To become a swim coach, you need at least a high school diploma or GED certificate, First Aid and CPR training, and a swimming coach certification. Some employers also request proof of citizenship and employment history as a lifeguard or other aquatic safety professional. However, an essential requirement is extensive experience in the swimming world. Organizations typically prefer coaches who have competitive experience and understand what it takes to succeed as a professional swimmer. Additional qualifications include strong interpersonal and communication skills, the ability to coach outdoors year-round, and familiarity with OSHA safety standards.