The state of North Carolina requires the professional engineer stamp to be 1 3/4 inches in diameter.
In case you have any questions on the North Carolina professional engineer stamp requirements or any other regulatory questions, we have included the North Carolina Engineer boards contact information below for your convenience.
North Carolina State Board:
North Carolina Board of Examiners for Engineers and Surveyors
4601 Six Forks Rd., Suite 310
Raleigh, North Carolina 27609