Construction mechanic (abbreviated as CM) is a United States Navy occupational rating.

Key responsibilities include: Training and Qualifications: Individuals pursuing a career as a Construction Mechanic in the U.S. Navy typically undergo rigorous training that covers mechanical systems, equipment operation, and maintenance procedures.

This training equips them with the skills necessary to handle the challenges of maintaining and repairing heavy construction machinery in various operational environments.

Career Path: Following completion of basic technical training, Construction Mechanics may expect assignments to a Naval Mobile Construction Battalion (NMCB) in Port Hueneme, CA, or Gulfport, MS, or to an Amphibious Construction Battalion (ACB) in San Diego, CA, or Little Creek, VA. NMCBs operate on a rotating basis between homeport and overseas locations such as Spain, Okinawa, or Guam.

Seabees receive additional specialized combat and construction skills training during home port duty.

Seabees construct buildings, roadways, utility systems, and other shore facilities to support the Navy and Marine Corps operational and expeditionary forces worldwide.

Notable Construction Mechanics Initially emerging from the Seabee ratings of Machinist's Mate (Equipment Operators) and the Motor Machinist's Mate, the rating underwent changes to better align with the diverse skill sets needed for construction projects.