(a) Except as provided in appendix D, section 3, of this part, special
VFR operations may be conducted under the weather minimums and
requirements of this section, instead of those contained in §91.155, below
10,000 feet MSL within the airspace contained by the upward extension of
the lateral boundaries of the controlled airspace designated to the
surface for an airport.
(b) Special VFR operations may only be conducted --
(1) With an ATC clearance;
(2) Clear of clouds;
(3) Except for helicopters, when flight visibility is at least 1
statute mile; and
(4) Except for helicopters, between sunrise and sunset (or in Alaska,
when the sun is 6 degrees or more below the horizon) unless --
(i) The person being granted the ATC clearance meets the applicable
requirements for instrument flight under part 61 of this chapter; and
(ii) The aircraft is equipped as required in §91.205(d).
(c) No person may take off or land an aircraft (other than a
helicopter) under special VFR --
(1) Unless ground visibility is at least 1 statute mile; or
(2) If ground visibility is not reported, unless flight visibility is
at least 1 statute mile. For the purposes of this paragraph, the term
flight visibility includes the visibility from the cockpit of an aircraft
in takeoff position if:
(i) The flight is conducted under this part 91; and
(ii) The airport at which the aircraft is located is a satellite
airport that does not have weather reporting capabilities.
(d) The determination of visibility by a pilot in accordance with
paragraph (c)(2) of this section is not an official weather report or an
official ground visibility report.