Firms must be licensed and hold a current Certificate of Authorization to practice professional engineering in the state of Wisconsin (Wis. Stat. 443.08). PE license numbers are not accepted in lieu of the credential.
For general credentialing questions, please email DSPS@wisconsin.gov.
Firms not holding a current Certificate of Authorization should contact:
Safety and Professional Services
Wisconsin Bureau of Business and Design Professions
P.O. Box 8935
Madison, Wisconsin 53708-8935
Phone: (608) 266-5511