The Office of Cutter Forces, CG-751 has issued an updated edition of “The Coasties’ Guide to the Merchant Mariner Credentialing Process.” you can see it as a pdf here.
Thanks to the National Cuttermen Association Chapter, Surface Navy Association for providing the link. .
Chuck Hill's CG Blog 
Chuck, Did Cutter Forces really use “Coasties'”as part of the title of an official document? Really?
You can see for yourself. At least it is non-directive, informational only, directed primarily at those who have or soon will leave active duty.
“Supporting the Transition of Active Duty Service Members and Military Veterans into the
Merchant Marine” https://www.cmts.gov/downloads/report_otmp_m2m_2020.pdf