166X Strategic Sealift Officer

In the US Navy, 166X is the designator for a Strategic Sealift Officer (SSO). SSOs serve in traditional Mariner positions on civilian ships, including oceans, lakes, and inland rivers. They have the qualifications to command and/or provide engineering support for a ship.

To become a SSO, you must: Complete three Naval Science courses: Introduction to the Strategic Sealift Program, Naval Science for the Strategic Sealift Officer, and Leadership and Ethics Participate in a Naval Science Laboratory

To become a SSO, you must have previously been a: Merchant Marine Public Affairs Officer Fleet Support Officer Human Resources Officer Reserve Recruiting Officer