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Below is a list of online resources that can help you learn more about benchmarking and how to comply with Local Law 84 (LL84).

Where to Get Help
Additional Resources


ENERGY STAR Portfolio Manager
® Support

The U.S. Environmental Protection Agency (EPA) offers a range of courses and webinars that will train you in how to use Portfolio Manager®.

New Jersey Institute of Technology Certificate of Proficiency in Benchmarking®

The New Jersey Institute of Technology (NJIT) has a free online course that reviews the basics of Portfolio Manager®, and for a fee, offers a credential exam for a Certificate of Proficiency in Benchmarking®.

Where to Get Help


U.S. EPA has a help page where you can search a knowledge base, consult a glossary, or ask a question to an ENERGY STAR® staff member.

NYC Benchmarking Help Center

The NYC Benchmarking Help Center is the one stop shop for information, assistance, and answers to your questions about LL84.

Trained staff will walk you through benchmarking steps, point you to training and informational resources, and help you resolve problems so that you can meet the May 1 deadline with time to spare. You can send your questions to, or call 212-566-LL84 (212-566-5584).

For more assistance, you can fill out the Contact Form.

Department of Finance

If you believe your building should or should not be on the list, please email the Department of Finance (DOF) at to dispute building square footage or the number of buildings on a tax lot for both LL84 and LL87 lists.

Email and include in your email the following:

  • The building(s) borough, block and lot numbers
  • Contact name
  • Contact email address or telephone number
  • Reason for dispute with your correct square footage

Department of Buildings

To reach the Department of Buildings for questions related to enforcement and violations, please email with your building's identification information (including BBL, BIN, address, and/or violation number) and a short description of your question.

Department of Environmental Protection

All inquiries about water benchmarking should be directed to the Department of Environmental Protection at

Stay informed! Subscribe to the Greener, Greater Buildings Plan Digest

The NYC Benchmarking Help Center, in conjunction with the Mayor's Office of Sustainability (MOS), periodically distributes the Greener, Greater Buildings Plan (GGBP) Digest. The GGBP Digest contains news related to the four local laws of GGBP, training opportunities for building owners and managers, upcoming events, and reminders and advisories.

To be added to the email list and start receiving the GGBP Digest in your inbox, please sign up here.

Additional Resources

Local Law 84 of 2009 Law and Rule

Local Law 84 of 2009 Law (in PDF)
Local Law 84 of 2009 Rule (in PDF)
Summary for Local Law 84 (in PDF)

Greener, Greater Buildings Plan Email Digests

The Mayor's Office of Sustainability (MOS) periodically emails the Greener, Greater Buildings Plan (GGBP) Digests, which contain quick reminders and advisories regarding the four GGBP local laws. You can review past issues or add your name to the email list here.


Other LL84 Links

LL84 Home
Compliance Instructions
Energy and Water Data
Deadlines and Violations
Data Disclosure and Reports
NYC Benchmarking Help Center

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