For Part 135 charter operators + Part 91 corporate flight departments: 14 CFR §119 air carrier certificate, Part 91 vs 135 illegal-charter test, §135.267 flight/duty/rest, 49 CFR Part 40 + 14 CFR Part 120 drug testing, AAIP maintenance, MEL/MMEL OpSpec D095, TSA Twelve-Five, IRC §4261 7.5% FET, 14 CFR Part 295 charter broker.
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