Copper State Rubber holds quality certifications from the American Petroleum Institute as well as the International Standards Organization (ISO).  You can view the certificates for each of these certifications by clicking on the links below.  If you have questions about any other certifications held by Copper State Rubber, please contact us at 713-644-1491.

American Petroleum Institute
certificate valid 2008 - 2011
[view certificate]

ISO 9001:2000
certificate valid 1994 - 2009
[view certificate]