A project's scope is to replace street signs within a 10-km radius. The client refuses to sign the project closure report unless the radius is extended by 1 km to align with the council's development plan. What should the project manager do?

The correct approach is to obtain formal acceptance for the completed work and submit a change request. The project has delivered its defined scope (10-km radius), and the client's refusal to sign off is based on a new requirement. The project manager must secure formal acceptance for the work already completed to close the current project phase or the project itself. The request for an additional 1 km is a scope change that needs to go through the formal change control process. Delaying closure and asking for additional funding is premature without a formal change request. Contacting the council to extend the scope bypasses the necessary internal project change control. Initiating a new project is an option for significant, separate work, but a change request is appropriate for an extension of the current project's scope.