N.Y.C. Admin. Code § 28-311.3: § 28-311.3 Sub-meters required for covered tenant spaces.

On and after January 1, 2025, the electrical consumption of each covered tenant space shall be measured by one or more sub-meters. Sub-meters shall be installed in existing covered tenant spaces by the owner or the lessor of such space on or before January 1, 2025 and thereafter as new covered tenant spaces are created within the building. If the covered tenant space is a floor with multiple tenancies, each tenancy that is 5,000 gross square feet (465 m

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) or less shall (i) have a separate sub-meter, (ii) share a sub-meter with other tenant spaces on the floor, or (iii) share a sub-meter covering the entire floor.

Exception: Covered tenant space for which the electrical consumption within such space is measured by a meter dedicated exclusively to that space.