Once a critical lift plan has been agreed upon by all responsible jobsite personnel, crane operator and riggers, what must happen?

• A. Sign the plan before it can be implemented
• B. Submit to the project manager for approval
• C. Notify the client in writing
• D. Post the plan on the site bulletin board

Answer: (A)

The main idea here is formal authorization for a high-risk operation. After everyone who must review the plan—the responsible crew, the crane operator, and the riggers—has agreed, the plan must be signed before it can be implemented. The signature acts as official approval and assigns accountability, confirming that all parties have reviewed the details, understand their roles, and commit to following the plan. This signed record is what legally and practically allows the lift to go ahead.

Other steps like routing it for project manager approval, notifying the client in writing, or posting it on a bulletin board do not replace this formal authorization. They can be important for communication or oversight, but they don’t substitute the signed agreement required to proceed with a critical lift.