Not sure if DOT/Coast Guard is same thing.
USCG falls under the DOT umbrella...
U.S. Department of Transportation / Office of the Secretary of Transportation

what i am asking is there any vitamins/diet/activity i can be doing to help speed the process up?
Exercise is the only proven way to expedite THCA unloading.

Have youve been testing yourself with a THC test kit?

Three days before the scheduled U/A, test yourself using the first urination of the day. If youre still testing positive, then stop all exercise and be as dormant as possible until after the U/A. Read posts #2 and #6 in this thread: http://boards.cannabis.com/drug-test...a-shocked.html

Also, begin your creatine loading 3 days before the U/A in preparation to use the Dilution method on the day of the U/A. Read the steps outlined in this thread (disregard the aspirin step though): http://boards.cannabis.com/drug-test...uidelines.html