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HB 1595

An Act providing for the abrogation of regulations relating to the Pennsylvania Heavy-Duty Diesel Emissions Control Program and for the applicability of Federal standards.

2025-2026 Regular Session Introduced by Mike Armanini and 19 co-sponsors

Pennsylvania bill would eliminate state diesel emissions controls and adopt only federal standards, reducing business regulatory costs but potentially increasing air pollution.

Referred to Transportation
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Bill Summary · HB 1595

Legislative bill overview

HB 1595 seeks to eliminate Pennsylvania's Heavy-Duty Diesel Emissions Control Program and replace it with federal emissions standards. The bill would abrogate state-level regulations that currently go beyond federal requirements for heavy-duty diesel vehicle emissions in Pennsylvania.

Why is this important

Pennsylvania's diesel emissions program has imposed stricter pollution controls than federal law requires, affecting trucking companies, construction equipment operators, and other heavy-duty diesel users. The bill's passage would reduce regulatory compliance costs for businesses but could allow higher emissions levels in the state, with potential public health and environmental consequences.

Potential points of contention

  • Environmental impact: The state program reduces particulate matter and nitrogen oxide emissions more aggressively than federal standards; eliminating it may increase air pollution and associated respiratory health effects, particularly in densely populated areas
  • Economic trade-offs: While businesses would face lower compliance costs, any increased healthcare costs from worse air quality and potential federal fines for non-attainment areas would shift economic burdens elsewhere
  • State versus federal authority: Debate over whether Pennsylvania should maintain stricter standards within its authority or defer entirely to federal baselines, and whether federal standards adequately protect state residents

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

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