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Operations · Jul 22, 2026 · 13 min

FAA Part 133 Explained: The Complete Guide to Rotorcraft External-Load Operations

Every US commercial helicopter lift flies under 14 CFR Part 133. The 24-month certificate, load classes A to D, and congested area rules, decoded.

Part 133 FAA Regulations External Load Load Classes Human External Cargo Certification

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Part 133 (7) External Load (6) Density Altitude (4) Aircraft Selection (2) Chinook (2) Heavy Lift Helicopters (2) Heavy Lift Planning (2) Helicopter Lift Capacity (2) Lift Planning (2) Rigging (2) 14 CFR 133.33 (1) Aerial Lift Engineering (1)

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