14 CFR § 121.687 - Dispatch release: Flag and domestic operations.
(a) The dispatch release may be in any form but must contain at least the following information concerning each flight:
(1) Identification number of the aircraft.
(2) Trip number.
(3) Departure airport, intermediate stops, destination airports, and alternate airports.
(4) A statement of the type of operation (e.g., IFR, VFR).
(5) Minimum fuel supply.
(b) The dispatch release must contain, or have attached to it, weather reports, available weather forecasts, or a combination thereof, for the destination airport, intermediate stops, and alternate airports, that are the latest available at the time the release is signed by the pilot in command and dispatcher. It may include any additional available weather reports or forecasts that the pilot in command or the aircraft dispatcher considers necessary or desirable.
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