Tennessee House Committee Advances Bill Creating State Oversight Authority for Nashville’s Music City Loop Project

Legislation would centralize approvals for underground transit projects as tunneling begins in Nashville

A Tennessee House committee has advanced legislation that would expand state control over the planning, permitting and oversight of the Music City Loop, an underground transportation project being developed in Nashville by The Boring Company. The committee vote moves the proposal forward in the General Assembly at a moment when early work on the project has already begun and local officials have continued to press for more transparency and defined safety assurances.

The bill would establish a new state entity, the Subterranean Transportation Infrastructure Coordination Authority, designed to serve as the primary coordinating and approval body for subterranean transportation projects in Tennessee. As described in legislative and public briefings on the proposal, the authority would be empowered to issue permits, acquire property, set rules and negotiate contracts connected to tunnel projects, consolidating functions that would otherwise involve multiple state agencies and local government processes.

Supporters of the measure have framed it as a way to create a consistent statewide framework for underground transportation infrastructure, emphasizing the need for streamlined coordination across safety, environmental review and construction logistics. The proposed structure would place key decision-making within an appointed board, reducing the role of Metro Nashville’s elected bodies in areas where tunnels intersect with public rights-of-way and related approvals.

The Music City Loop was announced in July 2025 as a privately funded tunnel system intended to connect downtown Nashville with Nashville International Airport, with later public descriptions indicating expansion plans beyond the initial segment. State leaders have promoted the project as an approach to easing congestion and adding transportation capacity without direct taxpayer funding for construction. Separate actions by state and federal transportation authorities have been cited by state officials as enabling initial phases to proceed, and the Metropolitan Nashville Airport Authority has pursued agreements intended to facilitate development tied to airport access and related revenue planning.

The legislative push has unfolded alongside growing debate over how much authority Nashville should retain over a major transportation project built under and around the city.

Nashville’s Metro Council has taken formal steps to put concerns on the record, approving a resolution opposing the project while calling for regular briefings, safety and environmental documentation, and labor standards tied to contractors. The resolution is not binding on state permitting decisions, but it reflects the friction over local input, emergency response planning, and the disclosure of project details such as timelines, route specifics and risk mitigation.

If enacted, the House bill would create a new governance layer for tunnel projects in Tennessee, potentially shaping not only the Music City Loop’s oversight but also how future underground transportation proposals are reviewed and approved statewide.

• What changed: A House committee advanced legislation to create a state subterranean transportation authority.
• What it would do: Centralize permitting, rulemaking and contracting for underground transit projects.
• What’s next: The bill must clear additional legislative steps before it could become law.