PPE = Long Sleeves, Vest during darkness, Bright Colored Shirt/jacket during daytime, boots over the ankle and long trousers - DOT helmet with ballistic eye protection or the FF shield... And MSF card with endorsement on your Driv Lic... I stick a copy in with my Reg/Insurance info.
Also, even OFF base if I get hurt not wearing PPE I am on the hook for medical expenses - 24/7...that is a DoD requirement that I just learned about last week during our Mandatory Safety Stand down/Operational Pause.
We just lost another Marine to a stupid accident Wednesday, brand new (that morning) MC doing a moving burnout, lost control and rode it into a Sherwin Williams paint store, building won.
Folks continue to do stupid sh!t and the rest of us get the evil eye for being a MC rider.

Sean
Sean that is actually a myth and urban legend that senior leaders ( like you and i) continue to perputuate.
a Line of Duty investigation must be conducted in every case,,,, and the investigator makes the determination to recommend LOD yes or LOD No in every case.
Ultimately, the decision belongs ( i think) to the SCMCA (Special Court Martial Convening Authority) no hard and fast rule..but more often than not..LOD yes... even for DUI deaths.
This myth is perpetuated by the same guys that tell you you cant get a hearing disability any more..since DOD gives you earplugs
my safety guys when cornered will give you the honest answer...
still yet.. I wear most of that chit all the time.... minus the dorky vest