How often must an inspector/mechanic's competency be validated?

In Missouri, the competency of inspectors and mechanics must be validated every three years. This requirement ensures that all personnel involved in vehicle inspections remain knowledgeable about current standards, regulations, and practices. Regular validation is essential for maintaining the integrity and quality of vehicle inspections, as the automotive industry is constantly evolving with new technologies and safety regulations. By requiring this competency check every three years, the state can better assure that inspectors are up-to-date with the necessary skills and knowledge to perform thorough and accurate inspections, thus ensuring the safety of vehicles on the road.