N.Y.C. Admin. Code § 28-308.4.1: § 28-308.4.1 Due dates.

The first energy efficiency reports for covered buildings and for new buildings shall be due in the calendar year with a final digit that is the same as the last digit of the building's tax block number, as illustrated in the following chart:

Last digit of taxblock number

0

1

2

3

4

5

6

7

8

9

Year first EERis due

2020

2021

2022

2023

2024

2025

2026

2027

2028

2029

Owners of covered buildings (i) that are less than 10 years old at the commencement of their first assigned calendar year or (ii) that have undergone substantial rehabilitation, as certified by a registered design professional, within the 10 year period prior to any calendar year in which an energy efficiency report is due, such that at the commencement of such calendar year all of the base building systems of such building are in compliance with the New York city energy conservation code as in effect for new buildings constructed on and after July 1, 2010, or as in effect on the date of such substantial rehabilitation, whichever is later, may defer submitting an energy efficiency report for such building until the tenth calendar year after such assigned calendar year.

Exceptions:

1. A city building constructed after December 28, 2009 shall be added to such schedule within 10 years after the issuance of the first certificate of occupancy for such building. Copies of energy efficiency reports submitted to the department with respect to city buildings that are not submitted by the department of citywide administrative services shall also be submitted to the department of citywide administrative services.

2. A cooperative corporation that owns multiple covered buildings located on different tax block numbers, that is required to file an energy efficiency report for more than one covered building in different calendar years, may consolidate all such energy efficiency reports into one report, disaggregated by covered building, due no later than the year in which the last energy efficiency report would be due, which shall be accepted by the department in satisfaction of the requirements of this section for each covered building included in such consolidated report.