The minimum age for young couples who want to register as so-called "life partners", or civil partners has been increased from 17 to 20 years old in the latest version of the Civil Partnership Bill amended by the state's legal advisory body, the Council of State.
The new age requirement is one of a number of contentious issues in the draft law that is intended to give better rights protection, especially to same-sex lovers.
The current stipulation for young couples where one or both are 17 years old requiring parental consent is "discriminatory", Kerdchoke Kasamwongjit, deputy chief of the Rights and Liberties Protection Department, said on Friday.
This had prompted the Council of State to make an adjustment to the draft to raise the minimum age to 20.
The amendments proposed by legal experts is in line with "human rights principles and the Thai context", Mr Kerdchoke said.
The amended version is being examined by the Justice Ministry before it is forwarded to the cabinet for a final say, he said.
On Dec 25, 2018, the cabinet agreed in principle to the 44-section bill. It then went through public forums, held by the Justice Ministry, to iron out some debatable clauses including those that omit rights to state welfare for same-sex couples even though they can legally adopt children under existing laws.
If the cabinet gives the green light to the latest version, the law will be passed to parliament to vote on.