Congress shields buses from pollution rules—and blocks citizens from suing

What it does

This bill prohibits states and localities from enforcing engine idling restrictions on over-the-road buses and school buses if the engine idles for less than 15 minutes. It also bars private citizens from suing bus operators for violating such restrictions and eliminates state 'bounty' programs that pay private individuals to report idling violations. The bill effectively shields buses from air-quality enforcement below the 15-minute threshold.

Why we flagged it

The bill's operative mechanism is to carve out buses from Clean Air Act enforcement by raising the idling-restriction threshold to 15 minutes and eliminating all enforcement pathways (state, local, citizen, and bounty-based). This is a targeted deregulation benefiting the bus industry at the expense of air-quality protections.

What the text implies

• The 15-minute threshold is not a safety or technical standard—it is a policy choice that permits substantial idling. A bus idling for 14:59 produces the same emissions as one idling for 15:01, but only the latter can be regulated.
• Elimination of citizen suits removes a key enforcement backstop. Even if states wanted to enforce stricter standards, private parties can no longer sue to compel compliance, concentrating enforcement power in state hands and then removing it entirely.
• Termination of state bounty programs within 180 days may disrupt existing enforcement infrastructure and eliminate a low-cost compliance mechanism that relied on community reporting.
• The bill does not exempt buses from federal EPA standards or other Clean Air Act provisions—it only shields them from state/local implementation plans and citizen enforcement, creating a regulatory gap where buses operate in non-attainment areas.

Section numbers refer to the bill text the analysis read — linked under Primary records below.

Who it affects

Ordinary citizens lose enforcement tools (state regulation, local enforcement, private litigation, and bounty programs) that would otherwise reduce air pollution from idling buses in their communities. The 15-minute threshold is permissive—buses can idle for up to 14 minutes 59 seconds without restriction—and the elimination of citizen suits removes a key accountability mechanism. Communities near bus depots, schools, and transit hubs will experience higher localized air pollution with no legal

Who stands to gain

• over-the-road bus operators
• school bus operators
• transit agencies operating buses

Named in the bill

Clean Air Act, EPA, over-the-road buses, school buses, state implementation plans, Americans with Disabilities Act of 1990, Section 110(a), Section 304

Where it stands

3 cosponsors: 2 Republicans, 1 Democrats.

• Jun 15, 2026 — Introduced · Congress.gov: “Introduced in House”
• Jun 15, 2026 — Referred to House Committee on Energy and Commerce · Congress.gov: “Referred to the House Committee on Energy and Commerce”
• Jul 14, 2026 — Markup held in committee · Congress.gov: “Subcommittee Consideration and Mark-up Session Held”

Dates and quoted wording are Congress.gov's action record; the timeline shows status changes, not every procedural step.

Money around this bill

2 lobbying clients named this bill on 2 disclosure filings across 1 quarter, Jun 2026 to Jun 2026. Those filings disclosed $17,050,000 in lobbying spend. A filing names 166 bills on average, so that figure is what each filing reported, not a share belonging to this bill.

More lobbying clients named this bill than 41% of bills with at least one filing.

Nicholas Langworthy, the sponsor, reported $1,046,611 in PAC receipts in the 2026 cycle.

• Chamber of Commerce of the U.S.A. — $16,950,000 on 1 filing
• Sierra Club — $100,000 on 1 filing

Lobbying Disclosure Act filings through Jul 20, 2026. A filing shows who paid to lobby on a bill it names, not what changed.