AIM 3-1-4

No person may operate an aircraft under basic 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. (See TBL 3-1-1 .) NOTE-

Student pilots must comply with 14 CFR section 61.89(a) (6) and (7).

Except as provided in 14 CFR section 91.157, Special VFR Weather Minimums, 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. (See 14 CFR section 91.155(c).) TBL 3-1-4 Basic VFR Weather Minimums

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

½ 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