Per Wis. Admin. Code § SPS 305.20, no person may prepare explosive charges or conduct blasting operations unless the person holds a credential as a licensed Class 1 Blaster, licensed Class 2 Blaster, licensed Class 3 Blaster, licensed Class 4 Blaster, licensed Class 5 Blaster, licensed Class 6 Blaster, or licensed Class 7 Blaster or is under the direct supervision of a person who holds a credential as a licensed Blaster in one or more of the categories.
A person who holds a credential as a licensed Class 4 Blaster or is under the direct supervision of a person who holds a credential as a licensed Class 4 Blaster is limited to conducting blasting operation and activities not closer than 2,500 feet to an inhabited building for quarries, open pits, road cuts, trenches, site excavations, basements, underwater demolition or underground excavations.
Application for Licensure
|3091||Application for Class 4 Blaster License|
|3073||Trades Payment Form|
Reinstate a Class 4 Blaster License that has been Expired more than 4 Years
Submit an application, supporting documentation and fee:
- Application for Class 4 Blaster License (Form 3091)
- $78.00 total fee ($15.00 application fee, $30.00 exam fee, $8.00 CIB fee, and $25.00 late renewal fee)