Certain equipment that would otherwise require a permit according to
District Rule may instead be registered with the District.
This page contains information on forms, fees and other important
information for obtaining a District registration for this equipment
allowing operation in San Diego County. For information on obtaining a
registration valid throughout the state of California including San
Diego County, please see the California Air Resources Board (CARB) Portable
Equipment Registration Program (PERP) page.
Equipment that is eligible for registration is described in District
Rule 12 and Rule 12.1 including:
Equipment eligible for registration under Rule 12
Stationary emergency internal combustion engines (Installed prior
to November 15, 2000)
Stationary engines rated less than or equal to 200 bhp operated for
fewer than 200 hours per calendar year (Installed prior to November
Asphalt roofing kettles and day tankers
Equipment eligible for registration under Rule 12.1 (portable equipment):
Internal Combustion Engines
Rock Crushing and Screening Equipment
Concrete Batch Plants
Unheated Asphalt Pavement Crushing/Recycling
Please note that equipment which operates as part of a stationary
source may require a District permit instead of a registration
with the District or CARB. The California Air Pollution
Control Officers Association (CAPCOA) has prepared guidance on acceptable uses of portable equipment.
If you have additional questions please do not hesitate to contact the District.
12 and Rule 12.1 require the submittal of the
District's general permit application form and supplemental form(s)
that apply to the equipment being registered as listed below. Some
equipment types have only a certificate form. This form contains
applicable requirements for the equipment type and will be
stamped/signed by a District engineer and the copy given to you will
serve as our registration until a final version is mailed to you.
Other equipment types have additional supplemental forms that must be
included with your application for the District to evaluate whether
the equipment meets the requirements for registration.
General Application Word PDF ***REQUIRED
FOR ALL APPLICATIONS***
Equipment Specific Forms - Rule 12 Equipment Types
Asphalt Roofing Kettles:
Roofing Kettle Certificate Form (PDF)
Drill Certificate Form (PDF)
Existing Stationary Internal Combustion Engines - Installed
prior to November 15, 2000 (select correct form based on
engine type and emission level. Generally engines fueled by
gasoline, natural gas or propane fuel use spark ignition.):
Existing Stationary Spark Ignition Engine (emergency):
Ignition Engine (emergency) Certificate Form (PDF)
Existing Stationary Spark Ignition Engine (<200bhp, <200
Ignition Engine (<200 bhp, <200 hr/yr) Certificate Form (PDF)
Existing Stationary Diesel Engine (emergency, PM >
Diesel IC Engine (emergency, PM> 0.4 g/bhp-hr) Certificate Form (PDF)
Diesel IC Engine Supplemental Form (PDF)
Existing Stationary Diesel Engine (PM <=0.4 g/bhp-hr):
Diesel IC Engine (emergency, PM<=0.4g/bhp-hr) Certificate Form (PDF)
Diesel IC Engine Supplemental Form (PDF)
*If you do not know the particulate emission level of your engine or
emission data indicates emissions above 0.4 g/bhp-hr, select the first
form which allows 20 hours per year for maintenance and testing
operations. If there is documentation that PM exhaust emissions are
less than or equal to 0.4g/bhp-hr, than the engine may be operated up
to 30 hours per year for maintenance and testing purposes and the form
labeled (PM<=0.4g/bhp-hr) should be completed and the data
demonstrating the emission level should be attached to the application.
Equipment Specific Forms - Rule 12.1 (portable) Equipment Types
Portable Unconfined Abrasive Blasting
Abrasive Blasting Certificate Form (PDF)
Unconfined Blasting Supplemental Form (PDF)
Portable Confined Abrasive Blasting
Confined Blasting Certificate Form (PDF)
Confined Blasting Supplemental Form (PDF)
Portable Sand and Aggregate Screening (no Crushing)
Sand and Gravel Screening Certificate Form (PDF)
Sand and Gravel Screening Supplemental Form (PDF)
Portable Rock Crushing (may include Screening)
Rock Crushing Certificate Form (PDF)
Rock Crushing Supplemental Form (PDF)
Portable Concrete Batch Plants or Similar
Concrete Batch Plant Certificate Form (PDF)
Concrete Batch Plant Supplemental Form (PDF)
Portable Spark Ignition Engine (typically gasoline, natural gas,
Spark Ignition IC Engine Certificate Form (PDF)
IC Engine Supplemental Form (PDF)
Portable Compression Ignition (Diesel) Fired Engine
(non-emergency) meeting current tier*
(non-current tier) engines, please review guidance
document before applying
Diesel-Fired IC Engine Certificate Form (PDF)
IC Engine Supplemental Form (PDF)
Portable Compression Ignition (Diesel) Fired Engine (emergency or
Diesel-Fired IC Engine (Emergency or Low-Use) Certificate Form
IC Engine Supplemental Form (PDF)
Asphalt Pavement Crushing/Recycling
Pavement Crushing/Recycling Certificate Form (PDF)
Crushing/Recycling Supplemental Form (PDF)
Additional Supplemental Forms Required for some Portable
Equipment Compliance Checklist
to Registration or Registered Emission Unit
of Residency for Portable IC Engines (34X-Series)
Engine Timing Retard Certification Form (34X-Series)
Each application submitted must include the general application
form, the applicable equipment specific certificate form and any
supplemental forms listed under the equipment type. For portable
engines, the District may require one of the special supplemental
forms listed above. For modifications to existing registrations,
please include a completed modification form as listed above. Please
contact the District prior to submittal to determine if any of these
forms is required.
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This section contains estimated fees required for registration
The correct fee, as shown in the table(s) below, must be submitted
with your application in order for it to be accepted. Please
note that the fees listed in these tables are estimated and the final
fee may be more or less than this amount based on time and materials
spent processing the application. The District maintains work records
for this purpose.
Portable Abrasive Blasting
Portable Rock Drill
Portable Screen Set
Portable Rock/Concrete Crushing System
Portable Concrete Batch Plant
Stationary Engines (Eligible for Rule 12
If you are unsure of the correct fee contact the District (see
bottom of page) to obtain an application fee estimate to confirm the
fees required for application submittal. Please note that an
additional fee may also apply depending on the method of payment. A
breakdown of how the application fee(s) are determined can
be seen here. Additional information can be found in District Rule 40.
These fees may be paid by check payable to "Air Pollution
Control District" or by credit card (Visa, MasterCard, Discover,
and American Express).
If you choose to email or fax your application and intend on paying
with a credit card, you must provide contact information (name and
phone number) so that the District can complete payment.
Please note that credit card payments are assessed a transaction fee
of 2.2% that is charged by the credit card provider.
How to Submit Application Packet
10124 Old Grove Rd
San Diego, CA 92131-1649
For the fastest processing, applications may also be hand delivered
to the mailing address listed above.
The District will act on
complete applications as soon as possible but at most
within 90 days. The engineer assigned to your application will review
it and contact you within 30 days of receipt to confirm that it is
complete or request additional information. For most complete
applications that comply with District Rules, the District will sign
and stamp the initial registration certificate within 1 business day
of receipt; however, more complex applications may take additional time.
Ensuring your application is complete is the best way to reduce
processing time. Complete emissions data is the most important factor
in minimizing application processing time and iterative information
requests. If you have any questions about what information is
required, please contact the District using the information at the
bottom of this page. Learn more
about the rules that govern application processing time.
Sign up for Citizen
Access to get up to date information on the status of your application.
for Stationary Compression Ignition Engines (Stationary ATCM) -
Applies to stationary engines that combust diesel fuel, so may apply
to engines registered under Rule 12. Common requirements of the
Stationary ATCM include limiting testing and maintenance operation and
keeping records of operation and maintenance.
Portable Engines (Portable Engines) - This rule applies to
engines that combust diesel fuel and are considered portable under the
rule, so may apply to engines registered under Rule 12.1. Common
requirements of the Portable ATCM include purchasing a current tier
engine and meeting fleet averaging standards.
NESHAP - This EPA rule applies to both spark ignition and
compression ignition stationary engines, so may apply to engines
registered under Rule 12. Typical requirements of this rule include
maintenance and operating requirements. The District will evaluate
your application and include any applicable requirements of this rule
in an authority to construct.
NSPS Subpart OOO - This EPA rule applies to any
portable rock crushing plants with a maximum processing rate of more
than 150 tons per hour including asphalt crushers/recyclers. If your
registered equipment will exceed this threshold, contact the District
prior to submittal to determine potential requirements and application
The engineer assigned to an application will review the proposed
equipment to determine the requirements of these regulations that may
apply and include them as conditions in your authority to construct.
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Several District rules may apply to your equipment. General rules
that may apply to your equipment include Rules 50, 51, 52, 53, 54 and 62.
12 and Rule
12.1 contain specific requirements for each equipment type being
registered. Requirements can be found in the applicable rule and are
also listed on the certificate application for the equipment type. A
complete listing of the District's rules can be found here.
Calculation Procedures and Additional Resources
These procedures may be utilized to ensure that your equipment
meets all applicable rules and regulations and is eligible for
registration prior to application submittal.
Blasting Emission Calculation Procedures - This page contains
procedures to be used for calculating emissions from abrasive blasting equipment.
Products Industry Calculation Procedures - This page contains
procedures that should be used to calculate emissions from equipment
such as crushers, screens, conveyers, storage piles and other mineral
products industry related emissions associated with the registered
Equipment Calculation Procedures - This page contains procedures
that should be used to calculate emissions from registered engines.
AP-42 - An
alternative compilation of emission factors and calculation procedures
prepared by the EPA that may be utilized by the District in some
situations for some equipment types.
Information - This page contains spreadsheets with emission
factors for engines certified by the US EPA. Data is available for
most diesel engines and certified spark-ignition engines and can be
looked up by model year and EPA engine family name.
Executive Orders - Use this link to obtain emission factors for
certified diesel engines from the California Air Resources Board
(CARB). Data can be looked up by engine manufacturer, model year and
EPA engine family name.
Engine Compliance Information - Contains useful information
prepared by the District for staying in compliance with stationary
engine permit requirements.
and Compliance Policies - See this page for compliance related
forms (including reporting form templates) and compliance advisories
that may be relevant to your equipment.
Portable Equipment Compliance Information -
Helpful information for determining whether your equipment is
considered portable and other useful compliance information for
Need Help? Have Questions?
District or call (858) 586-2600 and ask for the duty engineer.
More in depth help and site visits can be performed by the District
Small Business Assistance Program Coordinator who can be reached at