Definition
The section of Title 14 of the Code of Federal Regulations, Part 135, that sets the IFR takeoff, approach, and landing weather minimums for operators conducting commuter and on-demand operations under Part 135. It governs whether a pilot may begin an instrument approach, continue past the final approach fix, and descend below specified altitudes based on reported weather conditions at the destination airport.
Plain English
This is the rule book paragraph that tells Part 135 charter and commuter pilots when the weather is good enough to start, continue, or finish an instrument approach. If the reported weather is below the limits in this section, the pilot is not allowed to continue the approach to a landing.
Context Anchor
Seen in instrument procedure and weather minimum discussions for Part 135 operators, especially when deciding whether a flight may begin or continue an instrument approach in reported low weather.
Derivation
The symbol § means 'section' and comes from Latin signum sectionis, the mark used in legal writing to point to a specific paragraph of a code. '135.225' identifies Part 135, Section 225 of Title 14 of the Code of Federal Regulations. Knowing the symbol just means 'section' makes the citation easy to read aloud as 'section 135.225.'
Why Pilots Care
It defines the legal weather floor for safe passenger-carrying departures and can be stricter than standard Part 91 rules.
Intuition Check
Do not read § 135.225 as an approach chart minimum or a weather report. It is the regulation that tells a Part 135 pilot how those minimums and weather reports control the decision to take off, start an approach, continue, or land.
Example Sentence 1
Before starting the approach into Aspen, the captain reviewed § 135.225 to confirm the reported visibility was at or above the minimum required for a Part 135 flight.
Example Sentence 2
Dispatch confirmed the airport met § 135.225 requirements before releasing the flight.