BOSTON (AP) _ Transgender rights activists are marking the first anniversary of a Massachusetts law guaranteeing transgender people can use restrooms and locker rooms corresponding with their gender identities.

Activists said the law signed by Republican Gov. Charlie Baker has helped ensure transgender people aren't turned away at hotels or banks, denied lifesaving medical care, or mistreated when using a public restroom.

Opponents are pushing a repeal effort on next year's ballot.

Massachusetts Family Institute President Andrew Beckwith said critics fear the law gives men an excuse to enter women's bathrooms by making a gender identity claim.

A spokeswoman for Democratic Attorney General Maura Healey said the office has received zero complaints about people asserting gender identity for an improper purpose.