An inspection halted production because the inspector said regulatory labels were missing. What should the project manager do first?

The project manager should first review the quality management plan. This plan details how quality requirements will be met and identifies the processes and standards for quality control, including labeling requirements. By reviewing it, the project manager can confirm the established procedures for regulatory labels and identify any deviations or omissions that led to the inspection halt. Conducting an expert judgment evaluation might be a subsequent step if the plan is unclear or insufficient, but the initial action is to consult the existing project documentation. Updating the lessons learned register is a closing activity for this issue, not the immediate corrective action. Reviewing the risk management plan is less direct; while missing labels could be a risk, the immediate problem is a quality control failure, making the quality management plan the primary document to consult.