Which afloat supply division is designated for the CPO mess?

The S-11 division is specifically designated for the CPO (Chief Petty Officer) mess. This division typically handles the supply and logistical needs that cater directly to the CPOs aboard a naval vessel. The S-11 division's responsibilities may involve managing provisions, overseeing the preparation of meals, and ensuring that the CPO mess operates smoothly and meets the nutritional needs of the CPOs.

In contrast, other divisions like S-10, S-12, and S-13 have different focuses. S-10 generally deals with general store operations, while S-12 often handles hazardous materials and specific stores. S-13 can be involved with fleet logistics or support functions that do not directly pertain to the CPO mess. Therefore, knowing the specific roles and responsibilities of each afloat supply division helps clarify why S-11 is the correct designation for the CPO mess.