This course is to review and stay up to date on the latest changes in technology, components, contract documents, and construction procedures for MnDOT traffic control signals and lighting systems. The course is designed for those whose MnDOT Signal and Lighting certification is still valid but near expiration and allows them to maintain their certification for an additional 5 years. This is a web-based eLearning course with self-paced modules that will be open from March 17 - May 30, 2025.