Maine voters approved a “red flag” or extreme risk protection gun law, making it the 22nd state with such legislation, allowing family members to petition courts to remove firearms from those deemed a risk to themselves or others.

The law differs from Maine’s existing “yellow flag” law, which requires law enforcement to petition and conduct behavioral health assessments before confiscation.

Proponents argue the measure protects due process, requiring sworn evidence in court, while opponents, including Governor Janet Mills, warn it could burden families and weaken current safeguards.

Mills noted that Maine’s existing law has successfully led to over 1,100 court orders to remove firearms and is highly effective, NBC News has reported.

Four other New England states—Vermont, Rhode Island, Massachusetts, and Connecticut—already have similar laws.