N.Y.C. Admin. Code § 27-430: § 27-430 Sprinklers.

Automatic sprinkler protection complying with the construction provisions of subchapter seventeen of this chapter as required for occupancy group D-1, shall be provided for moderate hazard dry cleaning establishments. In addition, in moderate hazard establishments each dry cleaning unit shall be provided with automatic extinguishing equipment, such as a carbon dioxide system, or a steam jet of not less than three-quarters of an inch at a pressure of fifteen psi.