Determine when an articulating/knuckle-boom crane loses its OSHA 1926.1400(c) exemption and requires full Subpart CC inspection and certified-operator compliance

Steps

1. Fetch 29 CFR 1926.1400 (scope) text, focusing on the material-delivery exclusions at 1926.1400(c)(17)(i) and (ii)
2. Confirm the narrow exemptions: (i) transferring materials from the truck crane to the ground without arranging them in a particular sequence for hoisting, and (ii) transferring building-supply sheet goods or packaged materials from the truck crane onto a structure via a fork/cradle, only when the crane has a properly functioning automatic overload-prevention device
3. Confirm that any articulating/knuckle-boom crane use outside these two narrow exclusions (e.g., handling precast concrete components in a planned rigging sequence) brings the equipment into full Subpart CC scope, including operator certification under 1926.1427 and the inspection requirements of 1926.1412
4. For an inspection company, confirm which operating mode was in use at the time of the work being reviewed, since the same physical crane can be exempt in one mode and fully in-scope in another
5. Reference NCCCO's published guidance document on articulating crane operator certification requirements as an industry-recognized interpretation, while treating the CFR text itself as the authoritative source