N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 4-1.9
Subject to action by the commissioner as provided below, boiler components bearing by impression, attached metal plate or other legible and durable means a name, mark, letter, number or symbol identifying them as the product of a specific manufacturer, together with letters or symbols indicating manufacture in accordance with a code or standard, official or unofficial, applying by law or commonly applied voluntarily in the industry, e.g., ASME, AGA, or UL, shall constitute standard components. The commissioner, however, may at his discretion inquire at any time into the quality and manufacture of such components, the standards of workmanship and quality control prevailing at the place of manufacture, and the nature of the codes, standards, rules or regulations, official or unofficial, relating to the manufacture of such components, and the course and practice of the manufacturer in respect to adherence to such codes, standards, rules and regulations; and if upon such inquiry sufficient evidence is not made available to him to warrant his findings that the use of such component or components will not constitute, cause or create a boiler defect, he may by order designate the same as nonstandard. A boiler component specified in such an order shall constitute a nonstandard component. Such order shall be a public record.
N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 4-1.9