HB 1839 (HCS HBs 1839, 2921 and 3015), Age Verification on Adult Websites
Enacted, not yet in force
Section 407.3405, RSMo, as created by 2026 Mo. Laws, HCS HBs 1839, 2921 & 3015
Effective 2026-08-28 · Applies to private
Codifies the age verification requirement for commercial websites where at least one third of published material is harmful to minors into statute, requiring reasonable age verification, a bar on retaining identifying information, and mandated warning notices about mental health resources, enforced by the Attorney General. Signed by the governor on July 9, 2026; effective August 28, 2026.
| Age threshold | 18 |
| Verification methods | gov id, transactional data, third party service |
| Penalties | Civil penalties up to 10,000 dollars per day, plus up to 250,000 dollars if a minor accessed the content |
| Enforcement body | Missouri Attorney General |
| Private suits | no |
Source: Full text of law
15 CSR 60-18, Attorney General Age Verification Rule
In force
15 CSR 60-18.010 to 15 CSR 60-18.070, authority section 407.020, RSMo Supp. 2025, and section 407.145, RSMo 2016
Effective 2025-11-30 · Applies to private
Missouri Attorney General rule declaring it an unfair practice under the Merchandising Practices Act for a commercial entity to operate a website or application where a substantial portion (33 percent or more) of content is pornographic for minors without reasonable age verification of users as 18 or older.
| Age threshold | 18 |
| Verification methods | digital id, gov id, transactional data |
| Penalties | Civil penalties up to 10,000 dollars per day in violations, capped per entity per day |
| Enforcement body | Missouri Attorney General under the Merchandising Practices Act, Chapter 407 RSMo |
| Private suits | no |
Source: Full text of law