NSPS (Subparts IIII & JJJJ) Information
Requirements for Stationary Internal Combustion Engines
All owners or operators of a stationary internal combustion engine meeting the applicability criteria as outlined in Subpart IIII or Subpart JJJJ must submit a construction permit to Polk County - AQD. The manufacturer's nameplate rated capacity at full load shall be defined as the brake horsepower output at the shaft. All engines with a BHP ≥ 100 must submit a construction permit application.
If a facility determines it does not have the required permit for an engine, a complete construction permit application and notification must be submitted.