| Aspect | Military Sealift Command | Navy Merchant Marine |
|---|
| Credentials | STCW certifications, maritime licenses | STCW certifications, maritime licenses |
| Work Environment | Support ships, logistics, cargo transport | Commercial ships, cargo and passenger vessels |
| Employer & Industry | U.S. Department of Defense, military logistics | Private shipping companies, commercial maritime industry |
The Military Sealift Command and Navy Merchant Marine both require maritime certifications and operate in maritime environments. However, the Military Sealift Command is a government agency supporting military logistics, while the Navy Merchant Marine typically refers to civilian mariners working on commercial vessels. Both roles involve maritime skills but serve different sectors within the maritime industry.