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H3541 • 2025

An Act for greenhouse gas measuring and accounting truth

An Act for greenhouse gas measuring and accounting truth

Energy
Active

The official status still shows this bill as active or still awaiting another formal step.

Sponsor
Steven Owens
Last action
2026-04-06
Official status
Accompanied a study order, see H5323
Effective date
Not listed

Plain English Breakdown

Using official source text because the generated explanation was unavailable or could not be confirmed against the official bill text.

An Act for greenhouse gas measuring and accounting truth

An Act for greenhouse gas measuring and accounting truth By Representative Owens of Watertown, a petition (accompanied by bill, House, No.

What This Bill Does

  • An Act for greenhouse gas measuring and accounting truth By Representative Owens of Watertown, a petition (accompanied by bill, House, No.
  • 3541) of Steven Owens relative to carbon dioxide equivalents and factors that impact statewide greenhouse gas emissions.
  • Telecommunications, Utilities and Energy.

Limits and Unknowns

  • This entry is temporarily using official source text because the generated explanation could not be confirmed against the official bill text during the last sync.

Bill History

  1. 2026-04-06 House

    Accompanied a study order, see H5323

  2. 2025-12-04 House

    Reporting date extended to Wednesday, March 18, 2026

  3. 2025-10-17 Joint

    Hearing scheduled for 10/29/2025 from 01:00 PM-05:00 PM in A-1

  4. 2025-02-27 House

    Referred to the committee on Telecommunications, Utilities and Energy

  5. 2025-02-27 Senate

    Senate concurred

Official Summary Text

An Act for greenhouse gas measuring and accounting truth
By Representative Owens of Watertown, a petition (accompanied by bill, House, No. 3541) of Steven Owens relative to carbon dioxide equivalents and factors that impact statewide greenhouse gas emissions. Telecommunications, Utilities and Energy.

Current Bill Text

Read the full stored bill text
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Bill H.3541

SECTION 1. Section 1 of chapter 21N of the General Laws, as appearing in the 2022 Official Edition, is hereby amended by striking out the definition of “Statewide greenhouse gas emissions” and inserting in place thereof the following definition:-

''Statewide greenhouse gas emissions'', the total annual emissions of greenhouse gasses in the commonwealth, including all emissions of greenhouse gasses from the generation of electricity and the distribution and use of gas delivered to and consumed in the commonwealth, accounting for electric transmission and distribution line losses, and accounting for losses of gas in the commonwealth in transmission, storage, distribution, and use by consumers, whether the electricity is generated or the gas is produced in the commonwealth or imported; provided, however, that statewide greenhouse gas emissions shall be expressed in tons of carbon dioxide equivalents for both a timeframe of 20 years and for a timeframe of 100 years.

SECTION 2. Section 2 of said chapter 21N is hereby amended by striking out subsection (c) and inserting in place thereof the following:-

(c) The department shall annually publish a state greenhouse gas emissions inventory that includes comprehensive estimates and measurements as available of the quantity of greenhouse gas emitted in the commonwealth for the last years in which data is available; provided, (i) that the inventory shall use a timeframe of 20 years to calculate the global warming impact of short-acting greenhouse gasses and a timeframe of 100 years to calculate the global warming impact of long-acting greenhouse gasses; and (ii) that updated emissions factors, carbon dioxide equivalencies, and accounting methods shall be applied retroactively to 1990.

If such updates are not consistent with federal and other reporting requirements, the department shall report two statewide greenhouse gas emissions results side-by-side: (i) the results of the updated method using data specific to the commonwealth and the best available science and data including separation of short-acting and long-acting greenhouse gasses, and (ii) the results of the alternate accounting method required by federal or other entities.

SECTION 3: Said Chapter 21N is hereby amended by adding the following section:-

Section 13. The department shall require ongoing monitoring of greenhouse gas emissions in the commonwealth using (i) statistically significant sampling methods and locations; (ii) continuous or near continuous direct measurements of atmospheric greenhouse gas emissions with significant environmental impact, including but not limited to carbon dioxide, methane, nitrous oxide and hydrofluorocarbons; and (iii) the best available scientific methodology. Such monitoring shall be conducted by a qualified independent contractor chosen jointly by the department and the secretary. Emissions data collected shall be: (i) publicly available for research; (ii) compared annually to the emissions data in the greenhouse gas emissions inventory established pursuant to section 2(c) of this chapter; and (iii) analyzed to evaluate the source of any significant difference between emissions data collected under this section and emissions data reported under section 2(c).The department shall report such analysis with the statewide greenhouse gas emissions inventory.

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