This is a combination Adult CPR, First Aid and AED course. It is approved by the U.S. Coast Guard for your initial application to the coast guard for a captain's license. Although not required for your license renewal, being certified every two years just makes good sense.
Don't forget that your mate should also become certified in CPR, First Aid and AED.
Remember, that is person is who will be administering the first aid or CPR to you if you need help.