Kabanamoku Duke statue, the father of surfing that popularized the real sport. Waikiki Beach. O'ahu. Who can get marriage license? (Courtesy of the Hawaii Department of Health) • There is no problem if not a U.S. citizen. • No blood tests are required. • The legal age for marriage is at least 18 years for both sexes. • Women or men who want to marry and have 16 or 17 years old must submit a written consent signed by both parents, custodian, or guardian. Not having to be these state residents. • Forms must be obtained from a marriage license agent. • Women and men of 15 who wish to marry require the written consent of both parents, guardian or custodian. You also need to be approved in writing by the court of justice for family matters. Parents or guardians need not be residents of the state. • Proof of age is required. A copy of the birth certificate must be presented for anyone 18 years or less. The older can present their ID or driver's license. • cousin marriages can be performed. Similarly, the relationship between the bride and groom can not be closer than first cousins.