---
kind: "section"
citation: "16 C.F.R. § 460.8"
title: "16"
number: "460.8"
heading: "R-value tolerances."
url: "https://uscodex.org/cfr/16/460.8"
---

# §460.8. R-value tolerances.


If you are a manufacturer of home insulation, no individual specimen of the insulation you sell can have an R-value more than 10% below the R-value shown in a label, fact sheet, ad, or other promotional material for that insulation. If you are not a manufacturer, you can rely on the R-value data given to you by the manufacturer, unless you know or should know that the data is false or not based on the proper tests.


## Notes

### Amendments

[70 FR 31275, May 31, 2005]

### Authority

Authority: 15 U.S.C. 41 et seq. (38 Stat. 717, as amended). Appendix A also issued under 46 FR 22179 (April 16, 1981); 46 FR 22180 (April 16, 1981); 48 FR 31192 (July 7, 1983).

### Source

Source: 44 FR 50242, Aug. 27, 1979, unless otherwise noted.

### Amendments

[70 FR 31275, May 31, 2005]