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New York City’s Local Laws 97, 95, 87, 84, and 133, require owners of buildings to comply with a variety of benchmarking and energy efficiency reporting requirements as well as achieve reductions in greenhouse gas emissions. Partner Energy’s team is well-versed in these laws and our team of energy engineers, benchmarking specialists, and certified commissioning authorities helps our New York City clients stay compliant and avoid penalties. 


As part of New York City’s Climate Mobilization Act (CMA) passed in 2019, LL97 goal is to achieve a 40% reduction in greenhouse gas emissions from buildings by 2030 and a reduction of more than 80% by 2050. It will compare buildings current emissions to the limits set based on building type. Property managers and owners should use this emissions benchmarking data along with comprehensive audit reports to make informed dissections about upgrades.

  • Law goes into effect January 1st 2024
  • Buildings over 25,000 square feet must comply
  • Monthly penalty for not reporting = 50 cents per square foot
  • Annual penalty for emissions above the cap= $268 for EVERY excessive ton
  • False reporting can result in a $$500,000 fine and potential imprisonment for up to 30 days


LL95 is part of the NYC’s Climate Mobilization Act (CMA). This law mandates that buildings in New York City will need to post their energy efficiency rating in a public entrance,

  • Grades must be posted starting October 2020
  • Buildings larger than 25,000 square feet  must comply
  • As required by LL84 & LL133 and due by May 1st, buildings will annually benchmark their energy and water consumption using ENERGY STAR Portfolio Manager®
  • Penalty for non-compliance is a fine of $1,250 starting in 2024


LL87 mandates that properties submit energy audit and retro-commissioning reports to the NYC DOB every 10 years for all buildings over 50,000 square feet and multi-building properties over 100,000 square feet.

  • Compliance timelines are based on the borough, block and lot number for the given property and reporting is due by December 31st of their compliance year. The final digit of the compliance year matches the last digit of the property’s tax block number.
  • Exceptions and exemptions include new construction or anything that had major renovations
  • Penalty for failing to comply is a $3,000 fine for the first year and a $5,000 fine for every subsequent year of non-compliance
  • The City will only accept LL87 Reports once all fines have been paid in full
  • The property is only required to correct retro-commissioning deficiencies for LL87 compliance and more capital intensive energy audit recommendations do not need to be implemented by the property

NYC LL84 & LL133

LL84 and LL133 mandates annual energy and water benchmarking for all buildings over 25,000 square feet. Benchmarking informs the property managers and building owners about how their building’s energy and water performance compares to similar buildings, and can help identify energy efficiency and water efficiency opportunities.

  • Buildings will annually benchmark their energy and water consumption using ENERGY STAR Portfolio Manager®
  • Annual benchmarking due date is May 1st
  • Penalty for non-compliance is a $500 fine that are imposed quarterly as long as the building is out of compliance
  • The NYC Department of Buildings will only accept LL84 data once all fines have been paid in full

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