Blasting Permit

How Do I Apply?

When is a Blasting Permit Required?

A yearly blasting permit is required by blasting operations to use OR store explosives. This permit is good from January 1 to December 31 each year. Whenever a blasting shot is planned, this office MUST be notified 24 hours in advance as to date and time of EACH SHOT. Any deviations from the permit will be in violation of County ordinances.

Types of Blasting Permits

  • Blasting Permit: permit required for use of explosives
  • Blasting Materials Storage: permit required for the storage (or sale of) explosives

Blaster License

A licensed blaster will be required. Visit our Blaster License Application/Renewal page for more information.

Storage & Sale of Explosives

Blasters Storage and/or Sale of Explosives Permit Application (PDF) must be filed if you will be selling or storing any explosives.


Please contact the St. Charles County Building and Code Enforcement Division at 636-949-7345 or