Dwelling unit

For the purposes of applying the provisions of this Chapter to philanthropic or non-profit institutions with sleeping accommodations and to long-term care facilities, the term “dwelling unit” shall include dwelling units and rooming units, as set forth in the New York City Housing Maintenance Code.

Vertical circulation core

A "vertical circulation core" is an elevator core (consisting of one or more elevators) or a central stairwell in a non-elevator building.