Montana SB 544 (Adult Content)
What it does
Montana SB 544 makes any commercial site with a substantial share of material harmful to minors verify a visitor is 18 through a government ID or a commercial age-check service. A late amendment removed the Attorney General's enforcement role, so the law now runs on a private right of action for a person, or the parent of a minor, harmed by noncompliance.
Why it matters
Montana shows the model crosses party lines: the sponsor was a Missoula Democrat, not a culture-war Republican. Stripping out the Attorney General did not soften the demand on users, who still have to prove their age to reach lawful content.
Our take
A Democrat carried this in Montana, which tells you the age-verification push is not a one-party project. The Free Speech Coalition challenge was thrown out, so the law stands with private plaintiffs as the only enforcers.
Votes
- Senate — Passed (47 to 3) · April 4, 2023
- House — Passed (84 to 13) · April 24, 2023
Timeline
- May 19, 2023Signed into law
- January 1, 2024Took effect
Legal challenges
Our coverage: all age-verification stories · Status checked July 19, 2026