Addressing the ranks

You must address the Armed Forces Recruit through [E-9] by their rank respective branch rank. 

EXAMPLE:	PROPER ADDRESS OF RANK:
Army Private	Private
Military Police Corporal	Corporal
Education Sergeant	Technical Drill Instructor
Military Police Command Sergeant Major	Command Sergeant Major

You must address any Commissioned Officer (O1 - O-10) as "Sir" or "Ma'am" accordingly as a sign of respect for their dedication and hard work that they have contributed to the United States Armed Forces.

Members of Senior Command and Department of Defense must be addressed as “Sir” or “Ma’am” depending on their respective gender.

Warrant Officers of any United States Armed Forces branch are not considered a Commissioned Officer. They shall be addressed by rank until successful completion of the Officer Accession Course.

Developers may be addressed by their rank or their name.

You may address any rank lower than yours by their rank or name.