What will the Coast Guard do about a mariner who refuses a test?
A refusal is handled in the same fashion as a positive test result. That does not mean a refusal is a positive, it simply means that the Coast Guard will seek the same sanctions against a licensed or documented mariner who refuses a test, as that for a licensed or documented mariner who fails a drug test. The Coast Guard would initiate Suspension & Revocation proceedings against the mariner, seeking the revocation of the license or document.