The state of New Hampshire requires the professional engineer stamp to be 1 9/16 inches in diameter. We offer the New Hampshire professional engineer stamp in one size; 1 9/16 inches.
In case you have any questions on the New Hampshire professional engineer stamp requirements or any other regulatory questions, we have included the New Hampshire Engineer boards contact information below for your convenience.
New Hampshire State Board:
NH Board of Professional Engineers
NH Joint Board
121 South Fruit Street
Concord, NH 03301