14 CFR 91.155 - Basic VFR weather minimums.

Status message

There are 10 Updates appearing in the Federal Register for 14 CFR Part 91. View below or at eCFR (GPOAccess)
§ 91.155 Basic VFR weather minimums. Link to an amendment published at 79 FR 9972, Feb. 21, 2014. This amendment was delayed until Apr. 22, 2015 at 79 FR 22009, Apr. 21, 2014. Link to a correction published at 79 FR 41125, July 15, 2014.
(a) Except as provided in paragraph (b) of this section and§ 91.157, no person may operate an aircraft under VFR when the flight visibility is less, or at a distance from clouds that is less, than that prescribed for the corresponding altitude and class of airspace in the following table:
Airspace Flight visibility Distance from clouds
Class A Not Applicable Not Applicable.
Class B 3 statute miles Clear of Clouds.
Class C 3 statute miles 500 feet below.1,000 feet above. 2,000 feet horizontal.
Class D 3 statute miles 500 feet below.1,000 feet above. 2,000 feet horizontal.
Class E:
Less than 10,000 feet MSL 3 statute miles 500 feet below.1,000 feet above. 2,000 feet horizontal
At or above 10,000 feet MSL 5 statute miles 1,000 feet below.1,000 feet above. 1 statute mile horizontal.
Class G:
1,200 feet or less above the surface (regardless of MSL altitude)
Day, except as provided in § 91.155(b) 1 statute mile Clear of clouds.
Night, except as provided in § 91.155(b) 3 statute miles 500 feet below.1,000 feet above. 2,000 feet horizontal.
More than 1,200 feet above the surface but less than 10,000 feet MSL
Day 1 statute mile 500 feet below.1,000 feet above. 2,000 feet horizontal.
Night 3 statute miles 500 feet below.1,000 feet above. 2,000 feet horizontal.
More than 1,200 feet above the surface and at or above 10,000 feet MSL 5 statute miles 1,000 feet below.1,000 feet above. 1 statute mile horizontal.
(b) Class G Airspace. Notwithstanding the provisions of paragraph (a) of this section, the following operations may be conducted in Class G airspace below 1,200 feet above the surface:
(1) Helicopter. A helicopter may be operated clear of clouds if operated at a speed that allows the pilot adequate opportunity to see any air traffic or obstruction in time to avoid a collision.
(2) Airplane, powered parachute, or weight-shift-control aircraft. If the visibility is less than 3 statute miles but not less than 1 statute mile during night hours and you are operating in an airport traffic pattern within 1/2 mile of the runway, you may operate an airplane, powered parachute, or weight-shift-control aircraft clear of clouds.
(c) Except as provided in§ 91.157, no person may operate an aircraft beneath the ceiling under VFR within the lateral boundaries of controlled airspace designated to the surface for an airport when the ceiling is less than 1,000 feet.
(d) Except as provided in§ 91.157 of this part, no person may take off or land an aircraft, or enter the traffic pattern of an airport, under VFR, within the lateral boundaries of the surface areas of Class B, Class C, Class D, or Class E airspace designated for an airport—
(1) Unless ground visibility at that airport is at least 3 statute miles; or
(2) If ground visibility is not reported at that airport, unless flight visibility during landing or takeoff, or while operating in the traffic pattern is at least 3 statute miles.
(e) For the purpose of this section, an aircraft operating at the base altitude of a Class E airspace area is considered to be within the airspace directly below that area.
[Doc. No. 24458, 56 FR 65660, Dec. 17, 1991, as amended by Amdt. 91-235, 58 FR 51968, Oct. 5, 1993; Amdt. 91-282, 69 FR 44880, July 27, 2004]
Effective Date Notes:
1. By Amdt. 91-330, 79 FR 9972, Feb. 21, 2014, § 91.155 was amended by revising paragraphs (a) and (b)(1), effective Apr. 22, 2014. At 79 FR 22009, Apr. 21, 2014, the amendment was delayed until Apr. 22, 2015. For the convenience of the user, the revised text is set forth as follows:
§ 91.155 Basic VFR weather minimums.
(a) Except as provided in paragraph (b) of this section and§ 91.157, no person may operate an aircraft under VFR when the flight visibility is less, or at a distance from clouds that is less, than that prescribed for the corresponding altitude and class of airspace in the following table:
Airspace Flight visibility Distance from clouds
Class A Not Applicable Not Applicable.
Class B 3 statute miles Clear of Clouds.
Class C 3 statute miles 500 feet below.
1,000 feet above.
2,000 feet horizontal.
Class D 3 statute miles 500 feet below.
1,000 feet above.
2,000 feet horizontal.
Class E:
Less than 10,000 feet MSL 3 statute miles 500 feet below.
1,000 feet above.
2,000 feet horizontal.
At or above 10,000 feet MSL 5 statute miles 1,000 feet below.
1,000 feet above.
1 statute mile horizontal.
Class G:
1,200 feet or less above the surface (regardless of MSL altitude)
For aircraft other than helicopters:
Day, except as provided in § 91.155(b) 1 statute mile Clear of clouds.
Night, except as provided in § 91.155(b) 3 statute miles 500 feet below.
1,000 feet above.
2,000 feet horizontal.
For helicopters:
Day, except as provided in § 91.155(b) 1/2 statute mile Clear of clouds.
Night, except as provided in § 91.155(b) 1 statute mile Clear of clouds.
More than 1,200 feet above the surface but less than 10,000 feet MSL
Day 1 statute mile 500 feet below.
1,000 feet above.
2,000 feet horizontal.
Night 3 statute miles 500 feet below.
1,000 feet above.
2,000 feet horizontal.
More than 1,200 feet above the surface and at or above 10,000 feet MSL 5 statute miles 1,000 feet below.
1,000 feet above.
1 statute mile horizontal.
(b) * * *
(1) Helicopter. A helicopter may be operated clear of clouds in an airport traffic pattern within 1/2 mile of the runway or helipad of intended landing if the flight visibility is not less than 1/2 statute mile.
2. By Amdt. 91-330A, 79 FR 41125, July 15, 2014, § 91.155 was corrected at 79 FR 9973 by revising the entry “For helicopters: Day” in the table in paragraph (a), effective Apr. 22, 2015. For the convenience of the user, the revised text is set forth as follows:
§ 91.155 Basic VFR weather minimums.
(a) * * *
Airspace Flight visibility Distance from clouds
*******
Class G
*******
For helicopters:
Day 1/2 statute mile Clear of clouds
*******

Title 14 published on 2015-01-01.

The following are only the Rules published in the Federal Register after the published date of Title 14.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2015-07-21; vol. 80 # 139 - Tuesday, July 21, 2015
    1. 80 FR 43012 - Policy Regarding Living History Flight Experience Exemptions for Passenger Carrying Operations Conducted for Compensation and Hire in Other Than Standard Category Aircraft
      GPO FDSys: XML | Text
      DEPARTMENT OF TRANSPORTATION, Federal Aviation Administration
      Notice of policy statement.
      The moratorium will end on July 21, 2015.
      14 CFR Parts 91 and 119

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.


United States Code
U.S. Code: Title 49 - TRANSPORTATION

§ 106 - Federal Aviation Administration

§ 1155 - Aviation penalties

§ 40103 - Sovereignty and use of airspace

§ 40113 - Administrative

§ 40120 - Relationship to other laws

§ 44101 - Operation of aircraft

§ 44111 - Modifications in registration and recordation system for aircraft not providing air transportation

§ 44701 - General requirements

§ 44704 - Type certificates, production certificates, airworthiness certificates,,

§ 44709 - Amendments, modifications, suspensions, and revocations of certificates

§ 44711 - Prohibitions and exemption

§ 44712 - Emergency locator transmitters

§ 44715 - Controlling aircraft noise and sonic boom

§ 44716 - Collision avoidance systems

§ 44717 - Aging aircraft

§ 44722 - Aircraft operations in winter conditions

§ 46306 - Registration violations involving aircraft not providing air transportation

§ 46315 - Lighting violations involving transporting controlled substances by aircraft not providing air transportation

§ 46316 - General criminal penalty when specific penalty not provided

§ 46504 - Interference with flight crew members and attendants

§ 46506 - Application of certain criminal laws to acts on aircraft

§ 46507 - False information and threats

§ 47122 - Administrative

§ 47508 - Noise standards for air carriers and foreign air carriers providing foreign air transportation

§ 47528 - Prohibition on operating certain aircraft not complying with stage 3 noise levels

§ 47529 - Nonaddition rule

§ 47530 - Nonapplication of

§ 47531 - Penalties

§ 47534 - Prohibition on operating certain aircraft weighing 75,000 pounds or less not complying with stage 3 noise levels

Statutes at Large

Title 14 published on 2015-01-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 14 CFR Part 91 after this date.

  • 2015-08-20; vol. 80 # 161 - Thursday, August 20, 2015
    1. 80 FR 50587 - Revisions to Operational Requirements for the Use of Enhanced Flight Vision Systems (EFVS) and to Pilot Compartment View Requirements for Vision Systems; Reopening of Comment Period
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Federal Aviation Administration
      Notice of proposed rulemaking; reopening of comment period.
      The comment period for the NPRM published on June 11, 2013 (78 FR 34935) closed October 15, 2013, and is reopened until September 21, 2015.
      14 CFR Part 1, 23, 25, 27, 29, 61, 91, 121, 125, 135