Per the guide: https://www.mynavyhr.navy.mil/Portals/55/Boards/Selection/ESSBD USER GUIDE (v5).pdf?ver=k35dhjXSjsirN3SVaSmktQ%3D%3D
"The Reference Line can be edited. Click into the reference and change the pre-populated reference.
Only one reference will be allowed."
However, I am certain there will be a healthy mix of edits and non-edits. A number of folks are still extremely confused by the two-step submission process via the ESSBD and likely will not even think about updating the reference as long as they ensure their full name and DODID are on each enclosure, as stated in the NAVADMIN.
Per the NAVADMIN, the only ESSBD guidance is:
" 5. Record review and communication with selection board: refer to reference
(f).
a. LTBs should be submitted via the Electronic Submission of Selection
Board Documents (ESSBD). If unable to use ESSBD and for more information on
LTBs, visit the following link: https://www.mynavyhr.navy.mil/Career-
Management/Boards/Active-Duty-Enlisted/General-Information/.
b. All LTBs and each enclosure must contain the candidates full name and
10-digit Department of Defense (DOD) identification number. Candidates must
verify that the correct board number is on their signed cover letter. Board
numbers are:
(1) Board #335 for SELRES.
(2) Board #336 for TAR.
(3) Board #360 for AC. "
So, if you have the full name, DOD ID, and correct board number ... you should be fine. IN THEORY....