Maine is taking the final comments this week about a proposal to begin offering non-binary birth certificates.

Non-binary people have a gender identity that is not strictly male or female. At least a dozen states offer some form of third gender ID or birth certificate. Maine is scheduled to stop taking comments on its proposal to start offering the new marker on birth certificates on Friday.

A notice on the Maine Department of Health and Human Services website states the proposed rule “protects the privacy of individuals requesting new records that align with their gender identity.”

The Maine Center for Disease Control and Prevention would have to approve of the rule change. The change would also need the approval of Maine Department of Health and Human Services Commissioner Jeanne Lambrew.