The state of Missouri requires the professional engineer stamp to be 1 3/4 inches in diameter. We offer the Missouri professional engineer stamp in one size; 1 3/4 inches.
In case you have any questions on the Missouri professional engineer stamp requirements or any other regulatory questions, we have included the Missouri Engineer boards contact information below for your convenience.
Missouri State Board:
Board for Architects, Professional Engineers, Professional
Land Surveyors and Professional Landscape Architects
3605 Missouri Boulevard, Suite 380
Jefferson City, MO 65109