US14 CFR14 CFR Part 95Secondary legislationIn force

IFR Altitudes

14 CFR Part 95 establishes instrument flight rules (IFR) altitudes for aircraft operating on ATS routes and other direct routes, defining key altitude designations including MEA (minimum en route altitude), MAA (maximum authorized altitude), MOCA (minimum obstruction clearance altitude), MCA (minimum crossing altitude), and MRA (minimum reception altitude). The regulation designates mountainous areas and changeover points to ensure safe navigation and continuous signal reception from ground-based navigation aids.

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PART 95—IFR ALTITUDES

Special Federal Aviation Regulation No. 97

Subpart A—General

§ 95.1 Applicability.

(a) This part prescribes altitudes governing the operation of aircraft under IFR on ATS routes, or other direct routes for which an MEA is designated in this part. In addition, it designates mountainous areas and changeover points.

(b) The MAA is the highest altitude on an ATS route, or other direct route for which an MEA is designated, at which adequate reception of VOR signals is assured.

(c) The MCA applies to the operation of an aircraft proceeding to a higher minimum en route altitude when crossing specified fixes.

(d) The MEA is the minimum en route IFR altitude on an ATS route, ATS route segment, or other direct route. The MEA applies to the entire width of the ATS route, ATS route segment, or other direct route between fixes defining that route. Unless otherwise specified, an MEA prescribed for an off airway route or route segment applies to the airspace 4 nautical miles on each side of a direct course between the navigation fixes defining that route or route segment.

(e) The MOCA assures obstruction clearance on an ATS route, ATS route segment, or other direct route, and adequate reception of VOR navigation signals within 22 nautical miles of a VOR station used to define the route.

(f) The MRA applies to the operation of an aircraft over an intersection defined by ground-based navigation aids. The MRA is the lowest altitude at which the intersection can be determined using the ground-based navigation aids.

(g) The changeover point (COP) applies to operation of an aircraft along a Federal airway, jet route, or other direct route; for which an MEA is designated in this part. It is the point for transfer of the airborne navigation reference from the ground-based navigation aid behind the aircraft to the next appropriate ground-based navigation aid to ensure continuous reception of signals.

§ 95.3 Symbols.

For the purposes of this part—

(a) COP means changeover point.

(b) L means compass locator;

(c) LF/MF means low frequency, medium frequency;

(d) LFR means low frequency radio range;

(e) VOR-E means VOR and distance measuring equipment; and

(f) Z means a very high frequency location marker.

Subpart B—Designated Mountainous Areas

§ 95.11 General.

The areas described in this subpart are designated mountainous areas.

§ 95.13 Eastern United States Mountainous Area.

All of the following area excluding those portions specified in the exceptions.

(a) Area.

Beginning at latitude 47°10′ N., longitude 67°55′ W.; thence west and south along the Canadian Border to latitude 45°00′ N., longitude 74°15′ W.; thence to latitude 44°20′ N., longitude 75°30′ W.; thence to latitude 43°05′ N., longitude 75°30′ W.; thence to latitude 42°57′ N., longitude 77°30′ W.; thence to latitude 42°52′ N., longitude 78°42′ W.; thence to latitude 42°26′ N., longitude 79°13′ W.; thence to latitude 42°05′ N., longitude 80°00′ W.; thence to latitude 40°50′ N., longitude 80°00′ W.; thence to latitude 40°26′ N., longitude 79°54′ W.; thence to latitude 38°25′ N., longitude 81°46′ W.; thence to latitude 36°00′ N., longitude 86°00′ W.; thence to latitude 33°37′ N., longitude 86°45′ W.; thence to latitude 32°30′ N., longitude 86°25′ W.; thence to latitude 33°22′ N., longitude 85°00′ W.; thence to latitude 36°35′ N., longitude 79°20′ W.; thence to latitude 40°11′ N., longitude 76°24′ W.; thence to latitude 41°24′ N., longitude 74°30′ W.; thence to latitude 41°43′ N., longitude 72°40′ W.; thence to latitude 42°13′ N., longitude 72°44′ W.; thence to latitude 43°12′ N., longitude 71°30′ W.; thence to latitude 43°45′ N., longitude 70°30′ W.; thence to latitude 45°00′ N., longitude 69°30′ W.; thence to latitude 47°10′ N., longitude 67°55′ W., point of beginning.

(b) Exceptions. The area bounded by the following coordinates:

Beginning at latitude 45°00′ N., longitude 73°26′ W.; thence to latitude 44°32′ N., longitude 73°04′ W.; thence to latitude 42°51′ N., longitude 73°41′ W.; thence to latitude 41°38′ N., longitude 73°46′ W.; thence to latitude 41°16′ N., longitude 73°50′ W.; thence to latitude 41°17′ N., longitude 74°00′ W.; thence to latitude 41°25′ N., longitude 73°58′ W.; thence to latitude 41°26′ N., longitude 74°01′ W.; thence to latitude 41°37′ N., longitude 73°58′ W.; thence to latitude 42°41′ N., longitude 73°55′ W.; thence to latitude 43°02′ N., longitude 76°15′ W.; thence to latitude 43°17′ N., longitude 75°21′ W.; thence to latitude 42°59′ N., longitude 74°43′ W.; thence to latitude 42°52′ N., longitude 73°53′ W.; thence to latitude 44°30′ N., longitude 73°18′ W.; thence to latitude 45°00′ N., longitude 73°39′ W.; thence to latitude 45°00′ N., longitude 73°26′ W., point of beginning.

§ 95.15 Western United States Mountainous Area.

All of the following area excluding that portion specified in the exceptions:

(a) Area. From the Pacific coastline of the United States, eastward along the Canadian and Mexican borders, to the following coordinates:

Beginning at latitude 49°00′ N., longitude 108°00′ W.; thence to latitude 46°45′ N., longitude 104°00′ W.; thence to latitude 44°06′ N., longitude 103°15′ W.; thence to latitude 43°00′ N., longitude 103°15′ W.; thence to latitude 41°52′ N., longitude 103°39′ W.; thence to latitude 35°11′ N., longitude 103°39′ W.; thence to latitude 33°17′ N., longitude 104°27′ W.; thence to latitude 32°17′ N., longitude 104°14′ W.; thence to latitude 29°48′ N., longitude 102°00′ W.

(b) Exceptions.

(1) Beginning at latitude 35°25′ N., longitude 119°09′ W.; thence to latitude 35°29′ N., longitude 118°58′ W.; thence to latitude 36°49′ N., longitude 119°37′ W.; thence to latitude 38°30′ N., longitude 121°24′ W.; thence to latitude 39°30′ N., longitude 121°32′ W.; thence to latitude 40°08′ N., longitude 122°08′ W.; thence to latitude 40°06′ N., longitude 122°20′ W.; thence to latitude 39°05′ N., longitude 122°12′ W.; thence to latitude 38°01′ N., longitude 121°51′ W.; thence to latitude 37°37′ N., longitude 121°12′ W.; thence to latitude 37°00′ N., longitude 120°58′ W.; thence to latitude 36°14′ N., longitude 120°11′ W., point of beginning.

(2) Beginning at latitude 49°00′ N., longitude 122°21′ W.; thence to latitude 48°34′ N., longitude 122°21′ W.; thence to latitude 48°08′ N., longitude 122°00′ W.; thence to latitude 47°12′ N., longitude 122°00′ W.; thence to latitude 46°59′ N., longitude 122°13′ W.; thence to latitude 46°52′ N., longitude 122°16′ W.; thence to latitude 46°50′ N., longitude 122°40′ W.; thence to latitude 46°35′ N., longitude 122°48′ W.; thence to latitude 46°35′ N., longitude 123°17′ W.; thence to latitude 47°15′ N., longitude 123°17′ W.; thence to latitude 47°41′ N., longitude 122°54′ W.; thence to latitude 48°03′ N., longitude 122°48′ W.; thence to latitude 48°17′ N., longitude 123°15′ W.; thence North and East along the United States and Canada Boundary to latitude 49°00′ N., longitude 122°21′ W., point of beginning.

§ 95.17 Alaska Mountainous Area.

All of the following area excluding those portions specified in the exceptions:

(a) Area. The State of Alaska.

(b) Exceptions;

(1) Fairbanks—Nenana Area. Beginning at latitude 64°54′ N, longitude 147°00′ W; thence to latitude 64°50′ N, longitude 151°22′ W, thence to latitude 63°50′ N, longitude 152°50′ W; thence to latitude 63°30′ N, longitude 152°30′ W; thence to latitude 63°30′ N, longitude 151°30′ W; thence to latitude 64°05′ N, longitude 150°30′ W; thence to latitude 64°20′ N, longitude 149°00′ W; thence to latitude 64°07′ N, longitude 146°30′ W; thence to latitude 63°53′ N, longitude 146°00′ W; thence to latitude 63°53′ N, longitude 145°00′ W; thence to latitude 64°09′ N, longitude 145°16′ W; thence to latitude 64°12′ N, longitude 146°00′ W; thence to latitude 64°25′ N, longitude 146°37′ W; thence to latitude 64°54′ N, longitude 147°00′ W, point of beginning.

(2) Anchorage—Homer Area. Beginning at latitude 61°50′ N, longitude 151°12′ W; thence to latitude 61°24′ N, longitude 150°28′ W; thence to latitude 61°08′ N, longitude 151°47′ W; thence to latitude 59°49′ N, longitude 152°40′ W; thence to latitude 59°25′ N, longitude 153°10′ W; thence to latitude 59°00′ N, longitude 153°10′ W; thence to latitude 59°33′ N, longitude 151°28′ W; thence to latitude 60°31′ N, longitude 150°43′ W; thence to latitude 61°13′ N, longitude 149°39′ W; thence to latitude 61°37′ N, longitude 149°15′ W; thence to latitude 61°44′ N, longitude 149°48′ W; thence to latitude 62°23′ N, longitude 149°54′ W; thence to latitude 62°23′ N, longitude 150°14′ W; thence to latitude 61°50′ N, longitude 151°12′ W, point of beginning.

(3) King Salmon—Port Heiden Area. Beginning at latitude 58°49′ N, longitude 159°30′ W; thence to latitude 59°40′ N, longitude 157°00′ W; thence to latitude 59°40′ N, longitude 155°30′ W; thence to latitude 59°50′ N, longitude 154°50′ W; thence to latitude 59°35′ N, longitude 154°40′ W; thence to latitude 58°57′ N, longitude 156°05′ W; thence to latitude 58°00′ N, longitude 156°20′ W; thence to latitude 57°00′ N, longitude 158°20′ W; thence to latitude 56°43′ N, longitude 158°39′ W; thence to latitude 56°27′ N, longitude 160°00′ W; thence along the shoreline to latitude 58°49′ N, longitude 159°30′ W, point of beginning.

(4) Bethel—Aniak Area. Beginning at latitude 63°28′ N, longitude 161°30′ W; thence to latitude 62°40′ N, longitude 163°03′ W; thence to latitude 62°05′ N, longitude 162°38′ W; thence to latitude 61°51′ N, longitude 160°43′ W; thence to latitude 62°55′ N, longitude 160°30′ W; thence to latitude 63°00′ N, longitude 158°00′ W; thence to latitude 61°45′ N, longitude 159°30′ W; thence to latitude 61°34′ N, longitude 159°15′ W; thence to latitude 61°07′ N, longitude 160°20′ W; thence to latitude 60°25′ N, longitude 160°40′ W; thence to latitude 59°36′ N, longitude 161°49′ W; thence along the shoreline to latitude 63°28′ N, longitude 161°30′ W; point of beginning; and Nunivak Island.

(5) North Slope Area. Beginning at a point where latitude 69°30′ N intersects the northwest coast of Alaska and eastward along the 69°30′ parallel to latitude 69°30′ N, longitude 156°00′ W; thence to latitude 69°10′ N, longitude 153°00′ W; thence eastward along the 69°10′ N parallel to latitude 69°10′ N, longitude 149°00′ W; thence to latitude 69°50′ N, longitude 146°00′ W; thence eastward along the 69°50′ N parallel to latitude 69°50′ N, longitude 145°00′ W; thence to latitude 69°35′ N, longitude 141°00′ W; thence northward along the 141°00′ W Meridian to a point where the 141°00′ W Meridian intersects the northeast coastline of Alaska; thence westward along the northern coastline of Alaska to the intersection of latitude 69°30′ N; point of beginning .

(6) Fort Yukon Area. Beginning at latitude 67°20′ N, longitude 144°00′ W; thence to latitude 66°00′ N, longitude 143°00′ W; thence to latitude 66°05′ N, longitude 149°00′ W; thence to latitude 66°45′ N, longitude 148°00′ W; thence to latitude 67°00′ N, longitude 147°00′ W; thence to latitude 67°20′ N, longitude 144°00′ W; point of beginning.

(7) The islands of Saint Paul and Saint George, together known as the Pribilof Islands, in the Bering Sea.

§ 95.19 Hawaii Mountainous Area.

The following islands of the State of Hawaii: Kauai, Oahu, Molokai, Lanai, Kehoolawe, Maui, and Hawaii.

§ 95.21 Puerto Rico Mountainous Area.

The area bounded by the following coordinates:

Beginning at latitude 18°22′ N., longitude 66°58′ W., thence to latitude 18°19′ N., longitude 66°06′ W.; thence to latitude 18°20′ N., longitude 65°50′ W.; thence to latitude 18°20′ N., longitude 65°42′ W.; thence to latitude 18°03′ N., longitude 65°52′ W.; thence to latitude 18°02′ N., longitude 65°51′ W.; thence to latitude 17°59′ N., longitude 65°55′ W.; thence to latitude 18°05′ N., longitude 66°57′ W.; thence to latitude 18°11′ N., longitude 67°07′ W.; thence to latitude 18°22′ N., longitude 66°58′ W.; the point of beginning.

Subpart C—En Route IFR Altitudes Over Particular Routes and Intersections

§ 95.31 General.

This subpart prescribes IFR altitudes for flights along particular routes or route segments and over additional intersections not listed as a part of a route or route segment.

Subpart D—Changeover Points

§ 95.8001 General.

This subpart prescribes COP's for Federal airways, jet routes, area navigation routes, or other direct routes for which an MEA is designated in this part. Unless otherwise specified the COP is midway between the navigation facilities or way points for straight route segments, or at the intersection of radials or courses forming a dogleg in the case of dogleg route segments.

Source

https://www.ecfr.gov/current/title-14/part-95

Document officiel chez le régulateur. Citez toujours cette URL — et non la page de détail Vantage — dans les preuves de conformité.

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