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: 15 CSR 60-18.010 to 15 CSR 60-18.070, authority section 407.020, RSMo Supp. 2025, and section 407.145, RSMo 2016
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: Section 407.3405, RSMo, as created by 2026 Mo. Laws, HCS HBs 1839, 2921 & 3015