N.Y.C. Admin. Code § 28-104.3: § 28-104.3 Amended construction documents.

Subject to the time limitations set forth in this code, amendments to approved construction documents shall be submitted, reviewed and approved before the work or equipment is completed; and such amendments when approved shall be deemed part of the original construction documents. The department may allow minor revisions of construction documents to be made and submitted to the department after the completion of work but prior to sign-off of the work. All other revisions of construction documents shall be submitted and approved prior to commencing the work effectuating such revisions.