N.Y.C. Admin. Code § 28-103.10: § 28-103.10 Supporting documentation for materials.

Whenever this code or the rules of the department permits the use of material regulated in its use by this code or the 1968 building code without the prior approval of the commissioner, the commissioner may, in the interest of public safety, require the submittal of supporting documentation that any material used or proposed to be used complies with the applicable code standard for such use. Such supporting documentation may consist of but shall not be limited to certification documents of an approved agency, test reports, analysis, computations or other evidence of such compliance.