COMDTINST M5300.3A governs the Coast Guard’s Officer Specialty Management System, including its policy, doctrine, practices, and procedures.
View COMDTINST M5300.3A on armypubs.army.mil
It defines the framework of officer specialties and subspecialties, their unique Officer Specialty Codes, and the roles responsible for managing the system. It also addresses Officer Specialty Requirements, the AJM/levels model, personnel management uses, forms, distribution, and environmental review.
Applies to: All Coast Guard unit commanders, commanding officers, officers-in-charge, deputy/assistant commandants, and chiefs of headquarters staff elements shall comply with the provisions of this Manual.
OSMS applies to commissioned officers and their corresponding officer positions, both active and Reserve. (paragraph 4)
Chief Warrant Officers (CWOs) are managed separately, and are not included in OSMS. (paragraph 4)
Likewise, failure to maintain requirements within a specialty can result in an officer losing their OSC. (paragraph 3)
Specialty Managers (SM) provide the requirements for their specialties via an Officer Specialty Requirement (OSR), Form CGHQ-5318, or the CGHQ-5320. (paragraph 3)
PSC-OPM-3 is the Program Manager for OSMS, and manages the assignment and deletion of OSCs from officers’ records. (paragraph 4)