N.Y.C. Admin. Code § 19-101.1: § 19-101.1 Department of design and construction.

Any power granted by this chapter to the commissioner of transportation or the department of transportation related to construction or other work shall be performed by the department of design and construction in accordance with chapter fifty-five of the charter unless otherwise directed by the mayor pursuant to such chapter. Where the commissioner of transportation or the department of transportation is authorized by this chapter to promulgate specifications relating to construction or other work, such promulgation shall be done in consultation with the department of design and construction.