Coast Guard Aids-to-Navigation Team San Francisco members Fireman Arman Purganan and Fireman Cary Meyer pull a buoy aboard the 26-foot trailerable aids-to-navigation boat, Sept. 9, 2019. The Coast Guard is responsible for ensuring signs, symbols, buoys, markers, lighthouses, and regulations are up to date and functioning properly so recreational and commercial boaters can safely navigate the maritime environment. (U.S. Coast Guard photo by Petty Officer 2nd Class Brandon Giles/Released)