Materials Engineering and Testing Services
California Test Methods (CTM)
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:
The California Department of Transportation also publishes Lab Procedures (LPs) to compliment and supplement CTM's. Click on the link below to view these.
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.
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