24 C.F.R. § 200.947
§ 200.947 Building product standards and certification program for polystyrene foam insulation board. (24 CFR Part 200)
Operative Text
(a) 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. (2) 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. (b) 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. (c) Periodic tests and quality assurance inspection. Under the procedure set forth in § 200.935(d)(8), testing and inspection shall be conducted as follows: (1) 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. (2) The administrator also shall review the quality assurance procedures every six months to assure that they are being followed by the manufacturer.
Under 24 CFR Part 200 § 200.947, polystyrene foam insulation board used in HUD-related construction must meet the ASTM C-578-92 standard for rigid cellular polystyrene thermal insulation, covering how the product is designed, manufactured, and tested. Each certified board must carry a label showing the administrator's certification of compliance and the board type. To maintain certification, an independent administrator must visit manufacturing facilities and review quality assurance procedures at least every six months, with product samples sent to an approved laboratory for testing.
Plain English — not legal advice.
Property owners and managers working on HUD-covered projects should verify that any polystyrene foam insulation board specified or installed carries the certification label required by 24 CFR Part 200 § 200.947, confirming both ASTM C-578-92 compliance and the board type. Compliant operators typically request documentation from suppliers showing that the product's manufacturer is enrolled in an active certification program with a HUD-recognized administrator. Keeping records of product labels and supplier certifications on file supports smooth inspections and helps demonstrate that materials meet federal building product standards.
General guidance for property managers — not legal advice for your specific situation. Consult an attorney for advice on your case.
Under 24 CFR Part 200 § 200.947, residents living in HUD-assisted or FHA-insured housing benefit from a federal requirement that polystyrene foam insulation board used in their buildings meet established safety and performance standards, backed by ongoing manufacturer inspections and laboratory testing. If a tenant has concerns that substandard or uncertified insulation materials were used in their building, they may raise the issue with their local HUD field office or a tenant-rights organization familiar with federal housing standards. Keeping notes about any visible building material concerns and referencing § 200.947 when communicating with housing authorities can help document the issue for review.
General guidance for tenants — not legal advice for your specific situation. Consult a tenant-rights organization or attorney for advice on your case.
Generated September 4, 2026 — auto-generated, not yet human-reviewed. See /transparency for methodology.
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