Kodiak, Alaska (KINY) -Criminal proceedings were initiated after an investigation found possible drug activity on Kodiak Island.
The Kodiak Daily Mirror said the agency removed the 12 members from duty last fall.
Six other members were disciplined in nonjudicial punishment proceedings and they could also be discharged.
Lt. Cmdr. Raymond Reichl said the nonjudicial process doesn't result in criminal convictions.
Capt. Melissa Rivera, chief of staff for the 17th Coast Guard District, said drug use by members violates the agency's policy as well as federal law.
The Coast Guard did not release the names of the 12 members that face charges.