HB 2546 Summary

• Exempts vehicles manufactured on or after the 2018 model year from Arizona's vehicle emissions inspection program requirements in areas A and B and for commuter vehicles.

• Modifies emissions testing requirements for vehicles manufactured before 2018, including updated testing protocols for diesel-powered vehicles and alternative fuel vehicles.

• Adds exemptions for cranes and oversize vehicles requiring permits under sections 28-1103 or 28-1144, and vehicles not in use owned by residents on active military duty outside Arizona.

• Extends the remote vehicle inspection pilot program completion deadline to July 1, 2025, requiring director certification before full-scale implementation.

• Makes all amendments conditional on EPA approval of proposed emissions testing program modifications as part of Arizona's state implementation plan by July 1, 2027.