February 11 – The Montana Attorney General says the city of Helena will be investigated for violations of the state's ban on sanctuary cities. The city of Helena had passed a resolution stating that city officials would not disclose immigration status or national origin to outside agencies. In March, the city council votes to repeal the resolution.[2][3]
April 15 – The Montana Supreme Court rules that the Montana Department of Public Health and Human Services and Montana Department of Justice cannot block transgender residents from updating their legal documents to match their gender identity.[4]
