Which pair correctly names the two crane lift types described in NAVFAC P-307?

• A. Complex and Non Complex
• B. Simple and Complex
• C. Heavy and Lightweight
• D. Primary and Secondary

Answer: (A)

In NAVFAC P-307, lifts are classified by how much planning and specialized rigging they require. The two lift types described are Complex and Non Complex. A complex lift involves unusual rigging, multiple loads, tricky geometry, or site conditions that demand thorough planning, possibly an engineering review, and a formal lift plan with close coordination. A non-complex lift is straightforward: standard rigging, a single crane, predictable load paths, and routine procedures with no special engineering review needed. This pairing is the official terminology used to distinguish lifts by the level of complexity and required oversight. The other options don’t reflect NAVFAC’s terminology, since terms like Simple, Heavy/Lightweight, or Primary/Secondary aren’t the designated classifications for crane lifts in that document.