Applicable standards. (1) All polystyrene foam insulation board shall be designed, manufactured, and tested in compliance with the American Society for Testing and Materials (ASTM) standard C-578-92, Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation.

This standard has been approved by the Director of the Federal Register for incorporation by reference. The standard is available from the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103. This standard is also available for inspection at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

Labeling. Under the procedures set forth in § 200.935(d)(6) concerning labeling of a product, the administrator's certification of compliance with the applicable standards and the type of board are required to be on the certification label issued by the administrator to the manufacturer.

Periodic tests and quality assurance inspection. Under the procedure set forth in § 200.935(d)(8), testing and inspection shall be conducted as follows:

At least every six months, the administrator shall visit the manufacturer's facility to select a sample of each certified polystyrene foam insulation board for testing by a laboratory approved by the administrator.

The administrator also shall review the quality assurance procedures every six months to assure that they are being followed by the manufacturer.