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Local Law 85

New York City Energy Conservation Code (NYCECC)

As a result of adopting the NYC Energy Conservation Code (NYCECC), the city now requires buildings to meet the most current energy code for any renovation or alteration project that affects more than 50% of the building system.

NYCECC General Requirements

The work must fulfill the current standards of the NYC Energy Conservation Code (NYCECC) at the time of construction for all additions, changes, renovations, and repairs to an existing structure or building system. The following are some instances of general design conditions necessary to consider for NYECC.

  • Building Envelope
  • Roof & ceiling insulation
  • Windows, doors and skylights product rating
  • HVAC system
  • Heating, Lighting, and Electrical Power Systems


The Department of Buildings requires a professional statement signed by a registered design expert (professional engineer, PE, or registered architect, RA) or lead energy professional declaring that the plans and specifications as installed comply with the New York City Energy Conservation Code.

An energy study proving the design’s compliance with the NYCECC, as well as supporting documents, must be included with the project’s first application.

How USL Technology Can Help:

With the project’s first application, an energy analysis demonstrating the design’s compliance with the NYCECC, as well as supporting papers, is required.

USL Technology is a registered filing representative with the New York City Department of Buildings (D.O.B.) and represents owners, developers, engineers, and architects on new construction, additions, and alterations of commercial, residential, and mixed-use building projects.

The project team ensures that the identifying elements used in the energy analysis are included in the building designs, so that each wall type, window type, HVAC unit, lighting fixture, and other feature can be clearly linked to its placement in the drawings.

Most residential and commercial projects require an Energy Analysis. The Energy Analysis may be presented to the D.O.B in one of these formats:

  • RESCheck
    Residential Code Compliance
  • COMCheck
    Commercial Code Compliance
  • Energy Plus or DOE2
    based energy modeling software (Residential or Commercial)
  • Form EN1
    for reporting to the Department of Buildings or in Energy Code Tabular Analysis (pdf) format

Book A Consultation to learn more how we can help you comply with NYC local laws and connect you with registered design experts.