Whenever this code or the rules of the department requires the use of an approved material, such material shall not be used without the prior approval of the commissioner for such use and may be used only to the extent set forth in such approval.
Except as otherwise specifically limited by this code, the provisions of this code are not intended to prevent the installation of any material or to prohibit any alternative engineered design or method of construction not specifically prescribed by this code, provided that the use of such alternative material has been previously approved by the commissioner and may be used only to the extent set forth in such approval. The use of an alternative material, design, method of construction or equipment shall be approved where the commissioner finds that the proposed design is satisfactory and complies with the intent of the provisions of this code, and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in this code in quality, strength, effectiveness, fire resistance, durability and safety.
Whenever this code or the rules of the department requires that material used be listed or labeled to a standard, material that is so listed or labeled may be used in accordance with such list or label without the prior approval of the commissioner. However, the commissioner reserves the right to require that information be submitted with regard to the testing and evaluation of any material so listed or labeled including but not limited to inspection certificates, test or evaluation reports, analysis, computations or other information used to determine that the material so listed or labeled complies with the applicable standard.
Whenever this code or the rules of the department requires that material be listed or labeled to a standard and material proposed to be used is not so listed or labeled, the use of such material shall be subject to prior approval by the commissioner and such material shall be used only to the extent set forth in such approval.
The use of used material that meets the requirements of this code for new material is permitted unless otherwise provided in this code. Used equipment and devices shall not be reused without the prior approval of the commissioner and may be used only to the extent set forth in such approval.
Materials that were previously approved by the board of standards and appeals or by the department before July 1, 2008 may continue to be used to the extent that such approval is not inconsistent with the requirements or standards of this code, unless specifically amended or repealed by the commissioner.