Mississippi Gulf Coast Region Utility Act; expand provisions concerning promulgation of rules and regulations.

SB 2058 clarifies and expands the authority of county and regional utility authorities in Mississippi's Gulf Coast region to regulate water, wastewater, and stormwater systems. It requires all new systems to obtain county certification before construction or permitting, prohibits competing providers from entering areas served by licensed utilities without consent, and establishes penalties including $500 daily fines for violations. The bill directly affects municipalities, utility companies, and developers by strengthening county oversight and enforcing a "right of first refusal" for existing service areas. Key provisions include mandatory performance standards, certification requirements for systems, and allowing counties to pursue legal action to stop unauthorized service.