Relating to powers of regional transportation authorities.

HB 3187 creates a "General Mobility Program" allowing municipalities within regional transportation authorities to use up to 25% of their local sales tax revenue for transportation infrastructure projects. It directly affects cities in these authorities, enabling them to fund sidewalks, trails, streetlights, traffic signals, and drainage improvements on roads. The bill requires municipalities to submit annual project lists to regional boards and mandates that funds be distributed 50% upfront and 50% on reimbursement, with unused funds applied to debt payments secured by a 1% sales tax. This establishes a new, structured way for local governments to allocate tax revenue toward mobility improvements within their communities.