Senate adopts gun‑show rules requiring vendor certifications, security plans and vendor penalties

The Colorado Senate on March 24 adopted House Bill 12‑38, a measure that imposes registration, security and compliance requirements on promoters and vendors at gun shows across the state.

Sponsors said the bill is intended to strengthen compliance with existing firearms laws at shows where a mix of private sellers and licensed dealers convene, and to reduce the risk that contraband, unserialized receivers or prohibited large‑capacity magazines are offered for sale.

Why it matters: Supporters argued that some gun shows have insufficient checks and oversight and that the bill reduces gaps that can enable illegal sales or diversion of firearms. Opponents described the bill as an overbroad set of costly regulatory requirements that will impose disproportionate burdens on small, community‑run shows and rural vendors.

Major provisions adopted - Promoter duties: Gun‑show promoters must maintain a plan addressing security, posting mandated signage, monitoring entrances and exits, and notifying local law enforcement…