The state of California requires the professional engineer stamp to have a minimum size of 1 1/2 inches. We offer the California professional engineer stamp in two sizes; 1 1/2 inches and 1 5/8 inches.
In case you have any questions on the California professional engineer stamp requirements or any other regulatory questions, we have included the California Engineer boards contact information below for your convenience.
California State Board:
Board for Professional Engineers, Land Surveyors, and Geologists
2535 Capitol Oaks Drive, Suite 300
Sacramento, CA 95833-2944