What is the Legal age to marry in Tennessee?

According to Tennessee marriage law FAQ...

You must be 18 years old or older to marry without parental consent. A birth certificate may be necessary to show proof of age. If either partner is under 18, parents or legal guardians must be present. If a parent can not be present, due to death, separation, divorce or other circumstances, proper evidence must be presented for verification. You will need a certified copy of your birth certificate. If you are under 16 you can not marry without a court order." The legal age to marry is 21 years as they are adults then, in the state of Tennessee