N.Y.C. Admin. Code § 19-114: § 19-114 Excavations or embankments near landmarks.

The commissioner shall cause a covenant to be incorporated in all contracts hereafter made by him or her for constructing, regulating or repairing any street, requiring the contractor to obtain the permit required pursuant to section 3-508 of the code and to take such other precautions for the care and preservation of monuments, bolts and other landmarks as the commissioner may direct.