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Materials Engineering and Testing Services - California Test Methods

Welcome to the California Department of Transportation (Caltrans) Transportation Laboratory (TransLab) HomePage for the California Test Methods (CTM).

You may view the CTMs by clicking on a link for any of the following categories:

100 - 199 Calibration, Nuclear Gauges, Sampling, Materials Report
200 - 299 Soils, Aggregates, Compressive Strength, Moisture
300 - 399 R-Values, Bituminous Mixtures, Asphalt Content
400 - 499 Cement Treated Bases, Lime, Chloride Content
500 - 599 Concrete, Freeze-Thaw, Admixtures
600 - 699 Reflectors, Wire, Traffic Signals, Steel, Tensile Strength

Caltrans Laboratory Safety Manual


All CTMs are in Adobe PDF.  * Acrobat Reader, is required to view these documents.
We strongly recommend that you configure your browser to link directly to the Acrobat Reader to make viewing these CTMs a seamless process.

The California Department of Transportation also publishes Lab Procedures (LPs) to compliment and supplement CTM's. Click on the link below to view these.

Office Roadway Materials Testing Lab Procedures

The California Department of Transportation also publishes other test methods that are not official California Test Methods. Click on the link below to view these other test methods.

Other Test Methods

The 3-volume "Materials Testing Manual" is no longer in print. Any CTM you may need in hardcopy form can be printed directly from your web browser. To order other Caltrans publications, please contact the Caltrans Publications Unit, 1900 Royal Oaks Drive, Sacramento, CA 95815, (916) 445-3520 or visit their web site: Caltrans Publications Unit

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METS_webmaster@dot.ca.gov