Definition
A section of Title 14 of the Code of Federal Regulations, Part 135, that prohibits a pilot operating under Part 135 from beginning an IFR flight to a destination unless the latest available weather reports or forecasts (or any combination thereof) indicate that weather conditions at the estimated time of arrival will be at or above the authorized IFR landing minimums for that airport.
Plain English
If you're flying for a Part 135 operator under IFR, you can't legally launch unless the forecast shows the destination will be good enough to land when you get there. Marginal forecasts ground the flight.
Context Anchor
Seen during Part 135 instrument flight planning, especially when checking whether a flight may legally depart based on the destination weather forecast.
Derivation
14 CFR refers to Title 14 of the Code of Federal Regulations, the body of U.S. aviation rules. Part 135 covers commuter and on-demand operations (small charter and air taxi). The number after the § (section) symbol identifies a specific rule within that part. So § 135.219 is rule number 219 inside Part 135.
Why Pilots Care
Failure to meet these minimums requires filing an alternate airport, directly affecting fuel, route, and go/no-go decisions on commercial IFR flights.
Grounding Statement
Before launching, the operator must look ahead to the arrival time, not just the departure weather, and confirm the destination is expected to be landable under the approved instrument minimums.
Intuition Check
Do not read “Part 135” as a physical part of the aircraft. It means a specific set of FAA operating rules for certain commercial flights, and § 135.219 is one rule within that set.
Example Sentence 1
Dispatch held the charter flight on the ground because § 135.219 requires the destination forecast to be at or above landing minimums at our ETA, and the TAF was showing visibility below minimums all afternoon.
Example Sentence 2
Because the destination forecast fell below the values in 14 CFR Part 135, § 135.219, the dispatcher added an alternate airport to the release.