
When a boiler emergency occurs, every hour of downtime can impact production. In addition to selecting the right temporary boiler, facilities must also comply with local air quality regulations before operating a rental boiler. Navigating the air permitting process can be complex, particularly in California, where emissions requirements vary by district.
Nationwide Boiler simplifies the rental boiler permitting process by providing experienced guidance and the documentation needed to help customers obtain temporary air permits as quickly as possible. Our rental boiler fleet includes a wide range of sizes, capacities, and configurations to meet virtually any steam application, while our team has extensive experience working with California's most stringent air quality districts.
California Air Permit Assistance for Rental Boilers
Operating a temporary boiler typically requires an air permit from the local air district. Application requirements, emissions limits, and approval timelines vary depending on the location and equipment being installed.
Nationwide Boiler has extensive experience supporting customers throughout California, including facilities regulated by:
- South Coast Air Quality Management District (SCAQMD)
- San Joaquin Valley Air Pollution Control District (SJVAPCD)
- Bay Area Air Quality Management District (BAAQMD)
- Sacramento Metropolitan Air Quality Management District (Sac Metro AQMD)
Our team can assist with:
- Determining applicable permitting requirements
- Completing permit applications
- Providing boiler specifications and emissions data
- Supplying equipment documentation required by the permitting agency
- Coordinating with local air districts throughout the approval process
By working with an experienced rental boiler provider, facilities can often streamline the permitting process and reduce delays before startup.
Pre-Permitted Rental Boilers for SCAQMD
Nationwide Boiler maintains a fleet of rental boilers that are pre-permitted for operation within the South Coast Air Quality Management District (SCAQMD). Because these boilers have already been approved for use within this jurisdiction, they can significantly reduce permitting time during emergency situations.
In many cases, these pre-permitted rental boilers can also help expedite permitting in other California air districts with similar emissions requirements, allowing facilities to restore steam production more quickly.
SJVAPCD Temporary Replacement Emissions Unit (TREU) Program
Unlike SCAQMD, the San Joaquin Valley Air Pollution Control District (SJVAPCD) does not offer a pre-permitted rental boiler program. However, facilities may qualify for the district's Temporary Replacement Emissions Unit (TREU) Program, which can help accelerate the installation of a temporary boiler during an equipment failure.
The TREU Program includes an application shield provision that allows a temporary rental boiler to replace an existing permitted boiler while repairs are being completed, without waiting for a temporary operating permit to be issued. This can significantly reduce downtime for facilities facing unexpected boiler outages.

To qualify, the temporary boiler must:
- Have a heat input equal to or less than the boiler it is replacing.
- Not exceed the emissions limits established under the existing permit.
- Operate on-site for no more than 180 days within a 12-month period.
Because eligibility requirements vary by project, Nationwide Boiler can help determine whether the TREU Program is appropriate for your facility and provide the equipment information needed to support the application process.
Simplify Your Rental Boiler Permitting Process
Whether you're responding to an emergency boiler outage, planning a scheduled shutdown, or preparing for a temporary increase in steam demand, Nationwide Boiler can help simplify the California air permitting process. From emissions documentation and permit applications to equipment selection and startup support, our experienced team works closely with customers to help keep projects moving and minimize costly downtime.
Contact Nationwide Boiler today to learn more about rental boiler air permit assistance or to discuss your temporary steam requirements.



