The US Coast Guard is reminding mariners that no matter the legal status of marijuana at the state level, testing positive for the drug still has consequences.

In a post to its Maritime Commons blog Tuesday, staff from the Coast Guard's Suspension & Revocation National Center of Expertise reminded mariners that even though 10 states and DC have legalized the drug and many more have approved medical use "the best decision a mariner can make is to avoid using marijuana or any products derived from marijuana."