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Diesel Regulations Affecting Public Fleets. Presented for the Public Fleet Supervisors Association January 19, 2006 Diana Acevedo. Agenda. Introduction Background on ARB’s Diesel Risk Reduction Plan Overview of the On-Road Diesel Public Fleet ATCM Upcoming Regulations Questions.
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Diesel Regulations Affecting Public Fleets Presented for the Public Fleet Supervisors Association January 19, 2006 Diana Acevedo
Agenda • Introduction • Background on ARB’s Diesel Risk Reduction Plan • Overview of the On-Road Diesel Public Fleet ATCM • Upcoming Regulations • Questions
Introduction Diana Acevedo Staff Engineer/CH2M HILL dacevedo@ch2m.com
Background • In 1998, the California Air Resources Board (ARB) identified particulate matter (PM) from diesel engines as a toxic air contaminant (TAC) • Over 1 million on-road & off-road vehicles • 16,000 stationary engines • 50,000 portable engines
Background • Why is ARB going after diesel PM? • Cancer risk of over 500 cases per million people (on a statewide basis) • Even higher risk for urban areas • South Coast Air Basin: the cancer risk is estimated to be 1000 cases per million people • Compared to other air toxics that ARB has regulated, diesel PM accounts for 70% of total ambient air risk
Background • To address Diesel PM, ARB adopted the Diesel Risk Reduction Plan (DRRP) in 2000 • Goal: significantly reduce diesel PM emissions • Three components: • Stringent standards for new engines • Retrofit requirements for existing engines • Control sulfur-content of diesel fuel
Background • As part of the DRRP, ARB recommended several air toxic control measures (ATCMs) • ATCMs already adopted: • Transit buses • Solid waste collection vehicles • Stationary engines • Portable equipment • Transportation refrigeration engines • Idling controls • 2007 model year emission standards for heavy-duty trucks and off-road equipment • Ultra-low sulfur diesel fuel by mid-2006
Overview • At the December 8, 2005 Board hearing, ARB adopted the public fleet ATCM • Continuation of the work directed by the DRRP • Does not apply to any public vehicles that were already covered in previous ATCMs: • Solid waste collection vehicles • Public transit vehicles • School buses
Overview • On-road diesel heavy-duty vehicles with a model year from 1960-2006 • Manufacturer’s Gross Vehicle Weight greater than 14,000 lbs • Owned, leased, or operated by any municipality or utility company
Regulatory Approach • Requires that the Best Available Control Technology (BACT) be installed • Vehicle-by-vehicle basis • Phased-in compliance schedule based on engine model year
BACT Definitions • Replace or repower vehicle with an engine certified to the new 0.01 g/bhp-hr PM standard for new 2007 model year engines (catch: not available until 2007); • Replace or repower vehicle with an engine certified to a 0.1 g/bhp-hr standard AND install the highest level verified Diesel Emission Control Strategy (DECS); • Replace or repower vehicle with an alternative-fuel, heavy-duty pilot-ignition, or gasoline engine; or, • Install the highest level verified DECS on an existing engine.
BACT (Cont’d) • DECS devices are verified by ARB to one of three levels: • Level 1 – greater than 25% reduction • Level 2 – greater than 50% reduction • Level 3 – greater than 85% reduction • Responsibility of owner to find highest level of DECS for each engine • Note that Level 1 DECS is not allowed on Group 1 engines (1960-1987) • except for low population counties
Compliance Schedule • Compliance Deadline Extensions: • Early implementation of BACT • Municipalities located in low-population county (less than 125,000 people) • No verified DECS exists • Dual-fuel and bi-fuel engines • Engine near retirement • Use of experimental DECS
Early Implementation Extension • Group 1: If BACT is applied to 50% of vehicles in this group before Dec 31, 2007, then ARB will allow a delay for 100% compliance to Dec 31, 2012 • Similar extension for Group 2
Early Implementation Extension • Because early implementation is voluntary, municipalities may be able to apply for, and receive, incentive funding • For more information on the Carl Moyer Program, go to: • http://www.arb.ca.gov/msprog/moyer/moyer.htm
Engine Near Retirement Extension • Retirement: • Sale outside of California • Scrappage of the engine • Conversion to a low-usage vehicle • If engine is within 1 year of retirement • Get 1 year extension
Exemption • “Low Usage Vehicle” • Operated fewer than 1000 miles or 50 hours per year • 5-year rolling average based on mileage or engine hours of operation • Must still comply with record-keeping requirements, but does not require BACT for these vehicles
More Information • More information can be obtained at: http://www.arb.ca.gov/msprog/publicfleets/ publicfleets.htm • The regulation can be tracked at: http://www.arb.ca.gov/regact/dpmcm05/ dpmcm05.htm
Diesel Off-Road Equipment • Proposed rule • Aiming for public hearing and consideration by Board in late summer or early fall of 2006 • Applies to diesel off-road equipment >25 hp • Used in construction, mining, and industrial operations • Preliminary Regulatory Concepts posted September 30
Diesel Off-Road Equipment • Approaches include: • Accelerated turnover to cleaner engines • Retrofit with BACT • Idling limitations • Registration, record keeping, reporting, and/or inspections • Next workshop is January 24 in Sacramento
Off-Road LSI Equipment Rule • LSI – Large Spark Ignition equipment • Includes forklifts, street sweepers, generators, large turf-care equipment and other equipment • Gasoline and propane powered • New and in-use equipment > 25 hp • ARB issued a “Notice of Decision Not to Proceed” • Regulatory clock ran out • But it’s just a delay – will still happen
Useful Websites • Diesel Risk Reduction Plan • http://www.arb.ca.gov/diesel/dieselrrp.htm • Public Fleets • http://www.arb.ca.gov/msprog/publicfleets/publicfleets.htm • http://www.arb.ca.gov/regact/dpmcm05/dpmcm05.htm • Off-Road Diesel Equipment • http://www.arb.ca.gov/msprog/ordiesel/ordiesel.htm • Off-Road LSI Equipment • http://www.arb.ca.gov/msprog/offroad/orspark/orspark.htm