Shoei-RF1000 Helmet DOT Approved

Closeup of the Maker's Mark and DOT sticker on a Bell Helmets RF-1000 Motorcycle Helmet

The DOT stamp should be in located on the rear center of the helmet.

Choose a motorcycle helmet certified with recognized safety standards and regulations. The big ones are DOT, ECE, Snell, and BSI.
Bell Helmets DOT stamp shown.