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HB 5073

AN ACT CONCERNING ENGINE BRAKING BY COMMERCIAL MOTOR VEHICLES.

2025 Regular Session Introduced by Mitch Bolinsky

Connecticut bill restricts commercial truck engine braking to reduce disruptive noise pollution in residential areas while balancing vehicle safety concerns.

REF. TO JOINT COMM. ON Transportation
#commercialmotorvehicles #motorvehicleequipment #noise
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Bill Summary · HB 5073

Legislative bill overview

HB 5073 addresses the use of engine braking (compression braking) by commercial motor vehicles in Connecticut. The bill establishes regulations around when and where truck drivers can use this noise-producing braking method. This follows longstanding complaints from residential areas where the loud retarder brake noise disrupts communities.

Why is this important

Engine braking produces noise levels that can reach 100+ decibels, creating significant quality-of-life issues for residents near highways and truck routes. Many states and municipalities have already implemented restrictions, making this a practical policy response to a documented public health concern. The balance between vehicle safety (engine braking helps prevent brake failure on steep grades) and community noise pollution is a genuine regulatory challenge.

Potential points of contention

  • Safety vs. noise control: Restricting engine braking may compromise commercial vehicle safety on downhill grades, where the practice prevents brake overheating and failure
  • Enforcement challenges: Determining where restrictions apply and monitoring compliance across highways and secondary roads creates practical implementation difficulties
  • Economic impact: Commercial trucking interests may argue restrictions increase maintenance costs or force expensive equipment modifications
  • Jurisdictional boundaries: Trucks crossing state/municipal lines may face inconsistent rules, complicating compliance for interstate commerce

Compiled from official sources — confirm details with the bill’s official record.

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