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SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT 

CLEAN FLEET VEHICLE RULES 

ADVISORY NOTICE TO FLEETS 

SUBJECT TO SCAQMD FLEET VEHICLE RULES 

1186.1, 1191, 1192, 1193, 1194, 1195, and 1196 

IMPLEMENTATION OF THE FLEET RULES FOLLOWING 

MAY 6, 2005 ORDER OF THE U.S. DISTRICT COURT IN 

ENGINE MANUFACTURERS ASSOCIATION ET AL. V. SOUTH COAST 

AIR QUALITY MANAGEMENT DISTRICT 

(Date: July 20, 2005) 

The South Coast Air Quality Management District, following the May 6, 2005 Order 

of the United States District Court, Central District of California, in Engine 

Manufacturers Association et al. v. South Coast Air Quality Management District, is 

taking the steps described below: 

• The Fleet Rules shall be in full force and effect as they apply to state and local 

public entities, including the State of California, counties, cities, and special 

districts. 

• The SCAQMD will not affirmatively enforce the requirements of the Fleet 

Rules as they apply to federal public entities. 

• The Fleet Rules shall be in full force and effect as they apply to private entities 

under contract to state or local public entities, including the State of California, 

counties, cities, and special districts. 

• The SCAQMD will not affirmatively enforce the requirements of the Fleet 

Rules as they apply to private entities that are not under contract to state or 

local public entities. 

• The SCAQMD encourages all fleet operators to purchase clean-fuel vehicles to 

benefit the environment. 

Please review detailed information below regarding the Fleet Rules affecting your 

vehicle fleets. 
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Rules 1191 and 1196 -- Clean On-Road Light-, Medium-, and Heavy-Duty Public 

Fleet Vehicles

Rules 1191 and 1196 shall be in full force and effect, except as they apply to federal 

public entities. 

Rule 1192 – Clean On-Road Transit Buses

Rule 1192 shall be in full force and effect as it applies to public entities, except 

federal public entities. Rule 1192 shall be in full force and effect as it applies to 

private transit operators under contract to a transit agency or government agency, so 

long as such agency is not a federal agency. 

Rule 1193 – Clean On-Road Residential and Commercial Refuse Collection Vehicles

Rule 1193 shall be in full force and effect as it applies to public entities, except 

federal public entities. Rule 1193 shall be in full force and effect as it applies to 

private solid waste collection fleet operators under contract to or operating under an 

exclusive license to a government agency, so long as such agency is not a federal 

agency. The SCAQMD will not take affirmative steps to enforce the requirements of 

Rule 1193 as it applies to private entities that are not under contract to or operating 

under an exclusive license to any state or local public entity. 

Rule 1194 – Airport Ground Access

Rule 1194 shall be in full force and effect as it applies to public entities, except 

federal public entities. To the extent that an airport authority provides services with 

vehicles it owns, the airport authority is considered a public entity. Rule 1194 shall 

be in full force and effect as it applies to private airport fleet operators under contract 

to or operating under an exclusive license to a government agency, so long as such 

agency is not a federal agency. The SCAQMD will not take affirmative steps to 

enforce Rule 1194 as it applies to private entities that are not under contract to or 

operating under an exclusive license to any state or local public entity. 

Affected airport fleet operators who have purchased vehicles with SCAQMD funding 

have contractual obligations that the SCAQMD will continue to enforce, including the 

obligation to operate their vehicles in the South Coast Air Basin. 

Rule 1195 – Clean On-Road School Buses

Rule 1195 shall be in full force and effect as it applies to public entities, except 

federal public entities. Rule 1195 shall be in full force and effect as it applies to 

private school bus fleet operators under contract to a public entity, so long as such 

entity is not a federal agency. The SCAQMD will not take affirmative steps to 

enforce Rule 1195 as it applies to private school bus fleet operators that are not under 

contract to any state or local public entity, such as a school district. 
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Rule 1186.1 – Less-Polluting Sweepers

Rule 1186.1 shall be in full force and effect as it applies to public entities, except 

federal public entities. Rule 1186.1 shall be in full force and effect to the extent that it 

requires public entities to solicit bids for street-sweeping services from vehicle 

operators providing clean-fuel street sweepers. Rule 1186.1 shall be in full force and 

effect as it applies to private fleet operators under contract to a government agency, so 

long as such agency is not a federal agency. 

Rule Exemption Requests

The SCAQMD staff will continue to evaluate exemption requests as provided in each 

Rule and associated guidance documents. 

Fleet Rule Compliance and Enforcement

SCAQMD staff will continue monitoring fleet purchase activities as required under 

the Fleet Rules. Non-compliant vehicle purchases made by private fleets between 

May 26, 2004 and the effective date of this Advisory will not be subject to 

enforcement of the applicable fleet rules. Such private fleets are asked to provide the 

vehicle identification number for those non-rule compliant vehicles purchased during 

this period of time for recordkeeping purposes only. As of the effective date of this 

Advisory, the SCAQMD will resume enforcement actions affecting private fleets 

consistent with this Advisory. 

Effective Date and Subsequent Changes to this Advisory

This Advisory shall be in effect as of August 1, 2005. This Advisory is subject to 

change and may be superceded by subsequent Advisories or Notices. Specifically, 

this Advisory may be changed in the future so as to cover additional private fleet 

operators subject to existing Fleet Rules. Affected fleet operators are advised to 

check periodically with SCAQMD staff or access the SCAQMD’s website at the 

address shown below for further Advisories or Notices. 

There is an overall need to continue to reduce emissions from mobile sources as early 

as possible. Many alternative-fuel engines are inherently cleaner than conventionalfueled vehicles (in particular, diesel-fueled vehicles) relative to nitrogen oxides and 

particulate matter (if the diesel vehicle is not equipped with after-treatment controls). 

Accelerated reductions are needed to meet particulate-matter and ozone air-quality 

standards as early as practicable. 

For More Information

The Fleet Rules are available on the SCAQMD website at: 

www.aqmd.gov/tao/Fleetrules. This Advisory and any additional status updates will 

be provided to affected parties and on the website. If you have questions regarding 

this Advisory’s application to your vehicle fleets, please contact: 
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Mr. Dean Saito, Manager 

Mobile Source Strategies Section 

Science and Technology Advancement 

SCAQMD 

21865 Copley Drive 

Diamond Bar, CA 91765 

(909) 396-2647 

or call or write to the Mobile Source Strategies Section at: 

Hotline: (909) 396-3044 

e-mail: fleetrules@aqmd.gov