The City of New York has adopted a new marriage policy that affects transgender people.

The new policy bans clerks from asking applicants to provide proof of gender beyond a government issued identification.

“Gender stereotypes or preconceived notions related to gender expression – including an applicant's physical appearance, dress, behavior or name – may not be considered when deciding whether to issue a marriage license,” a memorandum, signed by City Clerk Michael McSweeney, states.

“It is contrary to this policy to request any additional proof of sex when a valid government issued identification document … has been submitted and the sex listed on the such document matches the applicant's sex as indicated on the marriage application.”

Transgender rights advocates had threatened the city with legal action after a couple, both of whom are transgender, were asked in 2009 to produce birth certificates in order to receive a marriage license.

“Transgender people are challenged all the time about their status as men and women,” Michael Silverman, executive director of Transgender Legal Defense and Education Fund (TLDEF), said in a statement. “Our clients are legally entitled to marry and were denied that right because they are transgender. We applaud the City Clerk's office for adopting this policy and for taking steps to ensure that this does not happen again.”