The state of Indiana requires the professional engineer stamp to be between 1 5/8 and 1 7/8 inches in diameter. We offer the Indiana professional engineer stamp in one size; 1 5/8 inches.
In case you have any questions on the Indiana professional engineer stamp requirements or any other regulatory questions, we have included the Indiana Engineer boards contact information below for your convenience.
Indiana State Board:
Indiana Professional Licensing Agency
Attn: State Board of Registration for Professional Engineers
402 W. Washington Street, Room W072
Indianapolis, IN 46204