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LD 502

An Act To Promote Clean And Affordable Maine-Sourced Bioenergy By Amending The Law Regarding Outdoor Wood Boilers And Outdoor Pellet Boilers

132nd Legislature (2025-2026) Introduced by Roger Albert and 7 co-sponsors

Failed Maine bill would have relaxed regulations on outdoor wood and pellet boilers to promote local bioenergy, but faced air quality and public health concerns.

Placed in Legislative Files (DEAD)
#airquality #openburning #woodandpelletboilers
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WeVote Research Nonpartisan
Bill Summary · LD 502

Legislative bill overview

LD 502 sought to amend Maine's regulations on outdoor wood boilers and outdoor pellet boilers to promote the use of Maine-sourced bioenergy as a heating alternative. The bill was introduced with bipartisan sponsorship but did not advance, as both the House and Senate committees voted "Ought Not to Pass" in late April 2025.

Why is this important

Outdoor biomass heating systems represent a potentially renewable energy source that could reduce reliance on fossil fuels and support Maine's forest products industry. However, such systems often face environmental and public health concerns due to air quality impacts, which likely explains the legislative resistance to expanding their use without stricter safeguards.

Potential points of contention

  • Air quality and emissions standards: Outdoor wood and pellet boilers can emit significant particulate matter and pollutants; expanding their use without robust emission controls could worsen air quality in residential areas
  • Regulatory burden vs. energy goals: Balancing Maine's climate and renewable energy objectives against existing air quality regulations and public health protections
  • Geographic disparities: Benefits to rural forest-dependent communities versus potential air quality impacts on densely populated areas where outdoor boilers are located

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

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