Montgomery County Police Chief Marc Yamada announced his resignation on September 18, 2026, ending his tenure at the head of the agency that provides law‑enforcement services to the suburban county bordering Washington, D.C.

The Montgomery County Police Department, responsible for public safety across the county’s residential neighborhoods, commercial districts and major thoroughfares, will continue its operations while county officials begin the process of selecting a successor. County Executive Marc Elrich, the elected leader of Montgomery County, is tasked with overseeing the transition and appointing a new chief to lead the department.

Yamada's departure comes at a time when the department is engaged in routine patrols, investigations and community‑policing initiatives throughout the region. The resignation does not affect the department’s day‑to‑day activities, and officers remain on duty to maintain public order and safety.

County officials indicated that the resignation was a personal decision and that no immediate operational changes are expected. The executive office will follow established procedures for filling the vacancy, which typically involve a search for qualified candidates within the department and, if necessary, external applicants.

Residents of Montgomery County can expect continuity in police services while the leadership transition proceeds. The county’s public information office will provide updates as the appointment process moves forward.

The resignation of a police chief is a notable event for any jurisdiction, and Montgomery County officials have emphasized their commitment to a smooth handover to ensure that the department’s mission of protecting the community remains uninterrupted.