This is to certify that the materials listed above are in conformance with the governing Texas Department of Transportation specification(s). This is to also certify that representative samples of the listed materials have been tested and the test results (species of timber, treatment type, treatment retention) conform to the requirements of the applicable specifications. Copies of the test results are available for review at the Treater. Copies of other pertinent documents are available for review at the Supplier (when applicable) and at the Treater.