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Portable Equipment Registration

The District’s Portable Equipment Registration program gives owners and operators of portable equipment the option of registering certain types of equipment as an alternative to permitting.  Registration provides an exemption from permitting requirements for equipment that would otherwise require a permit to operate.  For equipment that meets the eligibility requirements, registration is generally simpler and less costly than permitting.  Under certain circumstances, operators may even be able to use equipment registered with the District in other participating air districts.

Eligibility for Portable Equipment Registration

The most common types of portable equipment registered with the District are gas and diesel-fueled I.C engines.  Portable engines used in well drilling and servicing, power generation; pumping; gas compression; pile driving; welding; cranes; and woodchipping are eligible for registration.  In addition to engines, portable equipment used for abrasive blasting, concrete batching, and rock, sand, or gravel processing may also be eligible for registration.  

To be registered as portable equipment, a unit must meet also the definition of “portable emissions unit” in District Rule 2280 (Portable Equipment Registration).  This definition requires that the equipment be truly portable (capable of being moved from one location to another).  It also requires that the unit not reside in one location (other than a storage location) for more than six months. Equipment may not be registered if it replaces or supplements an ongoing function of a permitted stationary source or if it operates for essentially the full annual length of a stationary source operation. Please refer to District Policy SSP-2150 (Allowed Operation of Portable Registered Equipment at a Stationary Source) to determine eligibility.

Requirements for Portable Equipment

District Rule 2280 includes operating requirements for registered portable equipment.  These requirements were designed to ensure that operation of portable equipment does not result in excessive air emissions.The CA Airborne Toxic Control Measure for Diesel-Fueled Portable Engines (ATCM) requires all existing portable engines to be certified to Tier 1, 2, or 3 U.S. EPA/ARB off-road engine standards by 2010. New portable equipment must be certified to the latest available tier certification level. Please contact Suzanne Medina at 559-230-5883 if you have any questions regarding portable equipment requirements.

The specific technology requirements in Rule 2280 vary with equipment type.  In most cases various options are provided.  One requirement for existing diesel engines, for example, is that they are required to either meet a ten grams per horsepower hour emission limit for oxides of nitrogen, or have their timing retarded four degrees from standard.  Other requirements apply for other pollutant and equipment types. Each registration issued by the District includes the conditions necessary to ensure that the equipment operates in compliance with requirements of District rules. 

CARB Portable Equipment Registration

For information on the California Air Resources Board's Portable Equipment Registration Program, click here

Applying for Portable Equipment Registration

Application forms and detailed instructions for registration may be downloaded from this site (link) or obtained at any District office.  Further information may also be obtained from Technical Services Staff at the Districts Fresno Office.