MassDEP Output Reporting

Certain facilities need to report their net electrical and/or steam output each year.
NOx Ozone Season Reports are due on December 1 annually. RGGI Net Output Reports are due March 1 annually.

MassDEP Output Reporting Contact


Michelle Blanchard 617-292-5664

The Details

How to submit

Email completed forms to:

See details below.

Next steps

  1. What to Know

    The owners/operators of certain facilities in Massachusetts are required to report net electrical output and/or steam output to the Department of Environmental Protection (MassDEP) on an ozone season or annual basis.

    NOx Ozone Season Net Output Reporting

    In response to a 2014 U.S. Court of Appeals decision, the U.S. Environmental Protection Agency (EPA) implemented the Cross-State Air Pollution Rule (CSPAR) to supersede its Clean Air Interstate Rule (CAIR), effective January 1, 2015. 

    Although the federal CAIR program and consequently the MassCAIR program ended as a result, the monitoring, reporting, and record-keeping requirements of the Massachusetts program remain in effect. 

    These include a requirement that after each ozone season, the owner/operator of any Nitrogen Oxide (NOx) Ozone Season Unit report its net electrical output and/or net steam output information to MassDEP if the unit has:

    • An electric output rating of at least 15 megawatts (MW), or 
    • A maximum design heat input of at least 250 million British thermal units per hour (MMBtu/hr)

    RGGI Annual Net Output Reporting

    Massachusetts participates in the Regional Greenhouse Gas Initiative (RGGI). This is an ongoing effort among Northeast and Mid-Atlantic States to develop and implement a regional carbon dioxide (CO2) cap-and-trade program aimed at stabilizing and then reducing CO2 emissions from large fossil-fuel-fired electricity generating units.

    RGGI requirements are incorporated into the Massachusetts CO2 Budget Trading Program regulations at 310 CMR 7.70.  

    The owner/operator of a CO2 Budget Unit that at any time since January 1, 2005, has served electricity generators with nameplate capacity of 25 megawatt equivalents (MWe) or more is required to:

    • Submit a RGGI Annual Net Output Report after each calendar year providing annual net electrical and/or net steam output.
  2. Review the Instructions

    Guidance on how to prepare the Net Output report(s) your facility is required to submit to MassDEP.

  3. Complete the Applicable Form(s)

    You may fill out and save Microsoft Word forms on your computer. PDF versions need to be printed out and completed by hand.

  4. Submit Your Report(s) to MassDEP

    Email completed form(s) by the deadline(s) below to:

    Type of
    Due Date
    NOx Ozone
    December 1
    RGGI Net
    March 1


Michelle Blanchard 617-292-5664


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