N.Y.C. Admin. Code § 28-304.6.4.2: § 28-304.6.4.2 Category testing when a witnessing agency is required.

When a witnessing agency is required to witness category tests listed in Table N1 of ASME A17.1, as modified by chapter K1 of appendix K of the New York city building code, the performing inspector shall, on the day of each test complete the category test report, documenting all violating conditions, if any, and affix his or her signature; and provide a copy of such report to the owner or owner's representative with the witnessing agency inspector signature. The witnessing agency inspector shall, on the day of each test: (i) review and confirm the category test report and also affix his or her signature to it; (ii) confirm that a copy of such report was provided to the owner or owner's representative; and (iii) affix the date and his or her signature over a stamp identifying his or her approved elevator agency and his or her approval number on the inspection certificate issued by the department attesting to the completion of items (i) and (ii).