According to article 8 of 2014 Law on Marrage and Family: 

"1. A man and a woman wishing to marry each other must satisfy the following conditions:

a / The man is full 20 years or older, the woman is full 18 years or older;

b/ The marriage is voluntarily decided by the man and woman;

c/ The man and woman do not lose the civil act capacity;

d/ The marriage does not fall into one of the cases prescribed at Points a, b, c and d, Clause 2, Article 5 of this Law.

2. The State shall not recognize marriage between persons of the same sex."