It DOES appear that if Joe Schmoe has been Electrician, Crane Operator or in “eqv. supervisory position” (Camp Boss??) for 1 year and have passed a multiple choice exam at the end of the 5 days/36 hrs OIM MODU Course (+ hold valid survival, fifi and medical certificates), he’ll be good to go as OIM on a rig with >100 pers. on board working in the GoM.
Unfortunately the most popular FOCs used by American Drilling Contractors accept this as well.
Luckily not all shelf states are as “tolerant”.