The state of Hawaii requires the professional engineer stamp to be 1 1/2 inches in diameter. We offer the Hawaii professional engineer stamp in one size; 1 1/2 inches.
In case you have any questions on the Hawaii professional engineer stamp requirements or any other regulatory questions, we have included the Hawaii Engineer boards contact information below for your convenience.
Hawaii State Board:
P.O. Box 3469
Honolulu, HI 96801