Any traffic counts used to validate that a segment has an ADT over 5,000 or has more than 4,000,000 tons of freight annually shall be updated by December 31, 2025. After December 31, 2025, traffic counts for ADT over 5,000 validation shall be updated a minimum of every two years and a minimum of every four years for annual freight tonnage more than 4,000,000 tons.