What do the last two numerals of a billet number on the watch, quarter, and station bill indicate?

The last two numerals of a billet number on the watch, quarter, and station bill signify the section seniority of the personnel assigned to that billet. In naval operations, organization and hierarchy are crucial for efficient functionality, especially in emergency situations. The numerical designation helps identify the order of seniority within the sections, indicating which personnel hold precedence in responsibilities and duties during their watches. This system supports effective command and allows for clear communication regarding roles and expectations, ensuring that senior personnel can guide operations when necessary.

Different functions within the bill might involve various assignments, and knowing the section seniority can improve coordination and expedite decision-making among crew members.