The bill S.146, introduced by Senators White and Harrison, mandates that employers with 50 or more employees in Vermont establish a Transportation Demand Management (TDM) plan aimed at reducing vehicle miles traveled. The new chapter added to the Vermont Statutes, Chapter 23, outlines definitions related to TDM, including what constitutes an employee, employer, and transportation management association. Employers are required to design, adopt, and implement a TDM plan that incorporates various measures such as telecommuting, carpooling incentives, and staggered work shifts.

Additionally, the bill stipulates that employers must consult resources such as the Agency of Transportation's TDM Guidance document and local transportation management associations when developing their plans. The Secretary of Transportation is authorized to adopt rules to establish requirements for these plans. The act will take effect upon passage, with a compliance deadline set for January 1, 2026, for the affected employers to implement their TDM plans.