In this scenario, the project manager should assess the impact of including an additional geographical location in the project scope. This involves conducting a change impact analysis to understand how the change will affect the project's objectives, timeline, budget, and resources. Once the impact is assessed, the project manager should submit a change request for the inclusion of the two locations. The change request will be reviewed and approved by the project governance body, such as the project board or change control board, as part of the integrated change control process. This ensures that any scope changes are formally documented, evaluated, and approved before being implemented.
References: PMBOKGuide - Sixth Edition, Section 4.3 Direct and Manage Project Work; Section 4.6 Perform Integrated Change Control; Managing Change Practice Guide | PMI1.