ISO/IEC 18025 Table 6.36 -- EDCS attribute enumerant codes for attributes whose label begins with A

Table 6.36 -- EDCS attribute enumerant codes for attributes whose label begins with A

Attribute label	Enumerant label	Definition	Code
ACCUMULATION_PERIOD_CATEGORY		The category of an <<ACCUMULATION_PERIOD>>.
	ONE_SECOND	One second.	1
	TWO_SECONDS	Two seconds.	2
	FIVE_SECONDS	Five seconds.	3
	TEN_SECONDS	Ten seconds.	4
	FIFTEEN_SECONDS	Fifteen seconds.	5
	THIRTY_SECONDS	Thirty seconds.	6
	ONE_MINUTE	One minute.	7
	TWO_MINUTES	Two minutes.	8
	FIVE_MINUTES	Five minutes.	9
	TEN_MINUTES	Ten minutes.	10
	FIFTEEN_MINUTES	Fifteen minutes.	11
	THIRTY_MINUTES	Thirty minutes.	12
	ONE_HOUR	One hour.	13
	TWO_HOURS	Two hours.	14
	THREE_HOURS	Three hours.	15
	FOUR_HOURS	Four hours.	16
	SIX_HOURS	Six hours.	17
	EIGHT_HOURS	Eight hours.	18
	TWELVE_HOURS	Twelve hours.	19
	TWENTY_FOUR_HOURS	Twenty-four hours.	20
	PRECIPITATION_START	Since the start of <PRECIPITATION>.	21
	PREVIOUS_OBSERVATION	Since the last observation.	22
	STORM_DURATION	The duration of a specific storm.	23
ACOUSTIC_CENTRE_FREQUENCY		The electro-acoustic one-third-octave band centre <<FREQUENCY>> (approximate).
	BAND_1_HZ	1 hertz.	1
	BAND_1r25_HZ	1,25 hertz.	2
	BAND_1r6_HZ	1,6 hertz.	3
	BAND_2_HZ	2 hertz.	4
	BAND_2r5_HZ	2,5 hertz.	5
	BAND_3r15_HZ	3,15 hertz.	6
	BAND_4_HZ	4 hertz.	7
	BAND_5_HZ	5 hertz.	8
	BAND_6r3_HZ	6,3 hertz.	9
	BAND_8_HZ	8 hertz.	10
	BAND_10_HZ	10 hertz.	11
	BAND_12r5_HZ	12,5 hertz.	12
	BAND_16_HZ	16 hertz.	13
	BAND_20_HZ	20 hertz.	14
	BAND_25_HZ	25 hertz.	15
	BAND_31r5_HZ	31,5 hertz.	16
	BAND_40_HZ	40 hertz.	17
	BAND_50_HZ	50 hertz.	18
	BAND_63_HZ	63 hertz.	19
	BAND_80_HZ	80 hertz.	20
	BAND_100_HZ	100 hertz.	21
	BAND_125_HZ	125 hertz.	22
	BAND_160_HZ	160 hertz.	23
	BAND_200_HZ	200 hertz.	24
	BAND_250_HZ	250 hertz.	25
	BAND_315_HZ	315 hertz.	26
	BAND_400_HZ	400 hertz.	27
	BAND_500_HZ	500 hertz.	28
	BAND_630_HZ	630 hertz.	29
	BAND_800_HZ	800 hertz.	30
	BAND_1000_HZ	1 000 hertz.	31
	BAND_1250_HZ	1 250 hertz.	32
	BAND_1600_HZ	1 600 hertz.	33
	BAND_2000_HZ	2 000 hertz.	34
	BAND_2500_HZ	2 500 hertz.	35
	BAND_3150_HZ	3 150 hertz.	36
	BAND_4000_HZ	4 000 hertz.	37
	BAND_5000_HZ	5 000 hertz.	38
	BAND_6300_HZ	6 300 hertz.	39
	BAND_8000_HZ	8 000 hertz.	40
	BAND_10_KHZ	10 kilohertz.	41
	BAND_12r5_KHZ	12,5 kilohertz.	42
	BAND_16_KHZ	16 kilohertz.	43
	BAND_20_KHZ	20 kilohertz.	44
	BAND_25_KHZ	25 kilohertz.	45
	BAND_31r5_KHZ	31,5 kilohertz.	46
	BAND_40_KHZ	40 kilohertz.	47
	BAND_50_KHZ	50 kilohertz.	48
	BAND_63_KHZ	63 kilohertz.	49
	BAND_80_KHZ	80 kilohertz.	50
	BAND_100_KHZ	100 kilohertz.	51
	BAND_125_KHZ	125 kilohertz.	52
	BAND_160_KHZ	160 kilohertz.	53
	BAND_200_KHZ	200 kilohertz.	54
	BAND_250_KHZ	250 kilohertz.	55
	BAND_315_KHZ	315 kilohertz.	56
	BAND_400_KHZ	400 kilohertz.	57
	BAND_500_KHZ	500 kilohertz.	58
	BAND_630_KHZ	630 kilohertz.	59
	BAND_800_KHZ	800 kilohertz.	60
ACOUSTIC_REFLECTION_TYPE		The type of acoustic reflection from a <WATER_BODY_FLOOR>.
	BOTTOM_HYPERBOLIC	Hyperbolic from the <WATER_BODY_FLOOR>; bottom hyperbolic.	1
	SUB_BOTTOM_HYPERBOLIC	Hyperbolic from below the <WATER_BODY_FLOOR>; sub-bottom hyperbolic.	2
AERIAL_TYPE		The structural type of an <AERIAL>.
	DIPOLE	Composed of two equal straight rods mounted in line with one another and having an electrical connection to its centre; specifically such an aerial half a wavelength long overall; a dipole aerial.	1
	FIXED_PHASED_ARRAY	An array of radiating elements, each of which can be driven with an adjustable phase to steer the resultant beam in a desired direction; a phased array.	2
	HORN	Has a radiating element that is a horn that radiates directly into space; a horn aerial.	3
	PARABOLIC	Has a reflector whose cross-section is parabolic and is capable of concentrating the radiated power into a parallel beam; a parabolic aerial.	4
	WHIP	Has a vertical telescoping element; commonly used in mobile or portable communication systems; a whip aerial.	5
	YAGI	Composed of a number of short rods mounted transversely on an insulating support; as a result is highly directional, receiving or transmitting within a narrow frequency band; a yagi aerial.	6
AERIAL_USE		The functional use of an <AERIAL>.
	AIR_TRAFFIC_CONTROL	Air traffic control.	1
	MARINE_RADIO_SERVICE	Transmits radio services useful to marine navigation.	2
	PUBLIC_SAFETY	Transmits radio services important to public safety.	3
	RADAR	Radar.	4
	RADIO_BROADCAST	Radio broadcast.	5
	SATELLITE_UPLINK	Satellite uplink.	6
	TELEVISION_BROADCAST	Television broadcast.	7
AERODROME_TYPE		The type of an <AERODROME>.
	AERODROME	<AERODROME>.	1
	AIRFIELD	<AIRFIELD>.	2
	AIRPORT	<AIRPORT>.	3
	DAFIF_A	An active civil <AERODROME> controlled and operated by civil authorities primarily for use by civil <AIRCRAFT>, although military may have landing privileges and/or contract rights; DAFIF A. Minimum <FACILITY>s are available that include: <CONTROL_TOWER> (or some similar control <SYSTEM>, such as a FSS that issues clearances and advisories when there is no <CONTROL_TOWER> or the <CONTROL_TOWER> is not in operation), <AERODROME_LIGHTING> such as flare pots, POL, and <FACILITY>s for organizational maintenance, or better.	4
	DAFIF_B	An active <AERODROME> jointly controlled, used, and/or operated by both civil and military agencies; DAFIF B. The military agencies are permanent operational flight line type tenants with, or without, <AIRCRAFT> stationed on the <AERODROME>. <FACILITY>s are the same as for civil (<<<DAFIF_A>> type) <AERODROME>s.	5
	DAFIF_C	An active military <AERODROME> controlled and operated by military authorities primarily for use by military <AIRCRAFT>, although civil <AIRCRAFT> may have landing privileges and/or contract rights; DAFIF C. <FACILITY>s are the same as for civil (<<<DAFIF_A>> type) <AERODROME>s.	6
	DAFIF_D	An active <AERODROME> having permanent surface <RUNWAY>s with less than the minimum <FACILITY>s required for civil (<<<DAFIF_A>> type) <AERODROME>s; DAFIF D. For the United States, the FAA term "inactive" is incorporated into this category.	7
	EMERGENCY	Designated for the emergency take-off and landing of <AIRCRAFT>.	8
	GENERAL_AVIATION	Designated for light or general aviation <AIRCRAFT> operations only.	9
	GLIDER	Designated for the take-off and landing of glider <AIRCRAFT>.	10
	HANG_GLIDER	Designated for the landing of hang glider <AIRCRAFT>.	11
	HELICOPTER	Designated for the takeoff and landing of <HELICOPTER>s.	12
	HELIPORT	<HELIPORT>.	13
	HELIPORT_AT_HOSPITAL	A <<<HELIPORT>> located at a <HOSPITAL_BUILDING>.	14
	MAJOR_AERODROME	A major (controlled) <AERODROME> that has an operating <CONTROL_TOWER>. Air traffic control is responsible for providing for the safe, orderly, and expeditious flow of air traffic at <AIRPORT>s where the type of operations and/or volume of traffic requires such a service. Pilots operating from a controlled <AIRPORT> are required to maintain two-way radio communication with air traffic controllers, and to acknowledge and comply with their instructions.	15
	MICROLIGHT	Designated for microlight or ultralight <AIRCRAFT>.	16
	MINOR_AERODROME	A minor (uncontrolled) <AERODROME> that does not have an operating <CONTROL_TOWER>. Two-way radio communications are not required, although it is a good operating practice for pilots to transmit their intentions on the specified <<FREQUENCY>> for the benefit of other traffic in the vicinity.	17
	PARASCENDING	Designated for parascending or parasailing <AIRCRAFT>.	18
	SEAPLANE_BASE	<SEAPLANE_BASE>.	19
	UNDEFINED_LANDING	Undefined landing <SITE>.	20
	WINCH_LAUNCHED_HANG_GLIDER	Designated for the winch-launching of hang glider <AIRCRAFT>.	21
AERONAUTICAL_LIGHT_TYPE		The type of <LIGHTING> or <SYSTEM> of <LIGHTING> that supports of aeronautical navigation; the aeronautical light type.
	AERODROME_TERMINAL	<LIGHT>s associated with an <AERODROME_TERMINAL>.	1
	AEROMARINE	A marine-type <LIGHT> for which part of the beam is deflected to an angle of 10 to 15 arc degrees above the horizon to facilitate use by <AIRCRAFT>; an aeromarine light.	2
	AIR_FORCE_OVERRUN	Air force <RUNWAY_OVERRUN>.	3
	ALSF_I	Approach lighting system with sequential flashing - type I.	4
	ALSF_II	Approach lighting system with sequential flashing - type II.	5
	ALTERNATE_CENTRE_LINE	Alternate centre-line and bar approach.	6
	APAP_ALIGNMENT	APAP alignment of elements systems.	7
	APRON_FLOOD	Floodlight associated with an <APRON>.	8
	ARTICULATED	Articulated.	9
	AUXILIARY	Auxiliary.	10
	BEACON_UNSPECIFIED	A <BEACON> of unspecified type.	11
	BLINKING_LIGHT	A blinking <LIGHT> displayed as a visual <AID_TO_NAVIGATION>.	12
	BOUNDARY	Lighting associated with a <BOUNDARY>.	13
	CALVERT_BRITISH	Calvert British.	14
	CENTRE_AND_DOUBLE_ROW	Centre and double row.	15
	CENTRE_LINE_2_CROSSBAR	Centre-line, 2 crossbars approach.	16
	CENTRE_LINE_AND_BAR	Centre-line and bar.	17
	CENTRE_LINE_HIGH_INTENSITY	Centre-line, high-intensity approach.	18
	CENTRE_ROW	Centre row.	19
	CENTRE_ROW_1_HI_INTENSITY	Centre row, category 1, high intensity.	20
	CENTRE_ROW_2_HI_VISIBILITY	Centre row, category 2, high visibility.	21
	CONSTANT_BEAM	A signal <LIGHT> that shows continuously in all <DIRECTION>s with constant luminous intensity and colour; a constant beam light.	22
	CROSS	Cross.	23
	FISHING	Fishing.	24
	FLARES	Flares.	25
	FOG_DETECTOR	A light used to automatically determine conditions of visibility on a <RUNWAY>; a fog detector light.	26
	FORMER_NATO_STANDARD	Former <<<NATO_STANDARD>>.	27
	HARBOUR	Navigational lighting associated with a <HARBOUR>.	28
	HIGH_INTENSITY_RUNWAY	High intensity <RUNWAY>.	29
	HONG_KONG_CURVE	Hong Kong curve.	30
	HORIZONTAL	Horizontal.	31
	IDENTIFICATION_BEACON	Identification <BEACON>.	32
	LANDING_DIRECTION	Landing direction indicator.	33
	LEFT_ROW_HIGH_INTENSITY	Left row high intensity.	34
	LEFT_SINGLE_ROW	Left single row.	35
	LOW_COST_VASI	Low cost <<<VASI>>.	36
	LOW_INTENSITY_RUNWAY	Low intensity <RUNWAY>.	37
	MAJOR	Major.	38
	MALSF	MALSF.	39
	MALSR	MALSR.	40
	MEDIUM_INTENSITY_RUNWAY	Medium intensity <RUNWAY>.	41
	MINOR	Minor.	42
	NARROW_MULTI_CROSS	Narrow multi-cross.	43
	NATO_STANDARD	NATO standard.	44
	NAVY_PARALLEL_ROW_AND_X	Navy parallel row and crossbar.	45
	NEON_LADDER	Neon ladder.	46
	NONE_AVAILABLE	None available.	47
	OBSTRUCTION	Obstruction.	48
	OBSTRUCTION_LIGHTING	Obstruction lighting.	49
	OCCASIONAL	Occasional.	50
	ODALS	ODALS.	51
	OPTICAL_LANDING_SYSTEM	Optical landing system.	52
	OTHER_AERODROME_LIGHTING	Other <AERODROME> lighting.	53
	OTHER_APPROACH_LIGHTING	Other approach lighting.	54
	OVERRUN_CENTRE_LINE	Lighting associated with the <CENTRE_LINE> of a <RUNWAY_OVERRUN>.	55
	PORTABLE_APPROACH	Portable approach.	56
	PORTABLE_RUNWAY	Portable runway.	57
	PRECISION_APPROACH	Precision approach path indicator.	58
	PRIMARY	Primary.	59
	PRIVATE	Private.	60
	RAIL	RAIL.	61
	RANGE	Range.	62
	ROTATING_BEACON	Rotating <BEACON>.	63
	RUNWAY	Lighting associated with a <RUNWAY>.	64
	RUNWAY_CENTRE_LINE	Lighting associated with a <RUNWAY_CENTRE_LINE>.	65
	RUNWAY_EDGE	Lighting associated with the edge of a <RUNWAY>.	66
	RUNWAY_END	Identification lighting associated with the end of a <RUNWAY>.	67
	RUNWAY_FLOOD	Flood lighting associated with a <RUNWAY>.	68
	RUNWAY_REGION	Runway region, including both the runway proper and the <<<RUNWAY_EDGE>>.	69
	SEASONAL	Seasonal.	70
	SECONDARY	Secondary.	71
	SEQUENCED_STROBE	Sequenced strobe.	72
	SINGAPORE_CENTRE_LINE	Singapore centre-line approach.	73
	SINGLE_ROW_CENTRE_LINE	Single row centre-line.	74
	SSALF	SSALF.	75
	SSALR	SSALR.	76
	STROBE	A light with an extremely short duration flash; strobe.	77
	TAXIWAY_LIGHTING	Lighting associated with a <TAXIWAY>.	78
	THRESHOLD	Threshold.	79
	TIDAL	Tidal.	80
	TOUCHDOWN_ZONE_LIGHTING	Touchdown zone lighting.	81
	TVASI_T_BAR	T-bar <<<VASI>>; TVASI.	82
	TWO_PARALLEL_ROW	Two parallel row.	83
	US_CONFIGURATION_B	US configuration B.	84
	VARIABLE_INTENSITY_RUNWAY	Variable intensity <RUNWAY>.	85
	VASI	VASI.	86
	VASI_2_BAR	Two bar <<<VASI>>.	87
	VASI_3_BAR	Three bar <<<VASI>>.	88
	VASI_PULSATING	Pulsating <<<VASI>>.	89
	VASI_WITH_INDICATOR	<<<VASI>> with indicator for threshold crossing height.	90
	VERTICAL	Vertical.	91
	WIND_INDICATOR	Lighting associated with a <WIND_INDICATOR>.	92
AEROSOL_PARTICLE_TYPE		The type of <PARTICLE> in an <AEROSOL>.
	DUST	<DUST>.	1
	HAZE	Fine <DUST>, <<<SALT_HAZE>>, <<<MIST>>, <SMOKE>, or other solid <PARTICLE>s that are invisible to the naked eye but which diminish horizontal visibility and give the <ATMOSPHERE> an opalescent appearance and render distant objects indistinct and subdued in colour; haze.	2
	MARINE	<AEROSOL>s that are generated in the marine environment by processes such as breaking <WATER_WAVE>s, and <<<OCEAN_SPRAY>>.	3
	MIST	An aggregate of microscopic and hygroscopic droplets of <WATER> suspended in the <ATMOSPHERE>, producing a thin, greyish veil that reduces visibility; mist.	4
	NITRATES	Nitrates derived from NO_x.	5
	NO_AEROSOL	No <AEROSOL>s are present.	6
	OCEAN_SPRAY	A stream of ocean <WATER> broken up into minute <PARTICLE>s and propelled into the <ATMOSPHERE>.	7
	SALT_HAZE	<PARTICLE>s of salt, suspended in the <ATMOSPHERE> due to the evaporation of <<<OCEAN_SPRAY>>.	8
	SAND	<PARTICLE>s of <SAND> suspended in the <ATMOSPHERE>.	9
	SMOKE	<SMOKE>.	10
	SOOT	Soot.	11
	SULFATES	Sulfates derived from either biogenic gases or SO₂.	12
	VOLCANIC_ASH	Fine or very fine pyroclastic <PARTICLE>s less than 4 millimetres in diameter that are blown out from an explosion of a <VOLCANO>; volcanic ash.	13
	VOLCANIC_DUST	<PARTICLE>s of <DUST> produced by an eruption of a <VOLCANO>; volcanic dust.	14
AID_TO_NAVIGATION_COLOUR- _PATTERN		The colour pattern of an <OBJECT> (for example: an <AID_TO_NAVIGATION>, a <BUOY>, a <BEACON>, or a <NAVIGATION_LIGHT>) of importance to navigation.
	BORDER_STRIPE	A band or stripe of colour that is displayed around the outer edge of an <OBJECT> and that may also form a border to an inner pattern or plain colour.	1
	CHECKERED	Alternate colours are used to create rectangles similar to a chess or draughtboard; checkered.	2
	DIAGONAL_STRIPES	Straight bands or stripes of differing colours painted diagonally.	3
	HORIZ_BANDS_TOP_TO_BOTTOM	Horizontal bands from top to bottom.	4
	HORIZ_STRIPES	Straight bands or stripes of differing colours painted horizontally.	5
	SINGLE_COLOUR	A single colour.	6
	SQUARED	Alternate colours are used to create squares similar to a chess or draughtboard in either a straight or diagonal pattern; squared or checker plate.	7
	STRIPES_DIRECTION_UNKNOWN	Straight bands or stripes of differing colours painted in an unknown direction.	8
	VERTICAL_STRIPES	Straight bands or stripes of differing colours painted vertically.	9
AID_TO_NAVIGATION_MARK_COLOUR		The colours of an <AID_TO_NAVIGATION> mark.
	BLACK	Black.	1
	BLACK_RED_BLACK	Black with red band.	2
	BLACK_YELLOW	Black above yellow band.	3
	BLACK_YELLOW_BLACK	Black with yellow band.	4
	GREEN	Green.	5
	GREEN_RED	Green above red band.	6
	GREEN_RED_GREEN	Green with red band.	7
	GREEN_WHITE	Green and white.	8
	ORANGE	Orange.	9
	RED	Red.	10
	RED_GREEN	Red above green band.	11
	RED_GREEN_RED	Red with green band.	12
	RED_WHITE	Red above white band.	13
	WHITE	White.	14
	YELLOW	Yellow.	15
	YELLOW_BLACK	Yellow above black band.	16
	YELLOW_BLACK_YELLOW	Yellow with black band.	17
	YELLOW_RED_YELLOW	Yellow with red band.	18
AID_TO_NAVIGATION_MARK_SYSTEM		The specific <SYSTEM> of <AID_TO_NAVIGATION> marks supported by an <OBJECT>.
	IALA_A	Conforms to the IALA system region B.	1
	IALA_B	Conforms to the IALA system region A.	2
	NO_SYSTEM	No system is present.	3
	SIGNI	Conforms to the Signs and Signals on Inland Waterways (SIGNI) system.	4
	US_INTRACOASTAL	Conforms to the US intracoastal waterway system (ICW), which runs from Manasquan Inlet in New Jersey to the Florida Keys, then north along the west coast of Florida and west along the Gulf coast to Brownsville, Texas.	5
	US_MODIFIED	Conforms to the modified US system.	6
	US_OLD	Conforms to the old US system.	7
	US_UNIFORM_STATE	Conforms to the US Uniform State Waterway Marking System (USWMS), which covers inland boating.	8
	US_WESTERN_RIVER	Conforms to the US Western Rivers system, which includes the Mississippi <RIVER> and its tributaries.	9
AID_TO_NAVIGATION_MARKER_TYPE		The type of a <MARKER> serving as an <AID_TO_NAVIGATION>.
	ELEC_BEACON	Electronic <BEACON>. Example: a radar pulse.	1
	ELEC_BEACON_VIS_DAYMARK	<<<ELEC_BEACON>> with an attached visual marker having a distinctive colour and shape that serves to facilitate its recognition against a daylight viewing background; an electronic beacon with visual daymark.	2
	VIS_BEACON	Visual <BEACON>. Example: a flashing <LIGHT>.	3
	VIS_BEACON_VIS_DAYMARK	<<<VIS_BEACON>> with an attached visual marker having a distinctive colour and shape which serves to facilitate its recognition against a daylight viewing background; a visual beacon with visual daymark.	4
	VIS_DAYMARK	Visual marker having a distinctive colour and shape which serves to facilitate its recognition against a daylight viewing background; a visual daymark.	5
AID_TO_NAVIGATION_STATUS		The status of an <OBJECT> as an <AID_TO_NAVIGATION>.
	LIT	Marked and illuminated; lit.	1
	MARKED	Marked.	2
	UNLIT	Marked but not illuminated; unlit.	3
	UNMARKED	Unmarked.	4
AID_TO_NAVIGATION_SYSTEM_TYPE		The type of a <SYSTEM> of <AID_TO_NAVIGATION>s.
	IALA	Conforms to either the IALA A or B system.	1
	IALA_REGION_A	Conforms to the IALA A system.	2
	IALA_REGION_B	Conforms to the IALA B system.	3
	NON_IALA	Conforms to a defined system other than IALA.	4
	NONCONFORMING	Does not conform to any defined system.	5
	SIGNI	Conforms to the Signs and Signals on Inland Waterways (SIGNI) system.	6
	US_INTRACOASTAL	Conforms to the US intracoastal waterway system (ICW), which runs from Manasquan Inlet in New Jersey to the Florida Keys, then north along the west coast of Florida and west along the Gulf coast to Brownsville, Texas.	7
	US_MODIFIED	Conforms to the modified US system.	8
	US_OLD	Conforms to the old US system.	9
	US_UNIFORM_STATE	<MARINE_AID_TO_NAVIGATION>s conform to the US Uniform State Waterway Marking System (USWMS), which covers inland boating.	10
	US_WESTERN_RIVER	Conforms to the US Western Rivers system, which includes the Mississippi <RIVER> and its tributaries.	11
AIRCRAFT_CARRIER_CLASS		The class of an <AIRCRAFT_CARRIER>.
	ASTURIAS	Spain Principe de Asturias VSTOL <AIRCRAFT_CARRIER>.	1
	DE_GAULLE	France Charles de Gaulle light <AIRCRAFT_CARRIER> (nuclear powered).	2
	DORIA	Italy Andrea Doria VSTOL <AIRCRAFT_CARRIER>.	3
	ENTERPRISE	US Navy Enterprise multirole <AIRCRAFT_CARRIER>.	4
	GARIBALDI	Italy Giuseppe Garibaldi VSTOL <AIRCRAFT_CARRIER>.	5
	INVINCIBLE	UK Invincible class VSTOL carriers.	6
	KENNEDY	US Navy John F. Kennedy multirole <AIRCRAFT_CARRIER>.	7
	KITTY_HAWK	US Navy Kitty Hawk class multirole <AIRCRAFT_CARRIER>s.	8
	KUZNETSOV	Russia Kuznetsov multirole <AIRCRAFT_CARRIER>.	9
	NAREUBET	Thailand Chakri Nareubet small VSTOL carrier.	10
	NIMITZ	US Navy Nimitz class multirole <AIRCRAFT_CARRIER>s.	11
	SAO_PAULO	Brazil Sao Paulo (Clemenceau class) light <AIRCRAFT_CARRIER>.	12
	VIRAAT	India Viraat VSTOL <AIRCRAFT_CARRIER>.	13
AIRCRAFT_FUNCTION		The operating function of an <AIRCRAFT>.
	AGRICULTURE	Applies seed, pesticides or herbicides in agricultural <REGION>s.	1
	AIR_DEFENCE	Engages in air defence operations.	2
	AMBULANCE	Transports sick or injured; ambulance operations.	3
	ASW	Engages in ASW operations.	4
	ATTACK	Engages in attack combat operations.	5
	BOMBER	Carries and drop bombs; a bomber.	6
	CARGO	Transports <CARGO>.	7
	COMMAND_AND_CONTROL	Operates in a command and control mode.	8
	COMMERCIAL	Engages in business operations.	9
	EARLY_WARNING	Utilizes long-range radar to detect approaching <AIRCRAFT> or <MISSILE>s; early warning operations.	10
	ELECTRONIC_WARFARE	Engages in electronic warfare operations.	11
	EXPERIMENTAL	Engages in experimental operations.	12
	FIGHTER	Engages in aerial combat; fighter operations.	13
	OBSERVATION	Makes observations and record phenomenon with instruments.	14
	PASSENGER	Carries passengers.	15
	PATROL	Engages in patrol operations.	16
	RECONNAISSANCE	Engages in reconnaissance operations.	17
	RESEARCH	Engages in research operations.	18
	SCOUT	Engages in scout operations.	19
	SEARCH_AND_RESCUE	Engages in search and rescue operations.	20
	SPECIAL_ELECTRONIC	To engage in special electronic operations.	21
	SPECIAL_OPERATIONS	Engages in special military operations.	22
	STRIKE	Engages in military <<<ATTACK>>, assault, or strike operations.	23
	SURVEILLANCE	Engages in surveillance operations.	24
	TANKER	Transports liquids, such as <PETROLEUM>, in bulk; tanker operations.	25
	TARGET	Serves as a target for training exercises or experimentation.	26
	TRAINER	Engages in training operations.	27
	TRANSPORT	Transports <EQUIPMENT>, <HUMAN>s, or <SUPPLIES_AND_EXPENDABLES>.	28
	UTILITY	Engages in utility operations.	29
AIRCRAFT_ICING_INTENSITY		The estimated intensity of the accumulation of <ICE> on exposed <SURFACE>s of an <AIRCRAFT> that is formed as the <AIRCRAFT> is flown through supercooled drops of <WATER> in <CLOUD>s or <RAIN>.
	NO_ICING	No icing.	1
	TRACE	The rate of accumulation becomes perceptible; trace. The rate of accumulation is slightly greater than the rate of sublimation. It is not hazardous even though de-icing/anti-icing <EQUIPMENT> is not utilized unless encountered for an extended period of time (over 1 hour).	2
	TRACE_IN_CLOUD	<<<TRACE>> icing occurring in <CLOUD>s.	3
	TRACE_IN_PRECIP	<<<TRACE>> icing occurring in <PRECIPITATION>.	4
	LIGHT	The rate of accumulation may create a problem if flight is prolonged in this environment (over 1 hour); light. Occasional use of de-icing/anti-icing <EQUIPMENT> removes/prevents accumulation. Icing does not present a problem if the de-icing/anti-icing <EQUIPMENT> is used.	5
	LIGHT_IN_CLOUD	<<<LIGHT>> icing occurring in <CLOUD>s.	6
	LIGHT_IN_PRECIP	<<<LIGHT>> icing occurring in <PRECIPITATION>.	7
	MODERATE	The rate of accumulation is such that even short encounters become potentially hazardous; moderate. Use of de-icing/anti-icing <EQUIPMENT> or flight diversion is necessary.	8
	MODERATE_IN_CLOUD	<<<MODERATE>> icing occurring in <CLOUD>s.	9
	MODERATE_IN_PRECIP	<<<MODERATE>> icing occurring in <PRECIPITATION>.	10
	SEVERE	The rate of accumulation is such that de-icing/anti-icing <EQUIPMENT> fails to reduce or control the hazard; severe. Immediate flight diversion is necessary.	11
	SEVERE_IN_CLOUD	<<<SEVERE>> icing occurring in <CLOUD>s.	12
	SEVERE_IN_PRECIP	<<<SEVERE>> icing occurring in <PRECIPITATION>.	13
AIRCRAFT_ICING_TYPE		The type of <ICE> that is expected to accumulate on the <SURFACE> of an <AIRCRAFT>.
	CLEAR	Relatively transparent <ICE> having a homogeneous structure and few pockets of <AIR>.	1
	FROST	A white, feathery deposit of interlocking crystals of <ICE> formed by the sublimation of water vapour on a <SURFACE> whose temperature is below freezing.	2
	MIXED	Combination of <<<CLEAR>>, <<<RIME>>, and <<<FROST>>.	3
	NONE_PRESENT	No icing is present.	4
	RIME	<RIME>.	5
AIRCRAFT_PROPULSION_TYPE		The type of propulsion of an <AIRCRAFT>.
	ELECTRIC	Using an electric motor.	1
	JET	Using a means of jet propulsion.	2
	RECIPROCATING_ENGINE	Using a piston or pistons moving up and down in cylinders; a reciprocating engine.	3
	ROCKET	Using a means of rocket propulsion.	4
	TURBOPROP	Using a <<<JET>> that also drives a propeller; a turboprop.	5
AIRCRAFT_TYPE		The type of an <AIRCRAFT>.
	AIRSHIP	<AIRSHIP>.	1
	AMPHIBIOUS	Designed to take off and land on <WATER_BODY>s.	2
	BALLOON	<BALLOON>.	3
	BLIMP	<BLIMP>.	4
	DIRIGIBLE	<DIRIGIBLE>.	5
	DRONE	Pilotless and designed for remote control operation; a drone.	6
	FIXED_WING	Designed with fixed wings.	7
	GLIDER	Designed to fly for long periods without power; a glider.	8
	LIGHT	Designed with reduced range and payload, generally for personel or light commercial use.	9
	ROTARY_WING	Designed with wings that provide lift and sometimes thrust by rotating about a vertical or near-vertical axis.	10
	SPACEPLANE	Designed for limited flight in <SPACE>; a spaceplane.	11
	STOL	Designed for STOL operations.	12
	UNMANNED_AUTONOMOUS	Designed for unmanned autonomous flight.	13
	VARIABLE_WING	Designed with a variable position wing system for alteration of its shape to facilitate a wider range of performance.	14
	VTOL	Designed for VTOL operations.	15
AIRSPACE_LIMITATION		The type of <AIRSPACE> wherein activities must be confined because of their nature and/or wherein limitations may be imposed upon <AIRCRAFT> operations.
	AIR_EXERCISE	Air exercise <REGION>.	1
	ALERT	Alert <REGION>.	2
	ANIMAL_PROTECTION	Permanent protection <REGION> containing wild <ANIMAL>s (especially <BIRD>s) or sensitive livestock.	3
	BIRD_BREEDING	Temporary protection <REGION> supporting nesting and breeding of wild <BIRD>s.	4
	BIRD_HAZARD	Hazards present due to <BIRD>s.	5
	BIRD_SANCTUARY	Sanctuary for <BIRD>s.	6
	CAUTION	Caution <REGION>.	7
	CONTROLLED_FIRING	Controlled, firing <REGION>.	8
	DANGER	Danger <REGION>.	9
	DEFENCE	Defence <REGION>.	10
	GAS_VENTING_STATION	Gas venting station.	11
	HAZARD_TO_AIRCRAFT	Hazard to <AIRCRAFT>.	12
	HELICOPTER_PROTECTION	Protection for <HELICOPTER>s.	13
	HIGH_INTENSITY_RADIO	High-intensity radio transmissions in vicinity.	14
	INDUSTRIAL_HAZARDS	Industrial hazards or <OBJECT> needing protection.	15
	INTENSE_AIR_ACTIVITY	Intense air activity <REGION>.	16
	LOW_FLY_AVOIDANCE	Low-flying avoidance <REGION>.	17
	LOW_FLY_DEDICATED_USER	Low-flying dedicated user area.	18
	LOW_FLY_TACTICAL_TRAINING	Low-flying tactical training area.	19
	MEDICAL	Health resorts or medical establishments.	20
	MICROLIGHT_FLYING	Intensive microlight or ultralight flying <REGION>.	21
	MILITARY_FLYING	Military flying zone.	22
	MILITARY_OPERATIONS	Military operations zone.	23
	NATURE_RESERVE	<NATURE_RESERVE>, <PARK>, or conservation <REGION> to be avoided.	24
	NON_FREE_FLYING	No free-flying.	25
	OPERATING	Operating <REGION>.	26
	PARACHUTE_DROP_ZONE	Parachute drop zone.	27
	PROHIBITED	Prohibited <REGION>.	28
	PROHIBITED_VFR	Prohibited - VFR.	29
	PROVOST_MARSHAL	Limitations on use imposed by local military police under the direction of the Provost Marshal.	30
	RESTRICTED	Restricted <REGION>.	31
	SPARSELY_SETTLED	Sparsely settled <REGION>.	32
	TEMPORARY_RESERVED	Temporary reserved <REGION>.	33
	TOWN_TO_BE_AVOIDED	<TOWN> to be avoided.	34
	WARNING	Warning <REGION>.	35
AIRSPACE_TYPE		The type of designated <AIRSPACE> within which some or all <AIRCRAFT> may be subject to air traffic control.
	ACC	ACC.	1
	ADVISORY	The <REGION> within 16,09 kilometres (10 statute miles) of an <AERODROME> where a <CONTROL_TOWER> is not operating but where a FSS is located; an advisory region. At such <LOCATION>s, the FSS provides advisory service to arriving and departing <AIRCRAFT>.	2
	AERODROME_ADVISORY	An advisory <REGION> for an <AERODROME>.	3
	AERODROME_CZ	An aerodrome <<<CONTROL_ZONE>>.	4
	AERODROME_RADAR_SERVICE	A radar service <REGION> for an <AERODROME>.	5
	AERODROME_TRAFFIC_ZONE	Aerodrome Traffic Zone.	6
	AIR_DEFENCE_IDZ	Air Defense Identification Zone.	7
	AIR_TO_AIR_REFUELING	Air-to-air refueling area/track/route.	8
	ALTIMETER_SETTING_REGION	A geographical <REGION> for which the lowest value of QNH is forecast hourly and relayed by air traffic control centres; an altimeter setting region.	9
	ARTCC	ARTCC.	10
	ARTCC_SECTOR_DISCRETE	A discrete sector of an ARTCC.	11
	BUFFER_ZONE	Buffer zone.	12
	CADIZ	CADIZ.	13
	CCA	CCA.	14
	CONTROL_AREA	Control Area (CTA).	15
	CONTROL_ZONE	A <<<CONTROLLED_AIRSPACE>> extending upwards from ground level to a specified upper limit; a protected <AIRSPACE> surrounding an <AERODROME> bounded by a circle of 3,70 kilometres (2 nautical miles) or 4,63 kilometres (2,5 nautical miles) <<RADIUS>> (depending on <<LENGTH>> of <RUNWAY>) centred on the mid-point of the longest <RUNWAY>; a control zone or region.	16
	CONTROLLED_AIRSPACE	<CONTROLLED_AIRSPACE>.	17
	CONTROLLED_VFR	Controlled VFR.	18
	DEWIZ	DEWIZ.	19
	DEWMIZ	DEWMIZ.	20
	FIC_FSS	FIC/FSS.	21
	FLIGHT_INR	A <REGION> where a variety of flight information (but not flight control) is provided by specific Flight Information Centres; a flight information region. Example: the United Kingdom has two flight information regions, London and Scottish.	22
	FRENCH_PERIPHERAL_IDZ	French peripheral IDZ.	23
	KOREA_LIMITED_IDZ	Korea limited IDZ.	24
	LFLY_AREA	Low-flying area.	25
	LFLY_DEDICATED_USER	A dedicated user <<<LFLY_AREA>>.	26
	LFLY_DIVIDING_LINE	A dividing line in a <<<LFLY_AREA>>.	27
	LFLY_FLOW_ARROW	A flow arrow in a <<<LFLY_AREA>>.	28
	LFLY_FLOW_CORRIDOR	A flow corridor <BOUNDARY> in a <<<LFLY_AREA>>.	29
	LFLY_SUB_BOUNDARY	A <BOUNDARY_COMPONENT> of a <<<LFLY_AREA>>; low-fly sub-boundary.	30
	LFLY_TACT_ROUTE	A tactical route <BOUNDARY> in a <<<LFLY_AREA>>.	31
	LFLY_TACT_TRAINING	A tactical training <<<LFLY_AREA>>.	32
	LFLY_WEATHER_CORRIDOR	A weather corridor in a <<<LFLY_AREA>>.	33
	MANDATORY_RADIO_AREA	Mandatory radio area.	34
	MAXIMUM_ELEVATION_FIGURE	Maximum elevation figure.	35
	MIDCANADA_IDZ	Mid-Canada IDZ.	36
	MLTRY_ATZ	Military ATZ.	37
	MLTRY_CLIMB_CORRIDOR	A positive <CONTROLLED_AIRSPACE> of defined vertical and horizontal dimensions extending from a military <AERODROME>; a military climb corridor.	38
	MLTRY_COMMON_AREA_CONTROL	Military Common Area Control (MCAC).	39
	MLTRY_CTZ	A protected <REGION> surrounding certain military <AERODROME>s that normally extends for a 9,26 kilometre (5 nautical mile) <<RADIUS>> around the <AERODROME> and upwards from the <SURFACE> to 914,4 metres (3 000 feet) above the level of the <AERODROME>; a military control zone or region. A 'stub' projection protects the final approach path to the main <RUNWAY> outwards from the <BOUNDARY> of the MATZ, enclosing a <REGION> 1,852 kilometre (two nautical mile) either side of the extended <RUNWAY_CENTRE_LINE> and upwards from 304,8 metres (1 000 feet) above the <SURFACE> to 914,4 metres (3 000 feet) above the elevation of the <AERODROME>. Although recognition of a MATZ is not mandatory for civil <AIRCRAFT>, all MATZ <AERODROME>s offer a penetration service to civil traffic during operational hours.	40
	MLTRY_RADAR_SERVICE_AREA	A mandatory <<<RADAR_SERVICE_AREA>>.	41
	MLTRY_SECTOR_CONTROL_CENTRE	Military sector control centre (SCC-AM).	42
	MLTRY_UPPER	Military upper.	43
	MOUNTAINOUS	A designated <MOUNTAINOUS_REGION>.	44
	OCA	US FAA OCA.	45
	OCA_NON_FAA	OCA other than FAA; a non-FAA OCA.	46
	POSITIVE_CONTROL_AREA	A positive <<<CONTROL_AREA>>.	47
	POSITIVE_CZ	A positive <<<CONTROL_ZONE>>.	48
	RADAR_AREA	Radar area.	49
	RADAR_AREA_SECTOR_BOUNDARY	A sector <BOUNDARY> of a <<<RADAR_AREA>>.	50
	RADAR_SERVICE_AREA	Radar service area.	51
	SAL_ENTRY	A special access lane entry.	52
	SAL_EXIT	A special access lane exit.	53
	SECURITY_IDZ	Security IDZ.	54
	SPC_RULES_AREA	Special Rules Area (SRA).	55
	SPC_RULES_ZONE	A protected <AIRSPACE> surrounding an <AERODROME> and extending from the <SURFACE> upwards to a specific level that affords safety to air traffic movements; a special rules zone. Designated in the vicinity of <AERODROME>s when the traffic level does not warrant the establishment of a CZ; a special rules zone.	56
	SUB_FLIGHT_INR	Sub-flight INR.	57
	TERMINAL_CONTROL	A <REGION> of <CONTROLLED_AIRSPACE> at the intersection of airways in the vicinity of control zones around major <AERODROME>s; a terminal control region.	58
	TERMINAL_RADAR_SERVICE_AREA	Terminal <<<RADAR_SERVICE_AREA>>.	59
	TRAFFIC_INZ	Traffic INZ.	60
	TRAINING	Designated for training.	61
	TRANSITION_AREA	Transition area.	62
	UNCONTROLLED_AIRSPACE	<UNCONTROLLED_AIRSPACE>.	63
	UPPER_ADVISORY_AREA	Upper advisory area.	64
	UPPER_AIRSPACE_CENTRES	Upper airspace centres operational air traffic.	65
	UPPER_CONTROL_AREA	An upper <<<CONTROL_AREA>>.	66
	UPPER_FLIGHT_INR	An upper <<<FLIGHT_INR>>.	67
	VFR_SECTOR_BOUNDARY	VFR sector <BOUNDARY>.	68
	ZONE_OF_INTERIOR	Zone of interior.	69
APERTURE_COVER_POSITION		The position of the covering (for example: a canopy or a hatch) of an <APERTURE>; the aperture cover position.
	CLOSED	Completely closed.	1
	OPEN	Completely open.	2
	OPEN_OCCUPANT_VISIBLE	Fully open with the occupant visible.	3
	POPPED	Partially open so that an occupant can see through small openings between the hatch and the <STRUCTURE> onto which it closes.	4
	POPPED_OCCUPANT_VISIBLE	Partially open with the occupant visible.	5
APERTURE_STATE		The state of closure of an <APERTURE>.
	CLOSED_LOCKED	Closed and locked.	1
	CLOSED_UNLOCKED	Closed and unlocked.	2
	FASTENED_SHUT	Fastened shut. Examples: nailed and screwed.	3
	OPEN	Open.	4
AQUEDUCT_TYPE		The type of an <AQUEDUCT>.
	CANAL	<CANAL>.	1
	ELEVATED_FLUME	Elevated on a suspended <FLUME>.	2
	FLUME	<FLUME>.	3
	IRRIGATION_DITCH	<IRRIGATION_DITCH>.	4
	ON_TERRAIN	Built directly on the <TERRAIN>.	5
	QANAT	Qanat.	6
	QANAT_SHAFT	<<<QANAT>> with one or more access shafts.	7
	SLUICE	<SLUICE>.	8
	UNDERGROUND	Underground.	9
ARRESTING_GEAR_TYPE		The type of <DEVICE> at the end of a <RUNWAY> that is used to stop <AIRCRAFT>; the arresting gear type.
	CABLE	A <LOAD_CABLE> that spans a <RUNWAY> or a flight deck on a <VESSEL> and is engaged by the arresting hook on an <AIRCRAFT>. Example: an aircraft arresting wire.	1
	JET_BARRIER	A <DEVICE>, other than a <<<CABLE>>, that is designed to stop an <AIRCRAFT> by absorbing its forward momentum; a jet barrier, a barricade, or an emergency barrier.	2
	NET	The principal <BARRIER> is a net.	3
ASSAULT_LANDING_CRAFT_TYPE		The type of a <LANDING_CRAFT> designed for amphibious assault operations.
	CHAHO_CLASS	North Korea Chaho class <COMBAT_SUPPORT_VESSEL>.	1
	CHONG_JIN_CLASS	North Korea Chong Jin class <COMBAT_SUPPORT_VESSEL>.	2
	KONGBANG_CLASS	North Korea Kongbang class assault hovercraft.	3
	LCAC_CLASS	US Navy LCAC.	4
	MOSKALENKO_CLASS	Russia Mitrofan Moskalenko (Ivan Rogov class) multi-role amphibious <VESSEL>.	5
	OCEAN_CLASS	UK LPH01 Ocean class amphibious assault <HELICOPTER> carrier.	6
	POMOMIK_CLASS	Russia Pomornik class large hovercraft.	7
	SIR_BEDIVERE_CLASS	UK L3004 Sir Bedivere class with aft <HELICOPTER> deck.	8
	SIR_TRISTRAM_CLASS	UK L3505 Sir Tristram class amphibious assault <VESSEL>.	9
	TARAWA_CLASS	US Navy Tarawa class amphibious <COMBATANT_VESSEL>.	10
	WASP_CLASS	US Navy Wasp class amphibious <COMBATANT_VESSEL>.	11
ASW_WINGED_AIRCRAFT_TYPE		The type of an <ASW_WINGED_AIRCRAFT>.
	B_17G	B-17G "Flying Fortress", manufactured by Boeing.	1
	H_16	H-16 Patrol Flying Boat, manufactured by Curtiss.	2
	HS_2L	HS-2L Patrol Flying Boat, manufactured by Curtiss.	3
	MARS	Mars, manufactured by Glenn Martin.	4
	NIMROD	Nimrod, manufactured by British Aerospace Corporation.	5
	P_3	P3 "Orion", manufactured by Lockheed.	6
	P_2	P2 "Neptune", manufactured by Lockheed.	7
	P_2Y	P2Y, manufactured by Consolidated.	8
	P_4M	P4M "Mercator", manufactured by Martin.	9
	P_5M	P5M "Marlin", manufactured by Martin.	10
	P_6M	P6M "Seamaster", manufactured by Martin.	11
	PB_2Y_5	PB2Y-5 "Coronado", manufactured by Consolidated.	12
	PB_4Y_1	PB4Y-1 "Liberator", manufactured by Consolidated.	13
	PB_4Y_2	PB4Y-2 "Privateer", manufactured by Consolidated.	14
	PBM	PBM "Mariner", manufactured by Martin.	15
	PBN_1	PBN-1 "Nomad", manufactured by Naval Factory.	16
	PBO_1	PBO-1 "Hudson", manufactured by Lockheed.	17
	PBY	PBY "Catalina", manufactured by Consolidated.	18
	PM_1_2	PM-1/2, manufactured by Martin.	19
	PV_1	PV-1" Vega Ventura", manufactured by Lockheed.	20
	PV_2	PV-2 "Harpoon", manufactured by Lockheed.	21
	R_4D_6	R4D-6, manufactured by Douglas.	22
	SB_2C	SB2C "Helldiver" Scout Bomber, manufactured by Curtis-Wright.	23
	XP_5Y_1	XP5Y-1 "Vultee", manufactured by Consolidated.	24
ATM_CEILING_METHOD		The method used to determine the <<ATM_CEILING>>.
	AIRCRAFT	By observation from an <AIRCRAFT>.	1
	BALLOON	By observing the ascent of a <BALLOON> and the altitude at which it disappears into the lowest <CLOUD>.	2
	CLOUD_OBSERVATION	By observing the vertical distance to the lowest <CLOUD>.	3
	ESTIMATED	By estimation.	4
	LASER_CEILOMETER	By measuring the time taken for a pulse of coherent light to travel from a transmitter to the base of the <CLOUD> and return to the receiver; laser ceilometer.	5
	MEASURED	By measurement.	6
	MODELED	By modelling using numerical methods.	7
	OBSCURATION_LIMIT	By the reported vertical distance limit of visibility into a surface-based obscuration.	8
	RADAR	By using radar.	9
	ROTATING_BEAM_CEILOMETER	By measurement of the angle of elevation of a light beam scanning the vertical plane, at the instant at which a proportion of the light scattered by the base of the <CLOUD> is received by a photoelectric cell directed vertically upwards at a known distance from the light source; rotating bean ceilometer.	10
	STATISTICALLY_DERIVED	By derivation using statistical methods.	11
ATM_PRESSURE_CHANGE_QUALITY		The quality of an <<ATM_PRESSURE_CHANGE_TENDENCY_CATEGORY>> measurement.
	GOOD	The quality of the value was acceptable; good.	1
	NO_CHECK	No check on the quality of the value was performed.	2
	SUSPECT	The value may be in error; suspect.	3
	ERR_CORRECTED	The original value was erroneous and was corrected.	4
	ERR_CORRECTION_SUSPECT	<<<ERR_CORRECTED>> but the corrected value may be in error.	5
	ERR	The value is erroneous.	6
	MISS_SUBST	<<<MISS>>, so a substitute value was provided.	7
	MISS_SUBST_SUSPECT	<<<MISS_SUBST>>, but the substitute value may be in error.	8
	MISS	The value is missing.	9
ATM_PRESSURE_CHANGE_TENDENCY- _CATEGORY		The qualitative <<ATM_PRESSURE_CHANGE_3_HOUR>>; the atmospheric pressure change tendency category.
	INC_THEN_DEC	Increasing, then decreasing; with <<ATM_PRESSURE>> the same or higher than 3 hours earlier.	1
	INC_THEN_STEADY	Increasing, then steady; or increasing, then increasing more slowly; with <<ATM_PRESSURE>> higher than 3 hours earlier.	2
	INC	Increasing (steadily or unsteadily), with <<ATM_PRESSURE>> higher than 3 hours earlier.	3
	CHANGE_TO_INC	Decreasing or steady, then increasing; or increasing, then increasing more rapidly; with <<ATM_PRESSURE>> higher than 3 hours earlier.	4
	STEADY_PRESSURE_EQUAL	Steady, with <<ATM_PRESSURE>> the same as 3 hours earlier.	5
	DEC_THEN_INC	Decreasing, then increasing; with <<ATM_PRESSURE>> the same or lower than 3 hours earlier.	6
	DEC_THEN_STEADY	Decreasing or steady, then increasing; or increasing, then increasing more rapidly; with <<ATM_PRESSURE>> higher than 3 hours earlier.	7
	DEC_PRESSURE_LESS	Decreasing (steadily or unsteadily), with <<ATM_PRESSURE>> lower than 3 hours earlier.	8
	CHANGE_TO_DEC	Steady or increasing, then decreasing; or decreasing, then decreasing more rapidly; with <<ATM_PRESSURE>> lower than 3 hours earlier.	9
ATM_PRESSURE_QUALITY		The quality of an <<ATM_PRESSURE>> measurement.
	GOOD	The quality of the value was acceptable; good.	1
	NO_CHECK	No check on the quality of the value was performed.	2
	SUSPECT	The value may be in error; suspect.	3
	ERR_CORRECTED	The original value was erroneous and was corrected.	4
	ERR_CORRECTION_SUSPECT	<<<ERR_CORRECTED>> but the corrected value may be in error.	5
	ERR	The value is erroneous.	6
	MISS_SUBST	<<<MISS>>, so a substitute value was provided.	7
	MISS_SUBST_SUSPECT	<<<MISS_SUBST>>, but the substitute value may be in error.	8
	MISS	The value is missing.	9
ATM_PROFILE_MEASUREMENT- _TECHNIQUE		The technique or method of collecting an <ATMOSPHERE_PROPERTY_SET> that is a series of measurements collected along a (roughly) vertical axis; the atmospheric profile measurement technique.
	AIRCRAFT	Measured by an <AIRCRAFT> as it ascends or descends through the <ATMOSPHERE>.	1
	DROPSONDE	Measured by a <DEVICE> attached to a parachute that is dropped from an <AIRCRAFT>; a dropsonde.	2
	PILOT_BALLOON	Measured by a small <BALLOON> that is tracked by a theodolite after being released from the <PLANETARY_SURFACE>; a pilot balloon (pibal).	3
	RADIOSONDE	Measured by a <DEVICE> carried by a <BALLOON>; a radiosonde.	4
	ROCKETSONDE	Measured by a rocket-propelled <DEVICE>; a rocketsonde.	5
	SATELLITE	Remotely sensed from an <ARTIFICIAL_SATELLITE>.	6
	WIND_PROFILER	Upper <ATMOSPHERE> measurements made by a <SYSTEM> consisting of a <<<RADIOSONDE>> and radiosonde ground <EQUIPMENT>; a wind profiler.	7
ATM_TURBULENCE_TYPE		The type of turbulence in the <ATMOSPHERE> experienced by <AIRCRAFT>.
	CLEAR_AIR	In clear <AIR>.	1
	CLOUD	In <CLOUD>.	2
	NO_TURBULENCE	No turbulence is present.	3
	NOT_SPECIFIED	The turbulence type is not specified.	4
ATM_VERTICAL_REFERENCE		The <SURFACE_DATUM> and accompanying method of reporting the vertical displacement to an <OBJECT> (for example: a level in an <ATMOSPHERE>) in an <ATMOSPHERE>; the atmosphere vertical reference.
	ICAO_STD_ATM	The reference <SURFACE_DATUM> is at 1 013,25 hectoPascal in the ICAO standard atmosphere and the resulting measurement is reported as the <<PRESSURE_ALTITUDE>>.	1
	ICAO_STD_ATM_FLIGHT_LEVEL	The reference <SURFACE_DATUM> is at 1 013,25 hectoPascal in the ICAO standard atmosphere and the resulting measurement is reported as an ICAO flight level.	2
	PLANETARY_SURFACE	The reference <SURFACE_DATUM> is a <PLANETARY_SURFACE> and the resulting measurement is reported as the height.	3
	STATION_ALTIMETER_SETTING	The reference <SURFACE_DATUM> is defined by the <<PRESSURE_ALTIMETER_SETTING>> and the resulting altimeter reading is reported as the indicated altitude.	4
	TRUE_ALTITUDE	The reference <SURFACE_DATUM> is MSL and the resulting measurement is reported as the true altitude.	5
ATS_AIRSPACE_CLASS		The class of an ATS <AIRSPACE>.
	A	IFR flights only are permitted, all flights are subject to air traffic control service and are separated from each other; class A.	1
	B	IFR and VFR flights are permitted and all flights are subject to air traffic control service and IFR flights are separated from each other; class B.	2
	C	Class <<<B>> where IFR flights are also separated from VFR flights by air traffic control service; class C. VFR receive traffic information about other VFR flights.	3
	D	Class <<<B>> where IFR flights also receive traffic information about VFR flights by air traffic control service; class D. VFR flights receive traffic information about all other flights.	4
	E	IFR and VFR flights are permitted and IFR flights are subject to air traffic control service and are separated from other IFR flights; class E. All flights receive traffic information as far as is practical.	5
	F	IFR and VFR flights are permitted and all participating IFR flights receive an air traffic advisory service and all flights receive flight information service if requested; class F.	6
	G	IFR and VFR flights are permitted and receive flight information service if requested; class G.	7
	SPECIAL_USE	Special use.	8
ATS_ROUTE_COMPONENT_LEVEL		The flight level of an <ATS_ROUTE_COMPONENT>.
	ABOVE_195	Used above flight level 195 (nominally 5 950 metres, or 19 500 feet, although the actual flight level based on the standard atmosphere is slightly higher).	1
	BELOW_195	Used below flight level 195 (nominally 5 950 metres, or 19 500 feet, although the actual flight level based on the standard atmosphere is slightly higher).	2
	BOTH_195	Used both <<<ABOVE_195>> and <<<BELOW_195>>.	3
	ABOVE_245	Used above flight level 245 (nominally 7 500 metres, or 24 500 feet, although the actual flight level based on the standard atmosphere is slightly higher).	4
	BELOW_245	Used below flight level 245 (nominally 7 500 metres, or 24 500 feet, although the actual flight level based on the standard atmosphere is slightly higher).	5
	BOTH_245	Used both <<<ABOVE_245>> and <<<BELOW_245>>.	6
	NIGHT_LOW_FLYING	Special <ROUTE> dedicated to night, low flying use.	7
ATS_ROUTE_TYPE		The type of an <ATS_ROUTE>.
	ADVISORY	ATS provides advice and information for the safe conduct of flight and movement of <AIRCRAFT>; an advisory route.	1
	AIR_ROUTE	A <<<CORRIDOR>> pre-established by ATS for the safe conduct of flight and movement of <AIRCRAFT>; an air route.	2
	AIRWAY	A control <REGION> or portion thereof established in the form of a <<<CORRIDOR>> equipped with radio <AID_TO_NAVIGATION>s; an airway.	3
	AREA_NAVIGATION	A <REGION> permitting operation of <AIRCRAFT> on any desired course within the coverage of station-referenced navigation signals or within the limits of a self-contained system capability; assigned by ATS upon pilot request; area navigation.	4
	ATLANTIC	An <AIRSPACE> over the Atlantic Ocean which requires specific filing and navigation procedures.	5
	BAHAMAS	An <AIRSPACE> over the Bahamas which requires specific filing and navigation procedures.	6
	CANADIAN_CONTROL	An <AIRSPACE> over Canada which requires specific filing and navigation procedures; Canadian control.	7
	CORRIDOR	A corridor between two <AID_TO_NAVIGATION>s which includes the <CENTRE_LINE> of the corridor and the airspace up to 7,5 kilometres on either side of the <CENTRE_LINE> and altitudes between 350 and 7 500 metres above MSL.	8
	DIRECT	A straight <LINE> between two identified <AID_TO_NAVIGATION>s; a direct route.	9
	HELICOPTER	Designated for use by <HELICOPTER>s.	10
	HELICOPTER_MULTI_ENGINE	A <<<HELICOPTER>> route that does not allow traversal by single-engine <HELICOPTER>s.	11
	JET	A high-altitude <<<AIRWAY>> marked by longer-range transmitting VOR <AID_TO_NAVIGATION>s that enable it to be navigated by high-speed jet-powered <AIRCRAFT>.	12
	LOW_FLYING	Assigned by ATS to low-flying <AIRCRAFT>.	13
	MILITARY	An <AIRSPACE> reserved for military operations.	14
	NORTH_AMERICA	An <AIRSPACE> over the North American continent that requires specific filing and navigation procedures.	15
	OCEANIC	An <AIRSPACE> over the Pacific Ocean that requires specific filing and navigation procedures.	16
	PURPLE_AIRWAY	Designated as a "PURPLE AIRWAY" by an ATS.	17
	ROYAL_HELICOPTER	Reserved for use by a <HELICOPTER> transporting royalty.	18
	ROYAL_LOW_LEVEL	Reserved for low-level flying by an <AIRCRAFT> transporting royalty.	19
	SUBSTITUTE	Assigned when any part of an <<<AIRWAY>> or <ATS_ROUTE> is unusable because of <AID_TO_NAVIGATION>s status, consisting of: Substitute <ATS_ROUTE>s, which are shown on national government charts; <ATS_ROUTE>s defined by ATC as specific <AID_TO_NAVIGATION> radials or courses; and <ATS_ROUTE>s defined by ATC as direct to, or between, <AID_TO_NAVIGATION>s.	20
	TACAN	Designated for use by an <AIRCRAFT>, normally military, possessing TACAN with DME but no VOR navigational system capability.	21
ATS_USE_TYPE		The type of use of a designated ATS <AIRSPACE>.
	AERODROME_CZ	Aerodrome <<<CZ>>.	1
	AIR_DEFENCE_ADVISORY	Advisory <REGION>, air defence.	2
	AIR_DEFENCE_IDZ	Air defence IDZ.	3
	AIRPORT_ADVISORY	Airport advisory region.	4
	AIRPORT_RADAR_SERVICE	Airport radar service <REGION>.	5
	AIRPORT_TRAFFIC	Airport traffic <REGION>.	6
	ALTIMETER_CHANGE_BOUNDARY	Altimeter change <BOUNDARY>.	7
	AREA_CONTROL	Area control centre.	8
	ARTCC	Air route traffic control centre.	9
	ARTCC_SECTOR	Air route traffic control centre sector or discrete.	10
	BERLIN_CZ	Berlin <<<CZ>>.	11
	BUFFER_ZONE	Buffer zone.	12
	CANADIAN_AIR_DEFENCE_IDZ	Canadian air defence IDZ.	13
	CLASS_C_CZ	Class C CZ.	14
	CONTINENTAL_CONTROL	Continental <<<CONTROL_REGION>>.	15
	CONTROL_REGION	Control <REGION>.	16
	CONTROL_VFR	Controlled VFR.	17
	CONTROLLED_AIRSPACE	<CONTROLLED_AIRSPACE>.	18
	CZ	CZ.	19
	CZ_NO_FIXED_WING	<<<CZ>> and no fixed wing special visual flight rules permitted.	20
	DEW_EAST_MLTRY_IDZ	DEW East military identification zone.	21
	DEW_IDZ	DEW IDZ.	22
	FLIGHT_INR	Flight INR.	23
	FRENCH_PERIPHERAL_IDZ	French peripheral IDZ.	24
	ICAO	ICAO.	25
	KOREA_LIMITED_IDZ	Korea limited IDZ.	26
	LOW_FLYING	Low flying <REGION>.	27
	MIDCANADA_IDZ	Mid-Canada IDZ.	28
	MLTRY_AERODROME_TZ	Military aerodrome TZ.	29
	MLTRY_CLIMB_CORRIDOR	Military climb corridor.	30
	MLTRY_COMMON_REGION_CONTROL	Military common region control.	31
	MLTRY_TERMINAL_CZ	Military terminal CZ.	32
	MLTRY_UPPER_CZ	Military upper CZ.	33
	MOUNTAINOUS	Designated <MOUNTAINOUS_REGION>.	34
	OCA_FAA	US FAA OCA.	35
	OCA_NON_FAA	OCA other than FAA; a non-FAA OCA.	36
	POSITIVE_CONTROL_REGION	Positive <<<CONTROL_REGION>>.	37
	POSITIVE_CZ	Positive <<<CZ>>.	38
	RADAR_REGION	Radar <REGION>.	39
	RADAR_SECTOR	The sector <BOUNDARY> of a <<<RADAR_REGION>>.	40
	REFUELING	A course used while refueling an <AIRCRAFT> during flight.	41
	REFUELING_OR_TRACK	<<<REFUELING>> or <<<TRACK>> <REGION>.	42
	SECURITY_IDZ	Security IDZ.	43
	SPECIAL_AIR_TRAFFIC_RULES	Special air traffic rules <REGION>.	44
	SPECIAL_OPERATIONS	Special operations <REGION>.	45
	SPECIAL_RULES_ZONE	Special rules zone.	46
	SPECIAL_USE_AIRSPACE	<SPECIAL_USE_AIRSPACE>.	47
	SUB_FLIGHT_INR	Sub-flight INR.	48
	TERMINAL_CONTROL	Terminal control <REGION>.	49
	TERMINAL_RADAR_SERVICE	Terminal radar service <REGION>.	50
	TRACK	Track.	51
	TRAFFIC_INZ	Traffic information zone.	52
	TRANSITION	Transition <REGION>; for chart use only.	53
	UNCONTROLLED	<UNCONTROLLED_AIRSPACE>.	54
	UPPER_ADVISORY_REGION	Upper advisory <REGION>.	55
	UPPER_AIRSPACE_CENTRE	Upper airspace centres, operational air traffic.	56
	UPPER_CONTROL_REGION	Upper <<<CONTROL_REGION>>.	57
	UPPER_FLIGHT_INR	Upper flight INR.	58
	ZONE_OF_INTERIOR	Zone of interior.	59
ATTACK_WINGED_AIRCRAFT_TYPE		The type of an <ATTACK_WINGED_AIRCRAFT>.
	A_1	A-1 "Skyraider", manufactured by Douglas.	1
	A_2	A-2 "Savage", manufactured by North American.	2
	A_3	A-3 "Skywarrior", manufactured by Douglas.	3
	A_4	A-4 "Skyhawk", manufactured by Douglas.	4
	A_5	A-5 "Vigilante", manufactured by North American.	5
	A_6	A-6 "Intruder", manufactured by Grumman.	6
	A_7	A-7 "Corsair" and "Corsair II", manufactured by LTV.	7
	A_9	A-9, manufactured by Northrop.	8
	A_10	A-10 "Thunderbolt" and "Thunderbolt II", manufactured by Fairchild Republic.	9
	A_12	A-12 "Avenger", manufactured by General Dynamics/McDonnell Douglas.	10
	A_26	A-26 "Counter Invader", manufactured by Douglas.	11
	A_37	A-37 "Dragonfly", manufactured by Cessna YA-37A.	12
	AC_47	AC-47 "Spooky", manufactured by Douglas.	13
	AC_119	AC-119G "Shadow" or AC-119K "Stinger", manufactured by Fairchild.	14
	AC_130	AC-130 "Spectre", manufactured by Lockheed.	15
	AU_23	AU-23 "Peacemaker", manufactured by Fairchild.	16
	AU_24	AU-24 "Stallion", manufactured by Helio.	17
	AV_8	AV-8 "Harrier", manufactured by McDonnell Douglas.	18
AUXILIARY_VESSEL_TYPE		The type of a <WATER_SURFACE_VESSEL> designed for auxiliary operations.
	APPLELEAF_CLASS_TANKER	An Appleleaf Class support tanker <VESSEL>; approximate dimensions: 170 by 26 metres.	1
	BULLDOG_CLASS_SURVEY	A Bulldog Class coastal survey <VESSEL>; approximate dimensions: 61 by 35 metres.	2
	FORT_GRANGE_CLASS_COMBAT- _SUPPORT	A Fort Grange Class <COMBAT_SUPPORT_VESSEL>; approximate dimensions: 184 by 24 metres.	3
	FORT_VICTORIA_CLASS_CARGO	A Fort Victoria Class multi-product <COMBAT_SUPPORT_VESSEL>; approximate dimensions: 204 by 29 metres.	4
	HECLA_CLASS_SURVEY	A Hecla Class hydrographic survey <VESSEL> also used for patrol or mine countermeasures; approximate dimensions: 80 by 15 metres.	5
	MOORHEN_CLASS_SALVAGE	A Moorhen Class salvage and mooring <VESSEL> designed for operating as a mooring <TENDER>, experiment support craft, or lifting craft; approximate dimensions: 32 by 12 metres.	6
	ROEBUCK_CLASS_SURVEY	A Roebuck Class surveying <VESSEL>; approximate dimensions: 64 by 13 metres.	7
	ROVER_CLASS_OILER	A Rover Class small oiler <VESSEL> designed for supporting distant stations; approximate dimensions: 140 by 19 metres.	8
	SAL_CLASS_MOORING	A Sal Class mooring <VESSEL> designed with large lifting abilities for mooring, <BUOY>, net tenders, major salvage, dive support and firefighting capabilities; approximate dimensions: 77 by 15 metres.	9
	STENA_CLASS_REPAIR	A Stena Class forward repair <VESSEL> designed for open-ocean salvage; approximate dimensions: 111 by 21 metres.	10
	TORNADO_CLASS_TORPEDO_RECOVERY	A Tornado Class torpedo recovery <VESSEL>; approximate dimensions: 48 by 9 metres.	11
AVAILABLE_FACILITIES_TYPE		The type of <FACILITY>s available at, or in the near vicinity of, a <HARBOUR> or marina.
	BOAT_LIFT	<BOAT_LIFT>.	1
	BOAT_RAMP	Boat ramp.	2
	BOTTLE_GAS	Provides bottled or liquefied petroleum gas.	3
	CAMPGROUND	<CAMPGROUND>.	4
	CHANDLER	A dealer in supplies for <VESSEL>s.	5
	DESALINATION	<EQUIPMENT> for desalination.	6
	ELECTRICITY	A connection to an electrical supply.	7
	EMERGENCY_TELEPHONE	A telephone for emergency use only.	8
	FRESH_WATER	Fresh <WATER>.	9
	FUEL_STATION	A fuel station.	10
	HEALTH_OFFICE	<HEALTH_OFFICE>.	11
	HELIPAD	An improved <SURFACE> used for take-off, and landing, by <HELICOPTER>s and other VTOL <AIRCRAFT>; a helipad.	12
	HOTEL	<HOTEL>.	13
	LAUNDERETTE	Launderette.	14
	MARINE_POLICE_STATION	<MARINE_POLICE_STATION>.	15
	NAUTICAL_CLUB	<NAUTICAL_CLUB>.	16
	NONE_AVAILABLE	None available.	17
	PARKING_FOR_BOATS	A place on <SHORE> where boats and/or trailers may be parked.	18
	PHARMACY	Pharmacy.	19
	PICNIC_TRACT	<PICNIC_TRACT>.	20
	POSTBOX	Postbox.	21
	PROVISIONS	A <MARKET> where food and other such supplies are available.	22
	PUBLIC_INN	<PUBLIC_INN>.	23
	PUBLIC_TELEPHONE	A telephone for public use.	24
	PUBLIC_TOILET	Toilets are available for public use.	25
	RECREATIONAL_VEHICLE_PARK	A <VEHICLE_LOT> where recreational <VEHICLE>s may be parked or where recreational <VEHICLE> accommodation is provided.	26
	REFUSE_BIN	<REFUSE_BIN>.	27
	REPAIR_BUILDING	<REPAIR_BUILDING>.	28
	RESTAURANT	<RESTAURANT>.	29
	SAILMAKER	Sail manufacture and/or repair.	30
	SCRUBBING_BERTH	A <VESSEL_BERTH> designed for careening; a scrubbing berth.	31
	SECURITY	A security service patrols or provides a secure lockup.	32
	SEWAGE_PUMP_OUT	<PUMP_OUT_FACILITY>.	33
	SHIPYARD	<SHIPYARD>.	34
	SHOWER	A shower.	35
	TICKET_SALE	Tickets may be purchased; ticket sale.	36
	VEHICLE_LOT	<VEHICLE_LOT>.	37
	VISITORS_BERTH	Temporary <VESSEL_BERTH> for visiting <VESSEL>s; a visitors berth.	38
	VISITORS_MOORING	Temporary mooring for visiting <VESSEL>s; a visitors mooring.	39
AVERAGING_PERIOD_CATEGORY		A category describing the <<AVERAGING_PERIOD>>.
	ONE_SECOND	One second.	1
	TWO_SECONDS	Two seconds.	2
	FIVE_SECONDS	Five seconds.	3
	TEN_SECONDS	Ten seconds.	4
	FIFTEEN_SECONDS	Fifteen seconds.	5
	THIRTY_SECONDS	Thirty seconds.	6
	ONE_MINUTE	One minute.	7
	TWO_MINUTES	Two minutes.	8
	FIVE_MINUTES	Five minutes.	9
	TEN_MINUTES	Ten minutes.	10
	FIFTEEN_MINUTES	Fifteen minutes.	11
	THIRTY_MINUTES	Thirty minutes.	12
	ONE_HOUR	One hour.	13
	TWO_HOURS	Two hours.	14
	THREE_HOURS	Three hours.	15
	FOUR_HOURS	Four hours.	16
	SIX_HOURS	Six hours.	17
	EIGHT_HOURS	Eight hours.	18
	TWELVE_HOURS	Twelve hours.	19
	TWENTY_FOUR_HOURS	Twenty-four hours.	20
AVIATION_LOCATION_ID_VALUE_SET		The value <SET> of a formatted <<AVIATION_LOCATION_IDENTIFIER>>.
	ICAO	A specific location identifier, formatted in a Basic Latin string as specified in [I7910, Encode table].	1
	US_FAA	A specific location identifier, formatted in a Basic Latin string as specified in [F7350].	2

http://www.iso.ch/iso/en/ittf/PubliclyAvailableStandards/ISO_IEC_18025_Ed1.html