Activities that are an unbiased independent evaluation of all the sampling and testing procedures used in the acceptance program. Test procedures used in the acceptance program which are performed in the SHA's central laboratory would not be covered by an independent assurance program. Verification sampling and testing . Sampling and testing performed to validate the quality of the product. Quality Control .
Some States continue to record the sampling and testing data in units of English measurement.
Whenever possible in the database soft conversions were made in parentheses. This in no way sets the metric standard for those States, but simply allows FHWA to comply with its own metrication policy. Conversion by all states is not guaranteed. The Matrac98 database is read only. Send all updates to the Materials Group in the Office of Highway Operations.