190713-N-IW950-0025 SAN DIEGO (July 13, 2019) Navy Operational Support Center North Island conducts a monthly urinalysis test of assigned Reserve Sailors on Naval Air Station North Island. The NOSC collected 62 samples from Sailors that day to comply with zero tolerance drug use standards within the Navy. (U.S. Navy photo by Mass Communication Specialist 1st Class Shannon Chambers/Released)