1 FINAL REGULATION ORDER

REGULATION FOR IN-USE OFF-ROAD DIESEL-FUELED FLEETS VEHICLES

Note: Proposed modifications are shown in u nderline to indicate additions and strikeout to indicate deletions, compared to the preexisting regul atory language.

Amend sections 2449, 2449.1, 2449.2, and repeal se ction 2449.3 in title 13, article 4.8, chapter 9, California Code of Regul ations (CCR) to read as follows:

§ 2449. General Requirements for In -Use Off-Road Diesel-Fueled Fleets

(a) Purpose

The purpose of this regulation is to reduce ox ides of nitrogen (NOx), diesel particulate matter (PM), and other criteria pollutant em issions from in-use off-road diesel-fueled

vehicles.

(b) Applicability

(1 ) Except as provided in subsection (b)(2 ) below, this regulation applies to any person, business, or gover nment agency who owns or oper ates within California any vehicles with a diesel-fueled or alternative diesel fueled off-road compression-ignition engine with maxi mum power (max hp) of 25 horsepower (hp) or greater provided t hat the vehicle cannot be registered and driven safely on-road or was not designed to be driven on-r oad, even if it has been modified so that it can be driven safely on-road.

(2) The regulation also applies to the following:

(A) Workover rigs, as defined in sect ion 2449(c)(62), are subject to this regulation. (B) Both engines of two-engine cranes, and two-engine water-well drilling rigs, as defined in sections 2449(c)(56) and (c )(58), respectively, that contain an auxiliary engine having a rated brake hp of 50 or greater ( ≥ 50 bhp) are subject to this regulation. (C) Both engines of two-engine vehicles, as defined in section 2449(c)(57), that were designed to be driven either on-r oad or off-road and contain an auxiliary engine ≥ 50 bhp are subject to this regulation provided that: 1. The two-engine vehicle is not already subject to the Fleet Rule for Public Agencies and Utilities, title 13, CCR, sections 2022 and 2022.1; 2. The two-engine vehicle is not a two-engine sweeper, as defined in the Truck and Bus regulation, title 13, CCR, section 2025; and 3. The two-engine vehicle does no t have a Tier 0 auxiliary engine. (D)This regulation applies to any person who sells a vehicle subject to this regulation within California.2 (E) Persons who provide financing in the fo rm of “finance leases,” as defined in

California Uniform Commercial Code Sect ion 10103(a)(7), fo r in-use off-road diesel-fueled vehicles, do not “own” such vehicles for the purposes of this regulation. (G) The following are not subj ect to this regulation: 1. Locomotives; 2. Commercial marine vessels; 3. Marine engines; 4. Recreational off-highway vehicles; 5. Combat and tactical support equipment; 6. Stationary equipment; 7. Portable engines, except for auxili ary engines included in subsections (b)(2)(B) and (b)(2)(C) above; 8. Equipment or vehicles used excl usively in agricultural operations; 9. Implements of husbandry; 10. Two-engine street sw eepers that are subject to the Truck and Bus Regulation, title 13, CCR, section 2025; 11. Two-engine vehicles that are subject to the Fleet Rule for Public Agencies and Utilities, title 13, CCR, sections 2022 and 2022.1; 12. Two-engine vehicles, that are not two-engine cranes or two-engine waterwell drilling rigs, that have Tier 0 auxiliary engines; 13. Equipment subject to the Regul ation for Mobile Cargo Handling equipment at Ports and Intermodal Rail Yards, title 13, CCR, section 2479;

and

14. Off-road diesel vehicles own ed and operated by an individual for personal, non-commercial, and non-governmental purposes.

Except as provided in the paragraphs below , the regulation applies to any person, business, or government agency who owns oroperates within California any dieselfueled or alternative diesel fueled off -road compression-igniti on vehicle engine with maximum power of 25 horsepower (hp) or greater that is used in a two-engine crane or to provide motive power in a workover rig or to provide motive power in any other motor vehicle that (1) cannot be r egistered and driven safely on-road or was not designed to be driven on-road, and (2) is not an implemen t of husbandry or recreational off-highway vehicle. Unless they are workover rigs , two-engine cranes, or two-engine water-well drilling rigs, vehicles that were des igned to be driven on-road, and have on-road engines, and still meet the original manufactu rer’s on-road engine emission certification standard are considered on-road and are specif ically excluded from this regulation, even if they have been modifi ed so that they cannot be r egistered and driven safely onroad. Off-road vehicles that were desi gned for off-road use and have off-road engines

are considered off-road and are subject to this regulation, even if they have been modified so that they can be driven safely on-road.

This regulation also applies to any person who sells a vehicle with such an engine

within California.3 Persons who provide financing in the form of “finance leases,” as defined in California Uniform Commercial Code Section 10103(a)(7), for in-use off- road diesel-fueled vehicles, do not “own” such vehicles fo r the purposes of this regulation.

Vehicles with engines subject to this regulat ion are used in construction, mining, rental, government, landscaping, recycling, landfill ing, manufacturing, warehousing, ski industry, composting, airport ground s upport equipment, industrial, and other operations. The regulation does not cover locomo tives, commercial marine vessels, marine engines, recreational vehicles, or co mbat and tactical support equipment. The regulation also does not cover stationary or portable equipment, equipment or vehicles used exclusively in agricultural operati ons, or equipment already subject to the Regulation for Mobile Cargo Handling Equipm ent at Ports and Intermodal Rail Yards. Off-road diesel vehicles owned and operat ed by an individual for personal, noncommercial, and non-governmental purposes are exempt from the pr ovisions of this regulation.

(c) Definitions

(1) “Agricultural operations” means (1) the growing or harvesting of crops from soil (including forest operations) and the ra ising of plants at wholesale nurseries, but not retail nurseries), or the raising of fowl or animals for the primary purpose of making a profit, providin g a livelihood, or conducting ag ricultural research or instruction by an educational instituti on, or (2) agricultu ral crop preparation services such as packinghouses, cotton gins, nut hullers and processors, dehydrators, and feed and grain mills. Ag ricultural crop preparation services include only the first processing afte r harvest, not subsequent processing, canning, or other similar activities. Fo r forest operations, agricultural crop preparation services include milling, peeling, producing particleboard and medium density fiberboard, and produci ng woody landscape materials.

For purposes of this regulation, a vehi cle that is used by its owner for both agricultural and nonagricultural operations is considered to be a vehicle engaged in agricultural operations, only if over half of its annual operating hours are for agricultural operations.

(2) “Airport ground support equipment” (GSE) is mobile diesel-fueled off-road compression ignition vehicl es used to service and support aircraft operations. GSE vehicles perform a variety of functi ons, including but not limited to: aircraft maintenance, pushing or towing aircraft, transporting cargo to and from aircraft, loading cargo, and baggage handling. G SE vehicles include equipment types such as baggage tugs, belt loaders, and cargo loaders.

(3) “Alternative diesel fuel” means any fuel used in a compression ignition engine

that is not a reformulated diesel fuel as defined in title 13, CCR, sections 2281 and 2282 of title 13, California Code of R egulations (CCR), and does not require engine or fuel system modi fications for the engine to operate, although minor4 modifications (e.g., re calibration of the engine fuel control) may enhance performance. Examples of alternative dies el fuels include, but are not limited to, biodiesel, Fischer-Tropsch fuels, and emulsi ons of water in diesel fuel. A diesel fuel containing a fuel additive will be treat ed as an alternative diesel fuel unless: (A) the additive is supplied to the vehi cle or engine fuel by an on-board dosing mechanism, or (B) the additive is directly mixed into t he base fuel inside the fuel tank of the vehicle or engine, or (C) the additive and base f uel are not mixed until engin e fueling commences, and no more additive plus base fuel comb ination is mixed than required for a single fueling of a singl e engine or vehicle.

(4) “Alternative fuel” means natural gas, propane, ethanol, methanol, gasoline (when used in hybrid electric vehicles only ), hydrogen, electricity, fuel cells, or advanced technologies that do not rely on di esel fuel. “Alternative fuel” also means any of these fuels used in combi nation with each other or in combination

with other non-diesel fuels.

(5) “ B

est a A

vailable c C

ontrol t T

echnology” (BACT) means the Verified Diesel Emission Control Strategy (VDECS)exhaus t retrofit and accelerated turnover requirements in sections 2449.1(b) . (a)(2) and 2449. 2(a)(2).

(6) “Captive a A

ttainment a A

rea f F

leet” means a fleet or fleet portion, as defined under section 2449(c)(20), an identif ied subpart of the fleet (f leet portion, consistent with section 2449(d)), in which all of the vehicles in the fleet or fleet portion operate exclusively within the follo wing counties: Alpine, Co lusa, Del Norte, Glenn, Humboldt, Lake, Lassen, Mendocino, Modoc , Monterey, Plumas, San Benito, San Luis Obispo, Santa Barbara, Santa Cruz, S hasta, Sierra, Siskiyou, Trinity, Tehama, and Yuba, and the portion of Sonoma County that lies within t he boundaries of the

North Coast Air Basin. A fleet or identif ied fleet portion that operates one or more

vehicles outside the countie s and area listed above is not a captive attainment area fleet. Captive attainment area fleets shall be treated as small fleets even if their total max hp exceeds 2,500 hp. All fleets ow ned by the United States, the State of California, or agencies thereof (i.e., an agency in the judicial, legislative, or executive branch of the federal or state government ) are considered to be large fleets (per section 2449(c)(24)(A)), and vehicles owned by such fleets, regardless of whether they operate exclusively within the above c ounties and area, are no t part of a captive

attainment area fleet.

(7) “Carryover retrofit credit” , as calculated under sect ion 2449.2(a)(2)(A)2., means a way of tracking retrofits accomp lished in excess of those required by the BACT retrofit requirement s. Fleets may take credit for such excess retrofits in order to do less retrofitting in later years.

(7)(8) “Carryover BACT turnover credit” , as calculated under section 2449.1(b)(8)(a)(2)(A)2., means a way of tra cking turnover or VDECS installations5 accomplished in excess of the BACT tur nover requirements. Fleets may take

credit for such excess turnover or VDEC S installations to do less turnover or VDECS installations in later years.

(8)(9) “Combat and t T

actical s S upport e E quipment” means equipment that meets military specifications, is owned by the U.S. Department of Defense and/or the U.S. military services or its allies, and is used in combat, combat support, combat service support, tactical or re lief operations or training for such operations.

(9)(10) “Common ownership or control” means being owned or managed day to day by the same person, corporation, par tnership, or association. Vehicles managed by the same directors, officers , or managers, or by corporations controlled by the same majority st ockholders are considered to be under common ownership or control even if thei r title is held by different business

entities.

(10)(11) “Compression ignition engine” means an internal combustion engine with operating characteristics significantly similar to the theoretical diesel combustion cycle. The regulat ion of power by controlling fuel supply in lieu of a

throttle is indicative of a compression ignition engine.

(11)(12) “Dedicated s S now r R

emoval v V

ehicle” means a vehicle that is operated exclusively to remove snow from public roads, private roads, or other paths from

which snow must be cleared to allow on -road vehicle access. Dedicated snow removal vehicles must have permanently affixed snow removal equipment such as a snow blower or auger and may includ e, but are not limited to, motor graders, loaders, and snow blowers.

(12)(13) “Diesel fuel” has the same meaning as defined in title 13, CCR, sections

2281 and 2282.

(13)(14) “Diesel p P articulate f F

ilter” means an emission control strategy that reduces diesel particulate matter emissi ons by directing all of the exhaust through a filter that physically captures particles but permits gases to flow through. Periodically, the collected parti cles are either physically removed or oxidized (burned off) in a process called regeneration

.

(14)(15) “Diesel particulate matter” (diesel PM) means the particles found in the exhaust of diesel-fueled compressi on ignition engines. Diesel PM may agglomerate and adsorb other species to fo rm structures of complex physical and chemical properties. The Air Resour ces Board (ARB) has identified diesel

PM as a toxic air contaminant.

(16) “Diesel PM Index” means an indicator of a fleet’s overall diesel PM emission rate. The diesel PM Index for a spec ific fleet is determined by summing the6 product of the maximum power of each engine times the diesel PM Emission Factor, and dividing by the fleet’s total maximum power.

(17) “Diesel PM Target Rate” means the fleet average that a specific fleet must meet in a compliance year in order to show compliance with the fleet average requirements. The Diesel PM Target Rate varies depending on a fleet’s horsepower distribution. The Diesel PM Tar get Rate for a specif ic fleet for each compliance year is determined by summi ng (adding) the product of the maximum power of each engine times the diesel PM target, and dividing the resulting sum by the fleet’s total maximum power.

(15)(18) “Emergency operation” means helping alleviate an immediate threat to public health or safety. Examples of emergency operation include repairing or preventing damage to roads, buildings, terrain , and infrastructure as a result of an earthquake, flood, storm, fi re, other infrequent act of nat ure, or terrorism.

Routine maintenance or construction to prevent public health risks does not constitute emergency operation.

(16)(19) “Emission f F

actor” means PM or oxides of ni trogen (NOx) emission rate in grams per brake-horsepower hour (g/ bhp-hr) as shown in Appendix A., unless the engine is a Post-2007 Flexib ility Engine (see definition). (A) Engines certified to Family Emission Limits and flexibility engines certified before January 1, 2007 must still use the emission factors in Appendix A. (B) For engines that have been retrofit wit h VDECS, the PM Emission Factor is reduced 50 percent for a Level 2 VD ECS, and 85 percent for a Level 3 VDECS; the NOx Emission Factor is reduced by the percentage NOx emission reductions that are verified, if any. The PM Emi ssion Factor is not

reduced for a Level 1 VDECS.

(17)(20) “Equipment i I dentification n N umber” means a unique identification number assigned by ARB to each vehicle in an owner’s fleet subject to this regulation. All reporting and recordk eeping will link vehicle data with this

number.

(18)(21) “Executive Officer” means the Executive Officer of the ARB or his or her authorized representative.

(19)(22) “Family e E mission l L

imit” (FEL) means an emission level that is declared by the manufacturer to serve in lieu of an emission standard for certification purposes and for the averaging, banking, and trading program, as defined in title 13, CCR, section 2423.

(20)(23) “Fleet” means all off-road vehicles and engines owned by a person, business, or government agency that are operated within Ca lifornia and are subject to the regulation. A fleet may consist of one or more vehicles. A fleet

does not include vehicles that hav e never operated in California.7 “Fleet portions” – means that part of a fleet for which daily operations and dispatching are managed by different respons ible officials because they are part of different subsidiaries, divisions, or other organizational substructures of a parent company, corporation or agency, which owns or controls the operations of the subsidiary, division, or organizational substructure, and the parent company, corporation, or agency elects to have so me or all the fleet portions comply with the performance requirements separately and be reported separately. A fleet may have some fleet portions that meet t he definition of captive attainment area fleet and some fleet portions that do no t. However, the total max hp of the vehicles under common ownership or cont rol of the parent co mpany, corporation, or agency determines the fleet size. On ce a fleet begins to comply and report separately as fleet portions, the fleet porti ons must continue to comply and report separately, and the fleet por tions must meet the adding vehicle requirements in section 2449(d)(6) just as if they were separate fleets.

(21) “Fleet average index” means an indicator of a fleet’s overall emission rate. The fleet average index for a specific fleet is determined by summing (adding) the product of the max hp of each engine ti mes the emission factor, and dividing by the fleet’s total max hp.

(22) “Fleet average target rate” means the fleet average that a specific fleet must meet in a compliance year in order to show compliance with the fleet average requirements. The fleet average target rate varies depending on a fleet’s hp distribution. The fleet average target rate for a specific fleet for each compliance year is determined by summing (adding ) the product of the max hp of each engine times the target, and dividing the resu lting sum by the fleet’s total max hp.

(23)(24) “Fleet o O wner” means, except as qualified below, the person who owns and has possession of the vehicles in the fleet.

“Rental or Leased Fleets“ - Vehicles t hat are owned by a rental or leasing company and that are leased by the same lessee for a period of one year or more may be excluded from t he rental company fleet and in cluded in the fleet of the lessee only if such arrangement is delin eated in the written lease agreement.

Vehicles that are rented or leased for a period of less than one year must be

included in the fleet of t he rental or leasing company. Off-road vehicles and engines subject to this regulation that are owned by a lessor and leased to a

lessee under a “lease” as defined in California Uniform Commercial Code, section 10103(a)(10), for a duration of at least one year, dated prior to the effective date of these regul ations, are considered part of the fleet of the lessee

rather than the lessor.

(24)(25) “Fleet sSize cCategory”

– Fmeans fleets are classified by size as described below. A fleet must meet large fleet requirements if the total vehicles8 under common ownership or control would be defined as a large fleet. A fleet must meet medium fleet requirement s if the total vehicles under common ownership or control would be defined as a medium fleet. Indi vidual federal or state agencies may report as separate fleet s, but all vehicles owned by agencies

of the United States or t he State of California agencies must meet the large fleet requirements. Permanent and year-by-yearlLow-use vehicles, dedicated snowremoval vehicles, and vehicles used sole ly for emergency operations need not

be included in the total max hpmaximum power used to cla ssify fleets by size. (A) “Large fFleet” – A fleet with a total max hpmaximum power (as defined below) greater than 5,000 horsepower (hp) . A fleet must meet large fleet requirements if the total vehicles under common ownership or control would be defined as a large fleet. All fleets ow ned by the United States, the State of California, or agencies thereof (i.e., an agen cy in the judicial, legislative, or

executive branch of the federal or state government) will be considered as a

unit whole and must meet the large fleet requirements. (B) “Medium fFleet” – A fleet that is not a small or large fleet. (C) “Small fFleet” – A fleet with total max hpmaximum power of less than or equal to 2,500 hp that is owned by a bus iness, non-profit organization, or local municipality, or a local municipality fleet in a low population county irrespective of total max hpmaximum power, or a non-profit training center irrespective of total max hpmaximum power, or a captiv e attainment area fleet irrespective of total max hp.

(25) “Flexibility engine” means an engine certified to the implementati on flexibility standards in title 13, CCR, section 2423(d).

“Post-2007 flexibility engine” – A flexibility engine certif ied on or after January 1, 2007. Such flexibility engines are genera lly labeled as follows by the engine

manufacturer:

"THIS ENGINE COMPLIES WITH CALIFORNIA EMISSION REQUIREMENTS UNDER 13 CCR 2423(d)...” or

"THIS ENGINE CONFORMS TO CALIFORNIA OFF-ROAD COMPRESSION-IGNITION ENGINE REGULATIONS UNDER 13 CCR, 2423(d)."

(26) “Forest operations” means (A) forest fire preven tion activities performed by public agencies, including but not limit ed to construction and maintenance of roads, fuel breaks, firebreaks, and fi re hazard abatement or (B) cutting or removal or both of timber, other solid wood products, including Christmas trees,

and biomass from forestlands for commercial purposes, t ogether with all the work incidental thereto, including but not lim ited to, construction and maintenance of roads, fuel breaks, firebrea ks, stream crossings, landings, skid trails, beds for falling trees, fire hazard abatement, and site preparation that involves disturbance of soil or burning of vegetation following fore st removal activities. Forest operations include the cutting or re moval of trees, tops, limbs and or brush9 which is processed into lumber and other wood products, and or for landscaping materials, or biomass for electrical power generation. Forest operations do not

include conversion of forestlands to ot her land uses such as residential or commercial developments.

(27) “Highest Level Verified Diesel Emission Control Strategy” (VDECS ) means the highest level VDECS verified by ARB under its Verification Procedure, Warranty and In-Use Compliance Requirement s for In-Use Strategies to Control Emission from Diesel Engines ( Verification Procedure ), title 13, CCR, sections 2700-2710, for a specific engine as of 10 mo nths prior to the compliance date, which (1) can be used without impairing t he safe operation of the vehicle as demonstrated per section 2449(e)(8), and (2) the diesel emission-control strategy

manufacturer and authorized diesel emissi on-control strategy dealer agree can be used on a specific engine and vehicl e combination without jeopardizing the original engine warranty in effect at the time of application.

Plus designations do not matter; that is, a Level 3 Plus is the same diesel PM level as Level 3; and Level 2 Plus is the same diesel PM level as Level 2.

The highest level VDECS is determined solely based on verified diesel PM reductions, not based on verified NOx reductions. All Level 3 diesel PM devices are higher than all Level 2 diesel PM devices. Level 1 devices are never considered highest level VDECS for the purpose of this regulation.

(27)(28) “ Hour m M eter l L

og ” means a log of the hours t hat a vehicle operated directly taken from the vehicle’s hour meter.

(28)(29) “Implement of husbandry” is as defined in California Vehicle Code (Veh.Code) division 16.

(29)(30) “Local m M unicipality” means a city, county, city and county, special district, or other public agency, or two or more public enti ties acting jointly, or the duly constituted body of an Indian reserv ation or rancheria. Agencies of the

United States of America or the State of California, and departments, divisions, public corporations, or public agencies of this State or of the United States are

not considered local municipalities.

(30)(31) “Low- pPopulation cCount y lLocal mMunicipality fFleet” means a fleet owned by a local municipality (as defined ab ove) that is located in a county as defined in title 13, CCR, section 2022( b)(42) and identified in section 2022.1(c)(2), Table 2, or, us ing the criteria set forth in title 13, CCR, section 2022.1(c)(4), a local municipality not loca ted in a low-populat ion county that has requested and has received Executive Officer approval to be treated like a municipality in a low-population count y. Fleets owned by such local municipalities shall be treat ed as small fleets even if their total max hpmaximum power exceeds 2,500 hphorsepower.10 (32) “Low-use vehicle” means a vehicle that operat ed in California less than 100 hours during the preceding 12 -month period running fr om March 1 to end of February. For example, when reporting in 2009, the hours of use between March 1, 2008 and February 28, 2009 would be used to determine low-use status. To be considered a low-use vehicle, the fl eet owner must subm it engine operation data from a functioning non -resettable hour meter. (A) Vehicles used outside California - Vehicles that operate both inside and

outside of California can meet the low-us e vehicle definition if they are used less than 100 hours per year in California. (B) Three-year rolling average - A vehicle operated only in California for the previous three years and owned by the same owner during that period will be considered low-use if it operated on average less than 100 hours per year during that previous th ree-year period. (C) Emergency operation hours - Hours used for emergency operations are not counted when determining low-use status.

(31)(33) “Maximum power” (Mmax Hhp) means the engine’s net horsepower (hp) or net flywheel power certified to Soci ety of Automotive Engineers (SAE) Method J1349 or International Organization for Standardization (ISO) Method 9249. If the engine’s net hphorsepower or net flyw heel power certified to SAE Method J1349 or ISO Method 9249 is not readily av ailable, another net hphorsepower or net flywheel power from the manufacturer’s sales and service literature or hphorsepower from the engine label may be used.

(32)(34) “Model year” has the same meaning as defi ned in title 13, CCR, section 2421(a)(37).

(33)(35) “Motor vehicle” has the same meaning as de fined in Veh. Code section

415.

(34)(36) “New fleet” means a fleet that is acquired or that enters California on or after January 1, 2012 March 1, 2009. Su ch fleets may include new businesses

or out-of-state businesses that bring vehicles into California for the first time on or after January 1, 2012. March 1, 2009.

(37) “NOx index” means an indicator of a fleet’s overall NOx emission rate. The NOx Index for a specific fleet is determined by summing the product of the maximum power of each engine times the NOx Emission Factor, and dividing by the fleet’s total maximum power.

(38) “NOx target rate” means the NOx fleet average that a specific fleet must meet in a compliance year in order to s how compliance with the fleet average requirements. The NOx Target Rate va ries depending on a fleet’s horsepower distribution. The NOx Target Rate for a specific fleet for each compliance year is determined by summing (adding) the produc t of the maximum power (Max Hp) of11 each engine times the NOx target, and divi ding the resulting sum by the fleet’s total maximum power.

(35)(39) “Non- pProfit tTraining cCenter” means an entity that operates a program for training in the use of off-road vehicl es and that (A) is a community college program that trains students in the use of off-road vehicles or (B) qualifies as a non-profit or not for prof it organization under title 26 Internal Revenue Code section 501(a), (c)(3), (c)(5), or (c)(6). Any vehicles that are not used for an offroad training program are not considered part of a non-profit training center and must be considered a separate fleet.

(36)(40) “Off-highway vehicle” is defined in Veh. C ode division 16.5.

(37)(41) “Operator lLog” means a log of the hours that a vehicle operated taken

from records of vehi cle operator hours.

(38)(42) “Oxides of nitrogen” (NOx) means compounds of nitric oxide, nitrogen dioxide, and other oxides of nitrogen. Nitrogen oxid es are typically created during combustion processes and are ma jor contributors to smog formation and acid deposition.

(39) “Permanent low-use vehicle” means a vehicle that a fleet owner has designated as operating less than 200 hour s a calendar year, for all years subsequent to the designation. For exampl e, if a fleet designates a vehicle as permanent low-use at any point in 2014, t hat vehicle can only be used less than 200 hours in any calendar year from 2015 onwards. To be considered a permanent low-use vehicle, the fleet owner must submit the engine hours of operation from a functioning no n-resettable hour meter. (A) Vehicles used outside California

- Vehicles that operate both inside and outside of California can meet the perm anent low-use vehicle definition if they are used less than 200 hours per year in California. (B) Emergency operation hours - Hours used for emergency operations are not counted when determining pe rmanent low-use status. (C) Future increase in hours – Once designated as permanent low-use, a vehicle may only be used up to 200 hours per year by the fleet unless the vehicle meets the adding vehicles requirem ents in section 2449(d)(6). If the vehicle meets the adding vehicle requireme nts, the fleet may increase the use to 200 hours or more per year, and repor t the updated status of the vehicle to remove the low-use designation. (D) No obligation – A fleet is not obliged to desig nate a vehicle whose use drops below 200 hours per year as a permanent lo w-use vehicle. If such a vehicle is not designated as permanent low-use, its use may increase to 200 hours or more per year in subsequent years without meeting t he adding vehicles requirements in section 2449(d)(6).12 (E) Two-engine vehicles – Both engines of two-engi ne vehicles must each operate less than 200 hours per year in order for the vehicle to be considered a permanent low-use vehicle.

(43) “Post-2007 Flexibility Engine” means an engine certified on or after January 1, 2007 to the implementation flexibilit y standards in title 13, CCR, section 2423(d). Such flexibility engines are generally labeled as follows by the engine

manufacturer:

"THIS ENGINE COMPLIES WITH CALIFORNIA EMISSION REQUIREMENTS UNDER 13 CCR 2423(d)...” or

"THIS ENGINE CONFORMS TO CALIFORNIA OFF-ROAD COMPRESSION-IGNITION ENGINE REGULATIONS UNDER 13 CCR, 2423(d)."

Post-2007 flexibility engines should us e the emission standard to which the engine is certified. For example, a Ti er 4 engine flexed back to Tier 2 emission

levels should use the Tier 2 PM standard in title 13, CCR, section 2423(b)(1)(A) as the emission factor (c onverted from gram s per kilowatt hour (g/kW-hr) to g/bhp-hr by multiplying by 0.746).

(40)(44) “Queuing” means the intermittent starting and stopping of a vehicle while the driver, in the normal course of doing bus iness, is waiting to perform work or a service, and when shutting the vehicle en gine off would impede the progress of the queue and is not practicable. Queuing does not include the time a driver may wait motionless in line in anticipation of the start of a workday or opening of a

location where work or a service will be performed.

(41)(45) “Registered and driven safely on-road” means a vehicle meets the requirements to be registered for on-r oad operation in Veh. Code division 3, chap. 1, article 1, sections 4000 et seq. (i.e., required to be registered or could be registered), and the requirements to be dr iven safely on-road in “Equipment of Vehicles” requirements in Veh. Code divisi on 12, chap. 1, sections 24000 et seq. and “Size, Weight, and Load” requirements in Veh. Code division 15, sections 35000 et seq. Having a Californ ia Special Construc tion Equipment plate

as defined in California Veh. Code se ctions 565 and 570 does not constitute registration.

(42)(46) “Replacement” means the addition of off-road di esel vehicles to a fleet that

had retired one or more off-road diesel ve hicles of an equivalent hphorsepower in a given year.

(43)(47) “Repower” means to replace the engine in a vehicle with another engine meeting a subsequent engine emissions st andard (e.g., replacing a Tier 0 engine with a Tier 2 or later engine).13 (44)(48) “Responsible oOfficial” means one of the following: (A) For a corporation: A presi dent, secretary, treasurer, or vice president of the corporation in charge of a principal bus iness function, or any other person who performs similar policy or decision -making functions for the corporation., (B) For a partnership or sole proprietorshi p: a general partner or the proprietor, respectively. (C) For a municipality, state, federal, or other public agency: either a principal executive officer or ranking elected offi cial. For the purposes of this part, a principal executive officer of a feder al agency includes the chief executive officer having responsibility for the over all operations of a principal geographic unit of the agency (e.g., a Regional Administrator of the U.S. EPA).

(45)(49) “Retire or retirement” means to take anremoval of an engine out of service from fleet service, and so that the engine is not s ubsequently operated it again by the fleet in the State of Californ ia. To retire an engine, the vehicle with the engine may be moved outside of California, sold to another fleet (in or outside California), or scrapped. The return of a rent ed or leased vehicle by a

fleet to a rental or leas ing company is not consi dered to be a retirement. Similarly, the rental or leasing of a v ehicle by a rental or leasing company does

not count as a retirement for t he rental or leasing company.

(46)(50) “Snow removal operations” means removing snow from public roads, private roads, or driveways.

(47)(51) “Specialty vehicle” means a vehicle for which no used vehicle with a cleaner engine that can serve an equiva lent function and perform equivalent

work is available.

(48)(52) “Tier 0 eEngine” means an engine not subject to the requirements in title 13, CCR, section 2423; Title 40, Code of Federal Regulations (CFR), Part 89; or Title 40, CF R, Part 1039.

(49)(53) “Tier 1 eEngine” means an engine subject to the Tier 1 new engine emission standards in title 13, CCR, sect ion 2423(b)(1)(A) and/or Title 40, CFR, Part 89.112(a). This also includes engines certified under the averaging, banking, and trading program wit h respect to the Tier 1 Family Emission Limits (FEL) listed in title 13, CCR, section 2423(b)(2)(A) and/or Title 40, CFR, Part 89.112(d).

(50)(54) “Tier 2 eEngine” means an engine subject to the Tier 2 new engine emission standards in title 13, CCR, sect ion 2423(b)(1)(A) and/or Title 40, CFR, Part 89.112(a). This also includes engines certified under the averaging, banking, and trading program wit h respect to the Tier 2 FEL listed in title 13, CCR, section 2423(b)(2)(A) and/or Ti tle 40, CFR, Part 89.112(d).14 (51)(55) “Tier 3 eEngine” means an engine subject to the Tier 3 new engine emission standards in title 13, CCR, sect ion 2423(b)(1)(A) and/or Title 40, CFR, Part 89.112(a). This also includes engines certified under the averaging, banking, and trading program wit h respect to the Tier 3 FEL listed in title 13, CCR, section 2423(b)(2)(A) and/or Ti tle 40, CFR, Part 89.112(d).

(52)(56) “Tier 4 Final eEngine” means an engine subject to the final aftertreatment-based Tier 4 emission standar ds in title 13, CCR, section 2423(b)(1)(B) and/or Title 40, CFR, Part 1039.101. This also includes engines certified under the averagi ng, banking, and trading progr am with respect to the Tier 4 FEL listed in title 13, CCR, secti on 2423(b)(2)(B) and/or Title 40, CFR, Part

1039.101.

(53)(57) “Tier 4 Interim eEngine” means an engine subject to the interim Tier 4 emission standards (also known as trans itional) in title 13, CCR, section 2423(b)(1)(B) and/or Title 40, CFR, Part 1039.101. This also includes engines certified under the averagi ng, banking, and trading progr am with respect to the Tier 4 FEL listed in title 13, CCR, se ction 2423(b)(2)(B) and/or Title 40, CFR,

Parts 1039.1011039.102 and 1039.104(g).

(54)(58) “Total maximum power” (total max hp) means the sum of the max hpmaximum power for all of a fleet’s engines that are subject to this regulation. Permanent and year-by-year lLow-use vehicles, dedicated snow-removal vehicles, and vehicles used solely for emergency operations shallneed not be

included in the sum.

(55) “Turnover” means retiring a vehicle, designati ng a vehicle as a permanent lowuse vehicle, repowering a vehicle with a higher tier engine, or rebuilding the engine to a more stringent emissions conf iguration. Rented or leased vehicles that are returned to a rental or leasing company do not count as turnover for the lessee. Similarly, vehicles leased or rented out by a rental or leasing company do not count as turnover for the rental or leasing company.

(56)(59) “Two- eEngine c C

rane ” means a mobile diesel- powered machine with a hoisting mechanism mounted on a specially constructed truck chassis or carrier; one engine provides motive power, and a secondary (auxiliary) engine 50 bhp or greater that is used to lift and move materials and objects

.

(57) “Two-engine vehicle” means a specially constructed on-road or off-road mobile diesel-powered vehicle that was designed by the original equipment manufacturer to be equipped with two di esel engines: one engine provides the primary source of motive power of t he vehicle while the second engine is an auxiliary engine 50 bhp or greater that is permanently attached and integrated into the design of the vehicle to perform a specific function, which may include providing auxiliary power to attachments, performing special job functions, or providing additional motive power

.15 (58)(60) “ Two-engine water-well drilling rig” means a mobile diesel-powered drilling rig owned by a water well drilling contractor with a cu rrent, valid C-57 license issued by the Contractors State License Board of California and used exclusively to drill water wells with a drilling mechanism mounted on a specialty

constructed truck chassis or carrier ; one engine provides motive power, and a secondary (auxiliary) engine 50 bhp or greater that is used to power the drilling

mechanism.

(59)(60) “Verified dDiesel eEmissi on cControl sStrategy” (VDECS) means an emissions control strategy, designed prim arily for the reduction of diesel PM emissions, which that has been verified pur suant to the “Verif ication Procedures, Warranty and In-Use Compliance Requirement s for In-Use Strategies to Control Emission from Diesel Engines ” (Verification Procedure), title 13, CCR, sections

2700-2710. VDECS can be verified to reduce PM emissions, or NOx emissions,

or both. VDECS can be verified to achi eve Level 1 diesel PM reductions (25 percent), Level 2 diesel PM reductions (50 percent), or Level 3 diesel PM reductions (85 percent). VDECS may also be verified to achieve NOx reductions.

See also definition of Highest Level VDECS. (A) “Highest level PM VDECS” means the highest level VDECS verified by ARB to reduce PM under its Verification Procedure. The highest level is determined solely based on verified di esel PM reductions, not based on

verified NOx reductions. VDECS can be ve rified to achieve Level 1 diesel PM reductions (at least 25 percent), Level 2 diesel PM reductions (at least 50 percent), or Level 3 diesel PM reducti ons (at least 85 percent). All Level 3 diesel PM devices are higher than all Lev el 2 diesel PM devices. Level 1 PM devices are never considered highest le vel PM VDECS for the purpose of this regulation. “Plus” designations do not matter; that is, a Lev el 3 Plus is the same diesel PM level as Level 3; and Level 2 Plus is the same diesel PM

level as Level 2. A PM VDECS sha ll be considered the highest level PM VDECS only if (1) it can be used without impairing the safe operation of the vehicle as demonstrated per section 2449( e)(8), and (2) the diesel emissioncontrol strategy manufacturer and authoriz ed diesel emission-control strategy dealer agree it can be used on a spec ific engine and vehicle combination without jeopardizing the original engine warranty in effect at the time of application. (B) “VDECS verified to reduce NOx” means VDECS verified by ARB to reduce

NOx under its Verification Procedure. NOx VDECS are not verified by Level, but are verified by the percent reduc tion in NOx emissions from the engine achieved by the VDECS. See also definition of Verified Percent NOx

Reduction.

(60) “Verified percent NOx reduction” means the verified percent reduction in NOx emissions from the engi ne achieved by the VDECS verified to reduce NOx.

(61) “VDECS fFailure” means the condition of a VDECS not achieving the

emissions reductions to which the VDECS is verified. Such a condition could be16 due to inappropriate installation, damage, or deterioration duri ng use. If a Level 3 VDECS is emitting visible smoke, it shouldshall be assumed to have failed.

(62) “Workover rig” means a mobile self-propelled rig used to perform one or more remedial operations, such as deepening, plugging back, pulling and resetting liners, on a producing oil or gas well to try to restore or increase the well’s production.

(63) “Year-by-year low-use vehicle” means a vehicle that operated in California less than 200 hours during the preceding 12 -month calendar year. For example, when reporting in 2014, the hours of use between January 1, 2013 and December 31, 2013 would be used to determi ne year-by-year low-use status. To be considered a year-by-year low-use vehi cle, the fleet owner must annually submit engine operation data from a functioning non-re settable hour meter. (A) Vehicles used outside California - Vehicles that operate both inside and outside of California can meet the yea r-by-year low-use vehicle definition if they are used less than 200 hours per year in California. (B) Three-year rolling average - A vehicle operated only in California for the previous three years and owned by the same owner during that period will be considered year-by-year low-use if it operated on average less than 200 hours per year during that prev ious three-year period. (C) Emergency operation hours - Hours used for emergency operations are not counted when determining year-b y-year low-use status. (E) Two-engine vehicles – Both engines of two-engi ne vehicles must each operate less than 200 hours per year in order for the vehicle to be considered a year-by-year low-use vehicle.

(d) Performance Requirements
–

Fleets that are subject to fl eet average requirements in se ction 2449.1(a) may include vehicles and systems used in place of diesel vehicles in their fleet average index and target rate calculations as described in subs ection (1) below. Fleets that are subject to fleet average requirements may opt to inclu de hours of operation in the fleet average calculation as described in subsection (2) bel ow. Each fleet must meet the performance requirements in subsections (3) to (10)(2) to (9) below. There ar e differing requirements for large, medium, and small fl eets. As stated in section 2449(c)(20), If various portions

of a fleet are under the control of different responsible offici als because they are part of different subsidiaries, divisions, or other organizational structur es of a company or agency, the fleet portions may comply wit h the performance requirements separately and be reported separately. Ho wever, the total maximum pow er of the vehicles under common ownership or control de termines the fleet size. Capt ive attainment area fleets, non-profit training centers, and Ffleets owned by low-population county local municipalities are subject to the small fleet requirement s, even if their total max hpmaximum power exceeds 2,500 hphorsepow er. Section 2449(d)(4)2449(d)(3) describes requirements for fleets that change in size.17 (1) Vehicles and Systems Used in Place of Diesel Vehicles - Fleets with electric, or alternative fuel, or gas oline-powered vehicles may include such vehicles in their fleet average index and target rate calculations as follows: (A) Electric and Alternative Fuel and Gasoline-Powered Vehicles Purchased on or after January 1, 2007 1. Fleets may include an electric and al ternative fuel or gasoline-powered vehicle purchased on or after Januar y 1, 2007, with a max hpmaximum power 25 hphorsepower or greater (or t hat replaced a diesel vehicle with max hpmaximum power 25 hphorsepower or greater) in their fleet average

index if all of the follo wing conditions are met:

a. The owner can demonstrate it serv es a function and performs the work equivalent to that of diesel vehicl es and is used for a purpose for which diesel vehicles are predominantly used,

b. The electric or alternative fuel vehicle is used predo minantly outdoors,

c. The electric or alternative fuel vehi cle is not already included in the fleet average emission level requirement s for Llarge Sspark Iignition Eengine Ffleets in titl e 13, Section 2775.1; and

d. If the vehicle is an alternativ e fuel vehicle, tThe owner must

demonstrate that it is certified to a NOx standard less than or equal to

the Tier 1 NOx standard for the same hphorsepower in title 13, CCR, section 2423(b)(1)(A) and is less than or equal to the NOx emissions of a diesel engine of the same m odel year and hphorsepower. e. If the vehicle is a gasoline-power ed vehicle, the owner must identify the diesel vehicle that the gasoline- powered vehicle replaced and maintain records documenting the function of the diesel vehicle replaced and the gasoline-powered replacement v ehicle, and the dates of sale and purchase for both vehicles. 2. Fleets may include a diesel vehicle with a max hp 25 hp or greater that has been repowered with an alternative f ueled or gasoline-powered engine in their fleet average index and target rate calculations. 3. For the purposes of comp liance with section 2449.1(a):

a. Alternative fuel vehicles - Each alternative fuel vehicle, or diesel

vehicle that has been r epowered with an alternativ e fuel engine, shall use an emission factor equal to the NOx emission standar d to which its engine is certified in g/bhp-hr. If t he alternative fuel vehicle or engine

is not certified to a NOx emission standard, the owner may apply to the

Executive Officer to use an emission factor. In the application, the

owner must demonstrate t hat the chosen emission fa ctor is appropriate and not exceeded by the alternative fuel vehicle. b. Gasoline-powered vehicles – Each gasoline powered vehicle, or

vehicle that has been r epowered with a gasoline- powered engine, shall use an emission factor equal to t he gasoline-powered vehicle’s or engine’s HC+NOx certified emission standard in g/bhp-hr multiplied by

0.95. 4.2. Fleets may include a diesel v ehicle with a max hpmaximum power 25 hphorsepower or greater that has been c onverted to alternative fuel or18 gasoline-power in their fleet average index and target rate

calculations. The Eemission Ffactor for NOx remains the same as the

emission factor for the dies el vehicle. The Emissi on Factor for PM is 0. 3. For the purposes of compli ance with sections 2449.1(a)(1) and 2449.2(a)(1), electric vehicles shall be credited as follows: a. Max Hp for Electric Vehicles - For an electric vehicle that replaced a

diesel vehicle in the owner’s flee t, the maximum power of the diesel vehicle replaced may be used as the electric vehicle’s Max Hp . For an electric vehicle added to the fleet, the fleet owner may apply to the

Executive Officer to use the maximum power of a diesel vehicle that serves the same function and performs equivalent work to that of the electric vehicle. In making his or her determination, the Executive Officer will approve the use of the minimum Max Hp of a diesel vehicle that would be required to perform t he same functions and equivalent work. If no request to the Executiv e Officer is received, the electric vehicle’s own maximum power rating should be used.
b. Double Credit fo r Electric in 2010-2016 - For compliance dates in 2010 through 2016, the Max Hp of all electric vehicles purchased on or after January 1, 2007 may be doubled in determining the Max Hp that is used in calculating the Diese l PM Index, and as appropriate, NOx

Index. An Emission Factor of 0 may be used. The Max Hp of each

electric vehicle is included but not doubled in the calculation of Diesel PM Target Rate and NO x Target Rate. c. Single Credit for Electric in 2017 and Later - For compliance dates in year 2017 and later, the Max Hp of all electric vehicles purchased on or after January 1, 2007 is used in determining the Max Hp that is used in calculating the Diesel PM and NO x Target Rates, Diesel PM Index, and, as appropriate, NOx Index. An Emission Factor of 0 may be

used. 4. For the purposes of compli ance with sections 2449.1(a)(1) and 2449.2(a)(1), each alternative fuel vehi cle should use an Emission Factor equal to the emission standard to which it s engine is certified in g/bhp-hr.

If the alternative fuel vehicle is no t certified to a NOx or diesel PM emission standard, the owner may apply to the Executive Officer to use an emission factor. In the application, the owner must demonstrate that the chosen emission factor is appropriate and not exceeded by the alternative

fuel vehicle. (B) Electric Vehicles and Alternati ve Fuel Vehicle Purchased Prior to January 1, 2007 1. Fleets may include an electric vehi cle with a max hp 25 hp or greater or that replaced a diesel vehicle with ma x hp 25 hp or greater in their fleet average index if all the fo llowing conditions are met:

a. The owner can demonstrate it serv es a function and performs the work equivalent to that of diesel vehicl es and is used for a purpose for which diesel vehicles are predominantly used;

b. The electric vehicle is used predominately outdoors; and19 c. Except as provided in section 2449(d )(1)(B)2.a., the electric vehicle is not already included in the fleet average emission level requirements for Large Spark Ignition Engine Fl eets in title 13, section 2775.1. 2. For the purposes of compliance with sections 2449.1(a), electric vehicles

shall be credited as follows:

a. 1. GSE Electric Vehicles Purchased Prior to January 1, 2007 - : Electric airport GSE vehicles wit h a max hpmaximum power of 25 hphorsepower or greater (or that replaced a diesel vehicle with max hpmaximum power 25 hphorsepower or greater) purchased prior to January 1, 2007, may be partially counted in the fleet average

calculations as follows: i.a. Max Hp for Electric Vehicles - For an electric vehicle that replaced

a diesel vehicle in the owner’s fleet, the max hpmaximum power of the diesel vehicle replaced may be used as the electric vehicle’s max hp Max Hp . Otherwise, the electr ic vehicle’s own max hpmaximum power rating shouldshall be used. ii.b. Include such vehicle’s max hp Max Hp times 0.2 as the max hp Max Hp in calculating the fleet average index and target rate Target Rate, Diesel PM Index, and, as appr opriate, NOx Index in sections 2449.1(a)(1), along with an Eemission Ffactor of 0.

b. Non-GSE Electric Ve hicles Purchased Prior to January 1, 2007 – Electric vehicles with a max hp of 25 hp or greater purchased prior to January 1, 2007 that replaced a dies el vehicle with max hp 25 hp or greater, may be counted in the fleet average calculations as follows: i. Max Hp for Electric Vehicles - For an electric vehicle that replaced a

diesel vehicle in the owner’s flee t, the max hp of the diesel vehicle replaced may be used as the electric vehicle’s max hp. Otherwise, the electric vehicle’s own max rating shall be used. ii. Include such vehicle’s max hp as the max hp in calculating the fleet average index and target rate in section 2449.1(a), along with an

emission factor of 0.

c. Electric Vehicles Purchased on or after January 1, 2007 i. Max Hp for Electric Vehicles - For an electric vehicle that replaced a

diesel vehicle in the owner’s flee t, the max hp of the diesel vehicle replaced may be used as the electric vehicle’s max hp. For an

electric vehicle added to the fleet that did not replace a diesel vehicle, the fleet owner may apply to the Executive Officer to use the max hp of a diesel vehicle that serves the same function and performs equivalent work to that of the electric vehicle. In making his or her determination, the Ex ecutive Officer will approve the use

of the minimum max hp of a diesel vehicle that would be required to perform the same functions and equiva lent work. If no request to the Executive Officer is received, the electric vehicle’s own max hp rating shall be used. ii. Double Credit for Electric in 2014-2016 - For compliance dates in 2014 through 2016, the max hp of all electric vehicles purchased on20 or after January 1, 2007 may be doubled in determining the max hp that is used in calculating the fleet average index. An emission factor of 0 may be used. The max hp of each electric vehicle is

included but not doubled in the calc ulation of fleet average target

rate. iii. Single Credit for Electric in 2017 and Later - For compliance dates in year 2017 and later, the max hp of all electric vehicles purchased on or after January 1, 2007 is us ed in determining the max hp that is used in calculating the fleet av erage index and target rate. An emission factor of 0 may be used.

3. Electric vehicles need not be include d when determining fleet size, or when calculating the required hp for t he BACT requirements in section 2449.1(b).

2. Non-GSE: a. Fleet owners may count a non-GSE elec tric or alternative fuel vehicle purchased prior to January 1, 2007 in the fleet average calculations if all of the following conditions are met:

i. The owner can demonstrate it serves a function and performs the work equivalent to that of diesel vehicles and is used for a purpose for which diesel vehicles are predominantly used,

ii. the electric or alternative fuel vehicle is used predominantly outdoors, iii. the vehicle is not already count ed toward the fleet average emission level requirements for la rge spark ignition engine fleets in title 13, CCR, section 2775.1; and

iv. if the vehicle is alternative fuel vehicle with a certified NOx emission level, the certified NOx emission levels are lower than the NOx

standard for the same model year and horsepower in section 2423(b)(1) and Title 40, CFR, Part 89.112(a) and Title 40, CFR, Part 1039.101.

b. Include such vehicle’s Max Hp as the Max Hp in the calculating the Target Rate, Diesel PM Index, and, as appropriate, NOx Index in sections 2449.1(a)(1) and 2449.2(a)(1). For an electric vehicle, use

an Emission Factor of 0. For an alternative fuel vehicle, use an Emission Factor equal to the emissi on standard to which its engine is certified in g/bhp-hr. If the alternative fuel vehicl e is not certified to a

NOx or diesel PM emission standar d, the owner may apply to the

Executive Officer to use an emission factor. In the application, the

owner must demonstrate that t he chosen emission factor is appropriate and not exceeded by the al ternative fuel vehicle. (C) Stationary or Portable System Used to Replace Mobile Diesel Vehicle Fleet owners may apply to the Executive Officer to include electric portable or electric stationary systems t hat replace mobile diesel vehicles, such as an electric conveyor system used to replace diesel haul trucks at a mine, in the fleet average calculations. The syst em may be considered in the fleet average calculations by in cluding the max hpmaximum power of the diesel21 vehicles replaced in the calculations of the fleet average inde x and target rate Target Rate, Diesel PM Index, and NOx Index above, along with an

Eemission Ffactor of 0. In order to count such a system, all the following

conditions must be met:

1. The owner must demonstrate that it replaced an off-road diesel fueled vehicle subject to this regulati on on or after January 1, 2007, and 2. The system is not already counted toward the fleet average emission level requirements for Llarge Sspark Iignition Eengine Ffleets in title 13, CCR, section 2775.1 or for portable diesel engine fleets in title 17, CCR, section

93116.3. (D) Hybrid Off-Road Vehicles Fleets may include a hybrid off-road diesel vehicle with a max hp 25 hp or greater in their fleet average index and ta rget rate calculation. The emission factor for the hybrid vehicle shall be equal to the NOx emission standard to which its engine is certified in g/bhp- hr. If a fleet owner wishes to use different emission factor, other t han the standard to which the engine is certified, the owner may apply to the Ex ecutive Officer to use an alternative

emission factor. The Executive Officer shall approve the alternative emission factor if, in the fleet owner’s applicat ion, the owner demonstrates that the chosen emission factor is appropriate and not exceeded by the hybrid vehicle. (D) Gasoline-Powered Vehicles Used to Replace Diesel Vehicles - Fleets may include a gasoline-pow ered vehicle of 25 horsepo wer or greater that replaces a diesel vehicle on or afte r January 1, 2007 in their fleet average only if all the following conditions are met: 1. The owner can identify the diesel v ehicle that the gaso line-powered vehicle replaced and show that the diesel vehi cle was retired from the fleet within

6 months of the date t hat the gasoline-powered v ehicle was added to the

fleet. 2. The gasoline-powered vehicle serves the same function as the diesel vehicle that it replaced and is of similar horsepower. 3. The fleet would continue to be in compliance with the fleet average emission level requirements for large spark ignition engine fleets in title 13, CCR, section 2775.1 if the gasoli ne-powered vehicle that replaces a diesel vehicle were excluded from the large spark ignition average.

4. The owner must demonstr ate the gasoline-powered v ehicle is certified to a

NOx standard less than or equal to the Tier 1 NO x standard for the same horsepower in title 13, CCR, section 2423(b)(1)(A) and less than or equal

to the NOx emissions of a diesel engine of the same model year and horsepower. If qualified, the gasoline- powered vehicle may use the maximum horsepower of the diesel vehicle replaced, a diesel PM emission factor of zero (0), and a NOx emission factor equal to the gasoline-powered vehicle’s HC+NOx certified emission standard in g/ bhp-hr multiplied by 0.95.

(2) Hours in Fleet Average Option – As an alternative to the formulas for calculating NOx index and diesel PM index in sections 2449.1(a)(1) and22 2449.2(a)(1), fleet owners may opt to in clude annual hours of operation for all engines in the fleet on the compliance date in the calculation as follows:

NOx Index = 1.18 times [S UM of (Max Hp for each engine in fleet on compliance date multiplied by NOx Emission Factor for each engine in fleet on compliance date multiplied by Annual Hours of Operation for each engine in fleet on compliance dat e since the previous year’s compliance date)] divided by [SUM of (Max Hp for each engine in fleet on compliance date multiplied by Annual Hours of Operation for each engine in fleet on compliance date since the previous year’s compliance date)]

Diesel PM Index = 1.18 time s [SUM of (Max Hp for eac h engine in fleet on compliance date multiplied by PM Emission Factor for each engine in fleet on compliance date multiplied by Annual Hours of Operation for each engine in fleet on compliance dat e since the previous year’s compliance date)] divided by [SUM of (Max Hp for each engine in fleet on compliance date multiplied by Annual Hours of Operation for each engine in fleet on compliance date since the previous year’s compliance date)]

Fleets that choose this option must have non-resettable hour meters on each

vehicle in the fleet and must include hour s in all index calculations for the compliance date.

(2)(3) Idling - The idling limits in section 2449(d )(3)2449(d)(2) shall be effective and enforceable immediately upon this regulatio n being certified by the Secretary of

State. Fleets must meet the following idling limits. (A) Idling Limit - No vehicle or engines subject to this regulation may idle for more than 5 consecutive minutes. Idling of a vehicle that is owned by a rental company is the responsibility of th e renter or lessee, and the rental agreement shouldshall so indicate. The idling limit does not apply to: 1. idling when queuing, 2. idling to verify that the vehicl e is in safe operating condition, 3. idling for testing, servicing, repairing or diagnostic purposes, 4. idling necessary to accomplish work for which the vehicle was designed (such as operating a crane), 5. idling required to bring the machi ne system to operating temperature, and 6. idling necessary to ensure sa fe operation of the vehicle. (B) Written Idling Policy - As of March 1, 2009, medi um and large fleets must also have a written idling policy that is made available to operators of the vehicles and informs them that idling is limited to 5 consecutive minutes or

less. (C) Waiver - A fleet owner may apply to the Ex ecutive Officer for a waiver to allow additional idling in excess of 5 consecutive minutes. The Executive23 Officer shall grant such a request upon finding that the fleet owner has provided sufficient justification that such idling is necessary.

(3)(4) Changing Fleet Size
– (A) Small fleets that become medium or large fleets must m eet the medium or large fleet requirements, respecti vely, on the reporting date two years subsequent to the year they becam e a medium or large fleet. (B) Large fleets that become medium fleets may meet either t he medium or large fleet requirements on the nex t reporting date. Large fleets that become small fleets may meet either the small or large fleet requirements on the next reporting date. (C) Medium fleets that becom e small fleets may meet eit her the small or medium fleet requirements on the next reporting date. Medi um fleets that become large fleets must meet the large fleet requirements on the reporting date two years subsequent to the year they became a large fleet.

(4)(5) New Fleets (A) New large and medium fleets – New large and medium fleets must meet the next large fleet average requirem ents in sections 2449.1(a)(1) and 2449.2(a)(1) immediately on purchasing vehi cles subject to the regulation or bringing such vehicles into the State of California for the fi rst time on or after January 1, 2012 March 1, 2009. New fleets do not have the option of complying with the BACT requirements in sect ions 2449.1(b) (a)(2) and 2449.2(a)(2) when they enter the State for the first time. For the next applicable compliance date that must be met, the new fleet can choose to meet either the fleet average require ments, or comply with the BACT requirements of section 2449.1(b). For ex ample, if a medium fleet enters the State of California on January 1, 2012, it must meet t he January 1, 2014, large fleet average requirements imm ediately upon entering the State. However, the next applicable compliance da te for this fleet is not until the first medium fleet compliance date of Januar y 1, 2017, at which time, the fleet may fulfill the compliance requirements by meeting either the fleet average requirements or the BA CT requirements. (B) New small fleets – New small fleets must meet the fleet average requirements in section 2449.1(a)(2) fo r the next small fleet compliance date immediately upon purchasing vehicles subj ect to the regulation or bringing

such vehicles into the Stat e of California for the firs t time on or after January 1, 2012. New small fleets do not have t he option of complying with the BACT requirements in section 2449.1(b) when they enter the State for the first time. For the next applicable compliance date that must be met, the new fleet can meet either the fleet average require ments, or comply with the BACT requirements. (C) All new fleets - New fleets must comply with the idling requirements in section 2449(d)(3)2449(d)(2), and the addi ng vehicle requirements in section 2449(d)(6), immediately upon purchasing vehi cles subject to the regulation or upon bringing such vehicles into the Stat e. New fleets must report vehicles24 subject to the regulation to ARB within 30 days of purchasing or bringing such vehicles into the State, in accor dance with the requirements in section 2449(g).

(5)(6) Fleet Ownership Transferred (A) New fleet owner - If ownership of an entire fleet a or fleet portion, which is complying and reporting separately per section 2449(c)(20), that is

transferred to a new fleet owner who did not own a fleet before the transfer of ownership and the fleet or fleet porti on was meeting the BACT requirements

in lieu of the fleet aver age requirements before the tr ansfer,is transferred to a

new fleet owner who did not own a fleet before the transfer of ownership, the fleet may continue to meet the BACT requirements. That is, transfer of ownership to a new owner who did not own a fleet before does not and is not required the fleet to begin meeting to meet the fleet aver age requirements in sections 2449.1(a)(1) and 2449.2(a)(1) or adding vehicle requirements in section 2449(d)(6) as new fl eets are required to do. If a new fleet owner who did not own a fleet before acquires a fleet or fleet portion that did not previously comply with the regulation, or acquires a fleet portion that is not complying and reporting separately per se ction 2449(c)(20), it must meet the new fleet requirements in section 2449(d)(4) above. (B) Existing fleets - Existing fleets may acquire other entire fleets or fleet portions which are complying and reporting separately per section 2449(c)(20), without condition if both t he existing fleet and the acquired fleets were in compliance with the individual fl eet requirements. If existing fleets acquire portions of fleets a fleet or fleet portion or entire fleets that did not previously comply with the regulation, however, or they acquire a fleet portion which is not complying and reporting s eparately per secti on 2449(c)(20), they must meet the requirements fo r adding vehicles in section 2449(d)(7)2449(d)(6) when add ing the entire fleet or fleet portion. ( C) Existing BACT credits – If ownership of a fleet or fleet portion, which is complying and reporting separately per se ction 2449(c)(20), is transferred to

a new fleet owner and the transferred fl eet or fleet portion had BACT credits, the new fleet owner may maintain the BACT credits of the acquired fleet if the acquired fleet or fleet porti on continues to comply and report separately. The new fleet owner may keep the acquired fl eet separate from the rest of the vehicles owned for the purposes of main taining credits even if the vehicles are under common ownership or control. If the new fleet owner combines the acquired fleet or fleet portion for co mpliance and reporting purposes with the rest of his vehicles, the acquired fleet or fleet portion shall maintain only the

credits accumulated from retrofits and repowers, and all other BACT credits shall expire immediately.

(6)(7) Adding Vehicles – With the exception noted below for fleets owned by lessors of vehicles, Tthe requirements in (A) to through (C) below apply to all fleets. Fleets owned by lessors are not subj ect to (A) through (C) for, except they do not apply to vehicles owned by a the le ssor and returned to the lessor fleet at25 the end of a lease, during wh ich if the vehicles were included in the fleet of the lessee for the compliance year in question. Vehicles returned to a lessor fleet must, however, be included in the lessor fl eet’s fleet average demonstration on subsequent compliance dates. For the purposes of this requirement, a vehicle may be assumed to meet the engine emissi on standard tier in effect for the model year of the engine. (A) Beginning March 1, 2009Ban on adding Tier 0s – Effective upon the

United States Environmental Prot ection Agency (U.S. EPA) issuing authorization for this regul ation,Beginning March 1, 2009 a fleet may not add a vehicle with a Tier 0 engine to its fl eet. The engine tier must be Tier 1 or higher. (B) Ban on adding Tier 1s – Beginning January 1, 2012, for large and medium fleets, a fleet may add a vehicle with a Tier 1 engine if and only if the vehicle has an equipment identification number (EIN) that ARB assigned to the vehicle prior to January 1, 2012, and both the fleet selling and the fleet purchasing the vehicle with the Tier 1 engine must have reported to ARB by January 1, 2012, or have enter ed the State of California for the first time after January 1, 2012. Beginning on January 1, 2013, for large and medium fleets, and January 1, 2016, for small fleets, a fleet may not add any vehicle with a Tier 1 engine. The engine tier mu st be Tier 2 or higher. (C) Ban on adding Tier 2s – Beginning January 1, 2018, for large and medium fleets, and January 1, 2023, fo r small fleets, a fleet ma y not add a vehicle with a Tier 2 engine to its fleet. The engi ne tier must be Tier 3 or higher. (B) Between the First and Final Target Dates - The following requirements apply between March 1, 2010 and March 1, 2020 for large fleets, between March 1, 2013 and March 1, 2020 for m edium fleets, and between March 1, 2015 and March 1, 2025 for small fleets. 1. Fleets Meeting the Target Rates - If a fleet met the fleet average target rates in sections 2449.1(a)(1) and 2449.2(a)(2) on the previous compliance date, when it adds a vehi cle to its fleet, the fleet must

demonstrate that the fleet still meets the fleet av erage target rates within three months of adding the vehicle. That is, fleets may not add vehicles

that cause them to exceed the most re cent fleet average target rates.

The added vehicle also must be in cluded in the fleet average demonstration required in sections 2449.1(a) and 2449.2( a) on the next compliance date. 2. Fleets Not Meeting th e Fleet Average Targets - If a fleet did not meet the fleet average requirements in sect ions 2449.1(a)(1) and 2449.2(a)(1) on the previous compliance date, the fleet may not add a vehicle to its fleet

that would further increase its emi ssions above the fleet average target rate, as described below. a. Large and Medium Fleets - A large or medium fl eet that met the BACT requirements in sections 2449.1(a )(2) and 2449.2(a)(2) instead of the fleet average requirements in se ctions 2449.1(a)(1) and 2449.2(a)(1) on the most recent compliance date may not add a vehicle to its fleet unless all of the following conditions are met:26 i. The engine is Tier 2 or higher. (For the purposes of this requirement, a vehicle may be assumed to me et the new engine emission

standard tier in effect for the m odel year unless the engine is a flexibility engine certified J anuary 1, 2007 or later to the implementation flexibility standar ds at title 13 CCR, section 2423(d), in which case the emi ssion standard tier to which the engine is certified should be used.). ii. The vehicle engine’s NOx Emission Factor (a fter being adjusted for any VDECS) is less than or equal to the NOx Target in Table 1 for engines in the same horsepower group for the most recent compliance date.
b. Small Fleets – A small fleet that met the BACT requirements in section 2449.2(a)(2) instead of the fleet average requirements in section 2449.2(a)(1) on the most recent compliance date may not add a vehicle to its fleet unless the following condition is met: The vehicle engine is Tier 2 or hi gher. (For the purposes of this requirement, a vehicle may be assumed to meet the new engine

emission standard tier in effect for t he model year unless the engine is a flexibility engine certified J anuary 1, 2007 or later to the implementation flexibility standards at title 13 CCR, section 2423(d), in

which case the emission standard tier to which the engine is certified should be used). (C) After the Final Target Date - Commencing respectively on March 1, 2020 for large and medium fleets, and March 1, 2025 for small fleets, no fleet owner may add a vehicle to his fleet, unl ess the vehicle is equipped with an engine meeting the Tier 3, Tier 4 interi m, or Tier 4 final emission standards.

(7)(8) VDECS Installation

– Before installing a VDECS on a vehicle, the fleet owner

must ensure that: (A) The VDECS is verified for use with the engine and vehicle, as described in

the Executive Order for the VDECS. (B) Use of the vehicle is consistent with the conditions of the Executive Order for

the VDECS. (C) The diesel emission control strategy is installed in a verified configuration. (D) The engine to be retrofit on which the VDECS is to be installed is tuned up so that it meets engine manufactu rer’s specifications prior to VDECS installation. (E) The VDECS label will be visi ble after installation.

(8)(9) VDECS Maintenance and Removal – If a fleet owner installs a VDECS to meet the requirements in section 2449.1(a) or 2449.2( a), the VDECS must be kept installed until the VDECS fails or is damaged unless the requirements below are met. Requirements for VDECS failure or damage are in section 2449(e)(1).

The owner of a vehicle retrofit with a VDECS must ensure all maintenance on the VDECS and engine is performed as required by the respective manufacturers. (A) Removal for safety or visibility purposes – If a fleet removes a VDECS for safety or visibility purposes, and that VDECS has not failed and is not27 damaged, the fleet may keep the BACT credit earned under section 2449.1(b)

for the installation of the removed VD ECS. If the fleet could not meet an applicable fleet average tar get for the most recent compliance date without the removed VDECS, the fleet owner must bring the fleet back into compliance within 90 days of the removal of the VDECS. (B) Removal for other purposes – If a fleet removes a VDECS for reasons other than safety or visibility purposes , and that VDECS has not failed and is not damaged, the fleet must forfeit any BACT credit earned under section 2449.1(b) from the installa tion of the removed VDECS. If the fleet could not meet an applicable compliance require ments under section 2449.1 for the most recent compliance date without the removed VDECS and the forfeited BACT credit, the fleet must bring the fleet back into compliance within 90 days of the removal of the VDECS.

(9)(10) Compliance After the Final Target Date

– (A) Commencing respectively on January 1, 2023 March 1, 2020, for large and medium fleets, and on January 1, 2028, for small fleets, if a large or medium fleet does not meet the app licable NOx fleet average tar get rate for the final target date in section 2449. 1(a)(1), the fleet must continue to meet the BACT turnover requirements in section 2449.1(b)(a)(2)(A) and report annually each year until it does so. BACT carryover credit earned in previous years cannot be used to meet compliance after the final target date. Vehi cles exempt from BACT under sections 2449.1(b)(2) and (3) are exempt from the requirements of this paragraph. (B) Except as provided below, commencing respectively on March 1, 2021 for large and medium fleets, and March 1, 2026 for small fleets, all vehicles in each fleet must be equipped with the hi ghest level VDECS. The vehicles

must be retrofit at the annua l retrofit rate required in section 2449.2(a)(2)(A)1. for BACT PM retrofits, and the fleet must report annually until all vehicles

have been retrofitted. In meeting the requirements of this paragraph, the fleet owner may not use any previously ac crued carryover PM re trofit credits. The following engines and vehicles are exem pt from the requirements of this paragraph: 1. Low-use vehicles, 2. Engines for which there is no highest level VDECS (i.e., for which there is no Level 2 or 3 VDECS, or for which there is a Level 2 or 3 VDECS which cannot be used without impairing the safe operation of the vehicle as demonstrated per section 2449(e)(8)), 3. Engines equipped with an original equipment manufacturer diesel particulate filter that ca me new with the vehicle, 4. Engines already retrofit with a Lev el 2 or 3 VDECS that was the highest

level VDECS available at time of installation, and 5. Vehicles in large and medium fleet s that have not ye t met the NOx fleet average target rate for the final ta rget date in section 2449.1(a)(1).28 (e) Special Provisions/Compliance Extensions

(1) VDECS Failure - In the event of a failure or damage of a VDECS, the following conditions apply: (A) Failure or Damage During the Warranty Period. If a VDECS fails or is damaged within its warranty per iod and it cannot be repaired, the fleet owner must replace it with the same level VD ECS or higher for the vehicle within 90 days of the failure. (B) Failure or Damage Ou tside the Warranty Period. 1. Before Final Target Date - If a VDECS fails or is damaged outside of its warranty period before January 1, 2023 March 1, 2021 for large and medium fleets, or before January 1, 2028 March 1, 2026 for small fleets, and cannot be repaired, and if the fleet could not meet an applicable fleet average target for the most recent compliance date without the failed VDECS, the fleet owner must re place the failed or damaged VDECS within 90 days of its failure, with the highest level VDECS available for the engine at time of failure. 2. After Final Target Date - If a VDECS fails or is damaged outside of its warranty period on or after January 1, 2023 March 1, 2021 for large and medium fleets, or on or after J anuary 1, 2028 March 1, 2026 for small fleets, and cannot be repaired, the fleet owner must replace the failed or damaged VDECS within 90 days of its failure with the highest level VDECS available for the engine at time of failure, regardless of whether the fleet met the applicable fleet aver age requirement for the most recent compliance date.

(2) Fuel-based Strategy VDECS - (A) If a fleet owner determines that the highest level VDECS for a large percentage of his fleet woul d be a Level 2 fuel verified as a diesel emission control strategy, and implem entation of this VDECS would require installation of a dedicated storage tank , then the fleet owner ma y request prior approval

from the Executive Officer to allow use of the level 2 fuel -based strategy

across its fleet. (B) Waiver for Discontinuation of Fuel Verified as a Diesel Emission Control Strategy. If a fleet owner has relied upon a fuel verified as a diesel emission control strategy to meet an applicabl e fleet average requirement and has to

discontinue use of the f uel due to circumstances beyond the fleet owner’s control, the fleet owner may apply to the Executive Officer no later than 30 days after discontinuing use of the fuel for a compliance waiver of up to two years to provide it time to return to compliance with the applicable fleet average requirement. The Executive Offi cer then has 30 days to act upon the request. Fleets that did not meet the applicable fleet average requirement in the most recent compliance year ma y not apply for this waiver.

(3) Exemption for Vehicles Used for Emergency Operations - Vehicles used solely for emergency operations are exempt from the performance requirements29 in sections 2449(d), 2449.1(a), 2449.2( a) and 2449.3(d)2449.2 but still must be labeled and reported in acco rdance with sections 2449(f) and (g). Vehicles used solely for emergency operations need not be included when calculating fleet average indices or target rates, when det ermining fleet size, or when calculating the required hphorsepower for the BACT tu rnover and retrofit requirements in sections 2449.1(b) (a )(2) and 2449.2(a)(2).

Owners of vehicles brought into Californ ia for emergency operations that last longer than three months must report such entry to ARB and request an equipment identificatio n number within three months of entering the sState. Vehicles used solely for emergency operations and that stay in California for less

than three months do not have to be labeled. For vehicles used both for emergency operations and for other purposes , hours of operation accrued when the vehicle is used for emergency oper ations do not need to be included when determining whether the vehicle meets the permanent or year-by-year low-use

vehicle definition.

(4) Special Provisions for Snow Removal Vehicles - Dedicated snow removal vehicles are exempt from the perform ance requirements in sections 2449(d), 2449.1(a), 2449.2(a) and 2449.3( d) 2449.2 but still must be labeled and reported in accordance with sections 2449(f) and (g ). Dedicated snow removal vehicles need not be included when calculating fleet average indices or target rates, when determining fleet size, or when calculat ing the required hphorsepower for the

BACT turnover and retrofit requirements in secti ons 2449.1(b) (a)(2) and 2449.2(a)(2). Publicly owned vehicles us ed exclusively to s upport snow removal operations (such as a loader without a special snow removal attachment), but

which do not meet the dedicated snow re moval vehicle definition (such as a loader without a special snow removal attachment), are exempt from the performance requirements in secti ons 2449(d), 2449.1,(a) 2449.2(a) and 2449.3(d)2449.2(d) but still must be labeled and reported in accordance with sections 2449(f) and (g).

(5) Use of Experimental Diesel Emission Control Strategies - If a fleet owner wishes to use an experimental, or non-veri fied, diesel emission control strategy, the owner must first obtain approval from the Executive Offi cer for a compliance extension. To obtain approval, the ow ner must demonstrate either that (A) a

VDECS is not available or not feasible or not safe for their vehicle or application, or (B) that use of the non- verified strategy is needed to generate data to support verification of the strategy. The owner or operator shall keep documentation of this use in records as specified by the Executive Officer. The application must

include emissions data and detailed cont rol technology description demonstrating the experimental control achieves at least a Level 2 diesel PM emission reduction. If the application demonstrates th at the strategy achieves at least 50 percent reductions in diesel PM, it may be treated like a Level 2 VDECS. If the application demonstrates t hat the strategy achiev es at least 85 percent reductions in diesel PM, it may be treated like a Level 3 VDECS. If the30 application demonstrates that the strategy achieves a NOx reduction over 15%, the NOx reduction may be counted.

Upon approval by the Executive Officer, each vehicle engine retrofit with the experimental strategy wil l be allowed to operate for a specified time period necessary to make a determination that the experimental strategy can achieve the projected emissions reductions. T he vehicle equipped wit h the experimental strategy will be considered to be in complia nce during the specified time period. A fleet owner who participates in an ex perimental diesel emission control program approved by the Executive Officer may retain carryover retrofit PMBACT credits or carryover turnover credits ac tually accumulated during the experiment, regardless of whether t he experiment achieved t he projected emissions

reductions or whether the strate gy is eventually verified. If a strategy installed in an experimental diesel emission cont rol program approved by the Executive Officer fails to be verified or is removed, it will no longer count in the fleet’s fleet average calculations. The fl eet owner must bring the fl eet into compliance prior to the expiration of the experimental dies el emission control st rategy extension.

(6) Compliance Extension for Equipmen t Manufacturer or Installer Delays - A fleet owner who has purchased new equipment (including VDECS) or vehicles in order to comply with this regulation, will be excused from immediate compliance if the new equipment or vehicles have not been received due to manufacturing or installer delays as long as all the conditions below are met: (A) The equipment or vehicl e was purchased, or the fl eet owner and seller had entered into contractual agreement for t he purchase, at least twofour months prior to the required compliance date, or – for a VDECS purchased to replace a failed or damaged VDECS – the fleet owner and seller had entered into contractual agreement for the purchase within 60 days of the VDECS failure. (B) Proof of purchase, such as a purchas e order or signed contract for the sale, including engine specifications for each applicable piece of equipment, must be maintained by the fleet owner and pr ovided to an agent or employee of ARB upon request. (C) The new equipment or vehicles are immediately placed into operation upon receipt. (D) Documentation from the manufacturer or the installer that there is a delay, such that the equipment or vehicle wi ll be received or installed after the compliance date.

(7) Exemption for Permanent and Year-by-year Low-Use Vehicles – Permanently designated and year-by-year l Low-use vehicles are exempt from the performance requirements in sect ions 2449(d)(4)2449(d)(3) through 2449(d)(6)2449(d)(5) and 2449(d)(8)2449(d) (7) through 2449(d)(10)2449(d)(9), 2449.1(a), 2449.2(a) and 2449.3(d)2449.2(d), but still must meet the idling limits in section 2449(d)(3)2449(d)(2) and adding vehicles requirements in section 2449(d)(7) and be labeled and reported in accordance with sect ions 2449(f) and (g). Permanent and year-by-year lLow-u se vehicles need not be included when31 calculating fleet average indices or target rates, when determini ng fleet size, or when calculating the required hphorsepower for the BACT turnover and retrofit requirements in sections 2449. 1(b). (a)(2) and 2449.2(a)(2).

Vehicles that formerly met the permanent low-use vehicle definition, but whose use increases to 100 200 hours per year or greater must meet the adding vehicles requirements in section 2449(d)(7)2449(d)(6) and meet the BACT requirements or be included in the fleet average calculation by the next compliance date. For exam ple, a formerly designat ed permanent low-use engine that exceeds 100200 hours per year betwe en January March 1, 20132015 and December 31, 2015 February 28, 2014 must be included in the fleet average indices and target rates reported in 20142016, and must also meet the adding vehicle requirements for that year. Vehicl es that formerly met the year-by-year low-use vehicle definition, but whose us e increases to 200 hours per year or greater do not have to m eet the adding vehicles r equirements in section 2449(d)(6), but must be included in the fleet average calculat ions by the next compliance date.

(8) VDECS That Impairs Safe Operation of Vehicle - A fleet owner may request

that the Executive Officer find that a VDECS shouldshall not be considered the highest level VDECS available because (A ) it cannot be safely installed or operated in a particular vehicl e application, or (B) its use would make compliance with federal or state require ments for safety or health , or an ongoing local air district permit condition, such as for use of a diesel oxidation catalyst, technologically infeasible. If a VDECS m anufacturer states that there is no safe or appropriate method of mounting its VD ECS on the requesting party’s vehicle,

then the VDECS will not be considered safe . The Executive Officer shall accept the official findings of the responsible f ederal or state agency (i .e., the federal or state agency that promulgates safety r equirements) that compliance with the requirements of this regulation would ma ke compliance with the federal and state safety or health requirement s technologically infeasible. In the absence of such a declaration by the VDECS manufacturer or official findings of a responsible federal or state agency, t he requesting party shall prov ide other documentation to support its claims. Documentation mu st include published reports and other findings of federal, state or local government agencies, independent testing laboratories, engine or equi pment manufacturers, or other equally reliable sources. The request will only be approv ed if the requesting party has made a thorough effort to find a safe method fo r installing and operating the VDECS, including considering the use of mirrors , various locations for VDECS mounting, and use of an actively regenerated VDECS. The Executive Officer shall review

the documentation submitted and any other reliable info rmation that he or she

wishes to consider and shall make hi s or her determination based upon the totality of the evidence. Upon finding t hat a VDECS cannot be installed without violating the safety standards prescribed under federal or st ate requirements for safety or health, the Executive Officer s hall issue a determination that there is no highest level VDECS available. The Exec utive Officer shall inform the requesting32 party, in writing, of his or her determi nation, within 60 days of receipt of the request. Parties may appeal the Executiv e Officer’s determination as described in (A) and (B) below. During the appeal pr ocess described in (A) and (B) below, the requesting party may reques t the administrative law judge to stay compliance

until a final decision is issued. If the stay is granted and the Executive Officer denies the requesting party’s request, the requesting party has six months from

the date of the Executive Officer’s final wr itten decision to bring his or her fleet back into compliance.

(A) Appeals – Hearing Procedures
- 1. Any party whose request has been den ied may request a hearing for the

Executive Officer to reconsider the ac tion taken by sending a request in writing to the Executive Officer. A request for hear ing shall include, at a minimum, the following: a. Nname of the requesting party; b. Ccopy of the Executive Officer’ s written notificat ion of denial;

c. Aa concise statement of the iss ues to be raised, with supporting facts, setting forth the basis for challenging the denial (conclusory allegations will not suffice); d. Aa brief summary of evidence in support of the st atement of facts required in c. above; and e. Tthe signature of an authoriz ed person requesting the hearing.
2. A request for a hearing shall be fil ed within 30 days from the date of

issuance of the notic e of the denial.
3. A hearing requested pursuant to this section shall be heard by a qualified and impartial hearing officer appointed by the Executive Officer. The hearing officer may be an employee of the ARB, but may not be any employee who was involved with the deni al at issue. In a request for reconsideration, the hearing officer, af ter reviewing the request for hearing and supporting documentation provided under paragraph 1. above, shall grant the request for a hearing if he or she finds that the request raises a genuine and substantial questi on of law or fact.
4. If a hearing is granted, the hearing o fficer shall schedule and hold, as soon as practicable, a hearing at a ti me and place determined by the hearing

officer.
5. Upon appointment, the hearing officer shall establish a hearing file. The file shall consist of the following: a. Tthe determination issued by the Exec utive Officer which is the subject of the request for hearing; b. Tthe request for hearing and t he supporting documents that are submitted with it; c. Aall documents relating to and relied upon by the Executive Officer in making the initial determination to deny the requesting party’s original claim; and d. Ccorrespondence and other documents material to the hearing.33 6. The hearing file shall be available for inspection by the applicant at the

office of the hear ing officer.
7. An applicant may appear in person or be represented by counsel or by any other duly-authorized r epresentative.
8. The ARB may be represented by staff or counsel familiar with the regulation and may present rebuttal evidence.

9. Technical rules of evidence shall not apply to the hearing, except that relevant evidence may be admitted and give n probative effect only if it is the kind of evidence upon which reasonab le persons are accustomed to relying in the conduct of serious affa irs. No action shall be overturned based solely on hearsay evidence, unl ess the hearsay evidence would be

admissible in a court of law under a legally recognized exception to the hearsay rule.
10. Declarations may be used upo n stipulation by the parties.
11. The hearing shall be recorded either electronically or by a certified shorthand reporter.
12. The hearing officer shall consider t he totality of the circumstances of the denial, including but not limited to, credi bility of witnesses, authenticity and reliability of documents, and qualificati ons of experts. The hearing officer may also consider relevant past c onduct of the applicant including any prior incidents involving other ARB programs.
13. The hearing officer’s written decision shall set forth findings of fact and conclusions of law as necessary.
14. Within 30 days of the conclusion of a hearing, the hearing officer shall submit a written proposed decision, in cluding proposed finding as well as a copy of any material submitted by t he hearing participants as part of that hearing and relied on by the hearing offi cer, to the Executive Officer. The hearing officer may recommend to t he Executive Officer any of the following: a. Uuphold the denial as issued; b. Mmodify the denial; or c. Ooverturn the denial in its entirety.

15. The Executive Officer shall render a final written decision within 60 working days of the last day of hear ing. The Executive Officer may do any of the following: a. Aadopt the hearing officer’s proposed decision; b. Mmodify the hearing office r’s proposed decision; or

c. Rrender a decision wit hout regard to the hearing officer’s proposed

decision. (B) Appeals – Hearing Conducted by Written Submission . In lieu of the hearing procedure set forth in (A) above, an applicant may request that the hearing be conducted solely by writt en submission. In such case the requestor must submit a written expl anation of the bas is for the appeal and provide supporting docum ents within 20 days of making the request. Subsequent to such a submission the following shall transpire:34 1. ARB staff shall submit a written response to the requestor’s submission and documents in support of the Executive Officer's action no later than 10 days after receipt of re questor’s submission;
2. The applicant may submit one r ebuttal statement which may include supporting information, as attachment (s), but limited to the issues previously raised;
3. If the applicant submits a rebutta l, ARB staff may submit one rebuttal statement which may inclu de supporting information, as attachment(s), but limited to the issues previously raised; and
4. The hearing officer shall be designated in the same manner as set forth in section 2449(e)(8)(A)3. above. The hearing officer shall receive all

statements and documents and submit a proposed written decision and

such other documents as described in section 2449(e)(8)(A)13. above to

the Executive Officer no later than 30 working days after the final deadline for submission of papers. The Executive Officer’s final decision shall be mailed to the applicant no later than 60 days after the final deadline for submission of papers.
5. The Executive Officer shall render a final written decision within 60 working days of the last day of hearing. T he Executive Officer may do any of the following: a. Aadopt the hearing officer’s proposed decision; b. Mmodify the hearing office r’s proposed decision; or

c. Rrender a decision wit hout regard to the hearing officer’s proposed

decision.

(9) Compliance Flexibility for Delays in Ava ilability of Tier 3 or Tier 4 Vehicles

If the Executive Officer finds t hat there is a delay in av ailability of vehicles with engines meeting the Tier 3 or Tier 4 inte rim or final emission standards so that

vehicles with Tier 3 or Tier 4 interim or final engines to meet a fleet’s needs are

not available or not available in suffi cient numbers or in a sufficient range of makes, models, and sizes, then the Execut ive Officer may gran t an extension to the fleet from the requi rements in sections 24 49.1(a)(1), 2449.2(a)(1), 2449.1(a)(2) and 2449.2(a)(2). If such a delay affects a group of fleets, the Executive Officer may issue an extension to a ll fleets with similar characteristics. Any such delay must be documented bas ed on verifiable information from the fleet regarding its vehicle needs and/or verifiable info rmation from the equipment manufacturer, engine manufacturer, dist ributor, and/or dealer regarding the unavailability of appropriate vehicles with Tier 3 or Tier 4 interi m or final engines.

(10) Exemption for Ve hicles Awaiting Sale - Vehicles in the possession of dealers, financing companies, or other entit ies who do not intend to operate the

vehicle nor offer the vehicle for hire , that are operated only to demonstrate functionality to potential buyers or to move short distances while awaiting sale or for maintenance purposes are exempt from all requirements in sections 2449, 2449.1, and 2449.2, and 2449.3.35 (11) Exemption for Vehicle Used O ver Half the Time for Agriculture - A vehicle that is used by its owner for agricultura l operations for over half of its annual operating hours but that is not used excl usively for agricultural operations is exempt from the performance requirem ents in section 2449(d), 2449.1(a), and 2449.2(a), and 2449.2, but still must be labeled and reported in accordance with sections 2449(f) and (g). Vehicles us ed exclusively for agricultural operations are completely exempt from the performance, labeling, and reporting requirements. A vehicle that is rented or leased for use by others is exempt only if it is exclusively used for agricultural operations.

(12) Exemption for Vehicles Used Sole ly on San Nicolas or San Clemente

Islands - Vehicles used solely on San Nicolas or San Clemente Islands are exempt from all requirements in secti on 2449, 2449.1, and 2449.2. If the land use plans for the islands are changed to allow use by the general public of the islands, this exemption shall no longer be applicable.

(13) Exemption for Job Corps Vehicles – Vehicles used by the Job Corps nonprofit apprenticeship trai ning program are exempt from the performance requirements in sections 2449(d), 2449. 1(a), 2449.2(a) and 2449.3(d)2449.2 but still must be labeled and reported in accor dance with sections 2449(f) and (g).

(14) Two-Engine VehiclesCranes – Both engines in a two-engine crane are subject to this regulation. For purposes of the rounding provis ions in section 2449.1(b)(5)(a)(2)(a)7., if a tw o-engine vehicle is subject to this regulation, under section 2449(b), neither engi ne in the two-engine vehiclecrane is required to be turned over until the hphors epower required to be turned over under section 2449.1(b)(a)(2)(A) is at least half the su m of the max hpmaximum power of the primary and auxiliary secondary engine in the two-engine vehiclecrane.

(15) On-road Registered Ve hicles with Off-road Engines – If a workover rig or other on-road registered vehicle subject to this regulation wit h an off-road engine is repowered and will be regi stered and driven on-road, it must be repowered with an on-road certified engine of the sa me model year or newer as the engine being replaced.

(16) Two-Engine Water Well Drilling Rigs – Both engines in a two-engine water well drilling rig are subject to this r egulation. For the pur poses of the rounding provisions in section 2449.1(a)(2)(a)7, neither engine in the two-engine water well drilling rig is required to be tur ned over until the horsepower required to be turned over under section 2449.1(a)(2)(A) is at least half the sum of the maximum power of the primary and se condary engine in the two-engine water well drilling rig.

(16) Fleets with 500 hp or less – Fleets with 500 hp or less total max hp may meet the optional compliance schedule listed bel ow in Table 1 instead of the small fleet requirements in 2449.1(a)(2) and 2449.1(b) . This percent of engine hp must36 be met or exceeded, and the rounding prov isions in section 2449.1(b)(5) do not apply. For compliance with this section, all vehicles in the fleet must be included; no vehicles qualify for the exempt ions listed in section 2449(e).

Table 1 – Optional Compliance Schedul e for Fleets with 500 HP or Less

Compliance Date: January 1 of Year Percent of Fleet (by hp) Which Must Have a Tier 2 or Higher Engine

2019 25

2022 50

2026 75

2029 100

Fleets with 500 hp or less may choose to co mply with either the above optional compliance schedule or the small fleet require ments. If the fleet alternates from the BACT schedule to the opti onal compliance path above, the fleet must comply with the most recent past requirements of the optional compliance schedule. For example, a fleet switching to the opt ional compliance schedule above in 2025 must meet the 2022 requirements of the optional compliance schedule immediately upon switching to the opt ional compliance schedule. A fleet switching to the fleet average or BACT requirements from the optional compliance schedule must begin meet ing the fleet average or BACT requirements for small fleet s on the next compliance date for small fleets. If a fleet grows larger than 500 hp, that fleet must begin meeting the fleet average or BACT requirements for small fleets on the next compliance date for the applicable fleet size category.

(17) Public funds for purchases, repowers, or retrofits – Notwithstanding sections 2449, 2449.1 and 2449.2, the purc hase of a replacement v ehicle, repower, or a retrofit with public funds shall be count ed toward the fleet average or BACT requirements in accordance with funding program guidelines applicable to the particular source of public funds used for the purchase. This may in some cases limit credit to single rather than double credit.

(f) Labeling

–

All vehicles with engines subject to the regul ation must be labeled with an ARB-issued equipment identification number (EIN). Electric and alter native fuel vehicles, stationary or portable systems, and gasolin e-powered vehicles used to replace diesel vehicles under section 2449(d)(1)(C) must also be labe led with an ARB-issued EIN. ARB will issue unique EIN to the fleet owner for eac h vehicle subject to the regulation in response to the initial reporting described in section 2449(g)(1) and, for vehicles added in the 30 days before the annual reporting date, the an nual reporting described in section 2449 (g)(2). Vehicles with two engine s that provide motive power will receive two EINs. Vehicles with two engines where one provides motive power and the other is an auxiliary engine will receive one EIN. All ow ners of vehicles subj ect to the regulation must comply with the followin g labeling requ irements.37 (1) Application for EIN for added vehicle – Notwithstanding the requirements for vehicles used for emergency operations in section 2449(e)(3), if a fleet owner

adds a vehicle to his California fleet or brings a vehicle into California from outside the sState, the fleet owner has 30 days from the date of purchase or the date the vehicle enters California to apply to ARB for an EIN or, if the vehicle already has an EIN, to inform ARB of t he purchase using forms approved by the Executive Officer for submittal of required reporting information. If the reporting date under section 2449(g)(2) occurs bef ore 30 days after purchase, the annual reporting may serve as the application for an EIN.

Applications for an equipm ent identification number shouldshall be submitted electronically per the guide lines approved by the Exec utive Officer for electronic data reporting, or mailed or delivered to ARB at the address listed immediately

below:

California Air Resources Board Mobile Source Control Division (In-Use Off-road Diesel)

P.O. Box 2815 Sacramento, CA 95812.

(2) Affixing Equipment Identification Number – Within 30 days of receipt of the ARB-issued EIN, fleet owners shall perman ently affix or paint the EIN(s) on the vehicle in clear view according to the following specification: (A) The EIN shall be white on a red backg round, unless the vehicle is part of a captive attainment area fleet, in which case the EIN shall be white on a green background. (B) The EIN shall be located in clear view on the right (star board)both sides of

the outside of the vehicl e approximately 5 feet above the ground, or, if the vehicle is not 5 feet tall, lower on the vehicle. (C) Each character shall be at least 3 inc hes (7.6 centimeters) in height and 1.5 inches (3.8 centimeters) in width. (D) The EIN shall be maintained in a m anner that retains it s legibility for the

entire life of t he vehicle. (E) Vehicles reported to ARB prior to January 1, 2013, may apply a label to the right (starboard) side of the vehicle only, except that the vehicle must have an identical EIN label placed on the left ( port) side of the vehicle before January 1, 2013. (F) Vehicles that are part of a captive attainment area fleet and reported to ARB prior to January 1, 2013, may be labeled with an EIN that is in white on a red background, except that the vehicle must have the EIN label replaced by one displaying white on a green background, on each side of the vehicle, before January 1, 2013.

(g) Reporting
–38 Reporting is required for each and every fl eet. Large and medium fleets may report separately for different divisions or subsidia ries of a given company or agency. Fleet owners may submit reporting information using forms (paper or electronic) approved by

the Executive Officer.

(1) Initial reporting – All fleet owners must subm it the information in section 2449(g)(1)(A) through (HG) to ARB by their initial reporti ng date. In the initial reporting, fleet owners must report informa tion regarding each vehicle subject to this regulation that was in their fleet on March 1, 2009. S ystems or non-diesel fueled vehicles that are used in place of a vehicle that would be subject to this regulation must also be report ed. The initial reporting dat e for large fleets is April 1, 2009. The initial reporti ng date for medium fleets is June 1, 2009. The initial reporting date for small fleets is A ugust 1, 2009. Notwithstanding the aforementioned reporting dates, the in itial reporting date for two-engine vehicleswater well drilling rigs is Marc h 1, 2012April 1, 2011. Reports must include the following information: (A) Fleet Owner
– 1. Fleet owner’s name; 2. Corporate parent name (if applicable); 3. Corporate parent taxpayer iden tification number (if applicable); 4. Company taxpayer identification number; 5. Address; 6. Responsible person name; 7. Responsible person title; 8. Contact name; 9. Contact phone number; 10. Contact email address (if available);

11. Whether the fleet owner is a low population county local municipality fleet;

12. Whether the fleet owner has an approval from the Executive Officer to be treated as if in a low-population county;

13. Whether the fleet owner is a non-profit training center;

14. Whether the fleet has an idling policy doc umented and available to employees; 15. Whether the fleet is using a fuel- based strategy as an emissions control strategy; 16. Whether the fleet is a cCapt ive aAttainment aArea fFleet. (B) Vehicle List – A list of each vehicle subject to this regulation along with the following information for each vehicle: 1. Vehicle type; 2. Vehicle manufacturer; 3. Vehicle model; 4. Vehicle model year;

5. Vehicle serial number (i.e., for workover rigs and on-road two-engine cranesvehicles, and two-engine wate r well drilling rigs, vehicle identification number); 6. Whether the vehicle is a permanent or year-by-year low-use vehicle;39 7. If the vehicle is a permanent or yea r-by-year low-use vehicle, whether the vehicle was operated outside of Californ ia during the previous compliance

year; 8. Whether the vehicle is a specialty vehicle;

9. Whether the vehicle is a vehicl e used solely for emergency operations; 10. Whether the vehicle is a dedicated snow removal vehicle; 11. Whether the vehicle is used for agricul tural operations for over half of its annual operating hours;

12. Whether the vehicle is an electric vehi cle that replaced a di esel vehicle;

13. Whether the vehicle has had a VD ECS installed, or been retrofit, repowered, or replaced with Surplu s Off-road Opt-in for NOx program funding and, if so, the start and end dates of the contract period;

14. Whether the vehicle has had a VD ECS installed, or been retrofit, repowered, or replaced with Carl Moyer program funding;

15. Whether the vehicle has had a VDEC S installed been retrofit through a demonstration program, and - if so - which program;

16. EIN if it has al ready been assigned.; 17. License plate number, if vehicle has a license plate.;

18. Whether the vehicle has a VDEC S safety exemption per section 2449(e)(8); 19. Whether the vehicle is exempt fr om the BACT requirements per section 2449.1(b)(2)(E) for the early installati on of a highest level PM VDECS. (C) Engines - For each engine that powers a vehicle listed per section 2449(g)(1)(B), or is an auxiliary engine in a two-engine vehicle that is subject to this regulation per section 2449( b), report the following information. 1. Engine manufacturer; 2. Engine model; 3. Engine family (if any); 4. Engine serial number; 5. Engine model year; 6. Engine max hpm aximum power; 7. Engine displacement; 8. Whether the engine is a repower and – if so – date repowered; 9. Whether If the engine is a Post-2007 flexibility engine; 10. Whether the engine is, an engine cert ified to on-road standards, or an engine certified by ARB or U.S. En vironmental Protection Agency to a

lower emission standard than shown in Appendix A, the emission standard to which the engine is certified and t he certification Executive Order or certificate number; 1110. Whether the engine has been rebuilt to a more stringent emissions configuration. (D) Verified Diesel Emi ssion Control Strategies - For each VDECS that is installed on an engine list ed per section 2449(g)(1)(C) report the following

information. 1. VDECS mManufacturer; 2. VDECS fFamily;40 3. Verification level; 4. Verified percent NOx reduction (if any); 5. Date installed;

6. VDECS sSerial nNumber. (E) Non-Diesel Vehicle Used in Place of a Diesel Vehicle

- For each electric, alternative fueled, or gasol ine fueled vehicle, report the information listed in sections 2449(g)(1)(B)1. thr ough 2449(g)(1)(B)5. and sections 2449(g)(1)(C)1. through 2449( g)(1)(C)6. as well as 1. Date purchased; 2. If the vehicle replaced a diesel vehicle in the fl eet, the hphorsepower of the diesel vehicle replaced and the date replaced; 3. If not electric, the NOx and PM emission factor; (F) Stationary or Portable Systems Used in Place of a Diesel Vehicle - For stationary or portable system s that are used in place of a diesel vehicle, report the followin g information: 1. Description of the system; 2. Type and number of vehicles that would otherwise be used; 3. HpHorsepower of the vehicle( s) that would otherwise be used; (G) Credit for Early Actions - Fleet owners claiming credit for early action must report information required under sections 2449(g)(1)(B)1. through 2449(g)(1)(B)5. and sections 2449(g)(1 )(C)1. through 2449(g)(1)(C)6. for

each vehicle for which credit is claim ed. As appropriate, the following information must also be reported:

1. For each vehicle within the fleet t hat was repowered with a Tier 1 or newer engine prior to March 1, 2009, the date of repower;

2. For each vehicle within the fleet t hat was retrofit with the had the highest

level PM VDECS installed available at t he time of retrofit prior to March 1, 2009, the date of installation retrofit and whether Carl Moyer Incentive Program funding was used to pay for the VDECS retrofit; 3. Fleet owners claiming early credit fo r retirement or replacement of any vehicles per under section 2449. 1(b)(14)(a)(2)(A )(2)a.ii., or 2449.1(b)(16)(a)(2)(A)(2)a.v. or 2449. 2(a)(2)(A)(2)a.iv. must report information on each and every vehicle within the fleet between March 1, 2006, and March 1, 2010, as required under sections 2449(g)(1)(B)1. through 2449(g)(1)(B)45. and secti ons 2449(g)(1)(C)1. through 2449(g)(1)(C)6. as well as the date of any purchase and/or retirement between March 1, 2006 and March 1, 2010. 4. Fleet owners claiming credit for reduc ed activity in the fleet per section 2449.1(a)(2)(A)(2)a.iv. or 2449.2(a)(2)(A )2.a.iii. must report to the

Executive Officer the total hours of use for each vehicle in the fleet, excepting vehicles claimed for early retirement credi t, for the twelve month period January 1, 2007, to De cember 31, 2007 as well as the twelve month period March 1, 2009, to February 28, 2010. Fleets that do not have hourly reporting records of each vehicle in the fleet must submit to the Executive Officer copies of information that is verifiable and41 substantively demonstrates a reduction in fleet activity from July 1, 2007, to March 1, 2010. (H) Equipment Purchased, Repowered, Retrofitted, or Otherwise Funded or Partially Funded Using Public Funds
- For owners of equipment or vehicles that were purchased, repowered or retr ofitted using public funds and where funding program guidelines include criter ia that limit funded projects from receiving regulatory benefit or credit, in addition to the information provided in sections 2449(g)(1)(A) through (D), the fl eet owner must provide the following

information for each vehicle: 1. Date the public funding contract began; 2. Date the public funding contract ends; 3. Program providing the funding; and 4. Contract terms specifying the limitati ons for receiving regulatory benefit or credits for the funded equipment.

(2) Annual Reporting and Compliance Ce rtification Respon sible Official Affirmation of Reporting – All fleet owners must review and update the

information submitted under secti on 2449(g)(1) annually, and submit the information in section 2449(g)(2)(A) thr ough (C) to ARB by t he reporting date of each subsequent reporting year. The lar ge fleet reporting date for all fleets is March 1April 1, the medium fleet repor ting date is June 1, and the small fleet reporting date is August 1. Fleet owners must report information regarding each vehicle subject to this regulation as it was on December 31 Ma rch 1 of the year prior to the reporting year (for exampl e, by March 1, 2018, fleets must report

each vehicle as it was at the end of the day on December 31, 2017). Large fleets must report annually each year from 2010 to 2021 2012 to 2023. Medium fleets must report annually each year 2012 to 20212016 to 2023. Small fleets must report annually each year from 2014 to 20262018 to 2028. Any fleet that fails to meet the fleet average target rate for the final target date in section 2449.1(a)(1) or 2449.2(a)(1) must continue to report annua lly each year until it does so. After the final target date in 2449.2(a)(1), any fleet that is required to apply VDECS under section 2449.2(a)(2) must continue to report each year until the March 1 after all such retrofits are complete . Any fleet that operates permanent designated or year-by-year low-use vehicl es must continue to report annually for each permanent or year-by-year low-use vehi cle for as long as the fleet owns or operates the vehicle. Fleets may use fo rms (paper or electronic) approved by

the Executive Officer for submittal of the required reporting information. (A) Compliance Certification Responsible Official Affirmation of Reporting – Each year that annual reporting is requi red, a fleet shall submit to ARB Aan affirmation certification signed by a respons ible official or a designee thereof that the information reported is accurate and that the fleet is in compliance with the regulation. The ce rtification affirmation must be submitted on a form (paper or electronic) approv ed by the Executive Officer. If a designee signs the compliance certification affirmati on of reporting, a written statement signed by the responsible official desig nating the designee must be attached to the compliance certification affirmation of reporting and s ubmitted to ARB.42 This written statement designating t he designee must only be attached the first time a designee signs the affirmati on of reporting. If a new designee is appointed at a later time, another writt en statement signed by the responsible official designating a new designee must be submitted. If the fleet is a Ccaptive Aattainment Aarea Ffleet, the certification affirmation must certify

that the fleet’s vehicles did not operate outside the counties listed in 2449(c)(6) in the prior year. If the respons ible official or designee is the same for several fleets or fleet portions, the re sponsible official or designee has the option of submitting a single affirmation fo r these fleets, as long as the single affirmation appropriately identifies each fleet covered by the affirmation. (B) Changes Since Last Reporting - If any information reported per section 2449(g)(1) has changed since either the in itial or last annual report filed with ARB, the fleet owner must, in its nex t annual report identify such changes. Such changes include vehicles removed from the fleet, vehicles added to the fleet through purchase or by bringing into California, vehicles newly designated as permanent or year-by-year low-use or specialty vehicles, repowers, and VDECS installe d retrofits, and VDECS removed. If there are no changes, the fleet sha ll indicate that there have been no changes since the last report. (C) Engine Hour Meter Readings – Engine hour meter readings must be reported for each engine in the following cases.

1. If the fleet has chosen the hours in fleet average option, the fleet owner shall report two engine hour meter r eadings, one from on or before March 1 of the prior year and one from on or after March 1 of the current year, and the dates of reading for every engine in the fleet.

1.2. For vehicles that fleet owners in tend to designate as year-by-year lowuse, report two engine hour meter r eadings, one from on or before January 1 March 1 of the prior year and one from on or after December 31

March 1 of the current prior year, and the dates of reading. If using the three-year rolling average definition of year-by-y ear low-use, report two hour meter readings, one fr om on or before January 1 March 1 of the first year of the three year period and one from on or after December 31 March 1 of the third year current year. For vehicles that fleet owners intend to designate as permanent low-use vehicles, report one engine hour meter reading from on or before January 1 of the current year. For each year thereafter, report the engine hour meter reading from on or after December 31 of the prior year. Permanent and year-by-year lLow-use vehicles used in emergency operations, must report the total hours used in emergency operations. Additionally, for vehicles designated as permanent or year-by-year low-use that operate both inside and outside California, the fleet owner shall subm it a log that contains the following

information.

a. Each date the vehicle entered Ca lifornia and the hour meter reading upon entry;

b. Each date the vehicle exited Ca lifornia and the hour meter reading upon exit.43 2.3. For vehicles that are used in agric ultural operations, th e fleet owner shall report two engine hour meter readi ngs, one from on or before January 1 March 1 of the prior year and one fr om on or after December 31 March 1 of the prior current year , and the dates of such readings. Also the fleet owner shall report, the total number of hours the vehicle has been used in non-agricultural use.

(3) New Fleet Reporting – New fleets must submit the information in section 2449(g)(1)(A) through (HG) to ARB for vehi cles subject to the regulation within 30 days of purchase or bringing such vehicles into the State. Beginning the first January 1 March 1 that is more than 30 days after the date of purchase or bringing a vehicle into the State, new fleets must comply with the annual reporting requirements in section 2449(g)(2).

(4) Selling Vehicles – Any person selling a vehicle with an engine subject to this regulation in California mu st notify ARB within 30 days from the date the vehicle was sold. If the reporting date under sect ion 2449(g)(2) occurs within 30 days of the vehicle being sold, the annual reporting may serve as the notification to ARB

that the vehicle was sold.

(h) Record keeping
–

Fleet owners must maintain copies of the information reported under section 2449(g),

as well as the records described in secti on 2449(h) below, and provide them to an agent or employee of the ARB within five busi ness days upon request. Records must be kept

at a location within the State of California.

(1) Changes Since Last Reporting Period - Documentation of any additions, deletions, or changes to the fleet since the last reporting. Documentation may include bills of sale, purchase orders, or other documentation.

(2) Vehicles Not Yet Labeled - For newly purchased or acquired vehicles or vehicles recently brought into the sS tate that have not yet been labeled per section 2449(f)(2), records mu st be kept of the vehicle purchase date or the date

the vehicle entered the sState.

(3) Engines Rebuilt to a More St ringent Emissions Configuration - Records of engines that are rebuilt to a more stringent emissions configuration in accordance with Title 40, CFR, Part 89.130 and Part 1068.120 must be kept as long as the engine remains in operation. Fo r a fleet to claim cr edit for rebuild to a more stringent emissions configuration of a Tier 1 engine rated at or above 37 kW that is exempt from t he requirements in Title 40, CFR, Part 89.130 and title 13, CCR, section 2423(l), the Tier 1 engi ne must be rebuilt in accordance with the rebuild practices of those sections and the fleet must keep the records that would have been required if the engi ne were not exempt from those requirements. Records must include the following information:44 (A) The name of the company that performed the rebuil d, address, contact name, and contact phone number for that company; (B) An invoice, or proof of pur chase of the engine rebuild; (C) The date(s) the engi ne upgrade was performed; (D) All records required under Title 40, CFR, Part 1068.120 or, for engines exempt from Title 40, CF R, Part 1068.120, the record s that would be required if the engine were not exempt; (E) All records required under title 13, CCR, section 2423(l) or, for engines exempt from 13, CCR, section 2423(l), t he records that would be required if the engine were not exempt.

(4) VDECS Failure – Records of any VDECS failure and replacement.

(5) VDECS Removal – Records of any VDECS remov ed from a vehicle, including

the date and reason for removal.

(6) (5) VDECS Serial Numbers – Records of the serial numbers of the VDECS

installed on each vehicle.

(7) (6) Manufacturer Delay – For any vehicles or VDECS for which the fleet owner is utilizing the equipment manufacturer delay pr ovision in section 2449(e)(6), proof of purchase, such as a purchase order or signed contract for the sale, including engine specifications for each applicab le piece of equipment or vehicle.

(8) (7) Records Pertaining to Executive Officer Approval – Records of Executive Officer approval of any of the following: (A) A waiver to allow additional idli ng in excess of 5 consecutive minutes; (B) Upon discontinuation of a fuel veri fied as a dDiesel eEmission cControl sStrategy, approval for up to two year s additional time to come back into compliance with the applicable fleet average requirement; (C) A finding that a VDECS shouldshal l not be considered the highest level VDECS available due to safety concerns; (D) Approval to use the max hpmaximum pow er of a diesel vehicle that serves the same function as an electric vehicle; (E) Approval of an alternative f uel vehicle NOx emission standard; (F) Approval of a vehicle desig nation as a specialty vehicle; (G) Approval of and experimental diesel PM control strategy; (H) Approval to grant an extension to t he fleet from the requi rements when Tier 3 or Tier 4 (interim or final) vehicles are not available; (I) Approval to use a fuel strategy as an emissions control strategy as in section 2449(e)(2);

(8) Credit for Reduced Activity – Each fleet owner that claims credit for reduced

fleet activity with vehicle specific data per sections 2449.1(a)(2)(A)(2)a.iv. or 2449.2(a)(2)(A)2.a.iii. shall maintain the records setting forth the total hours of

use of each vehicle in the fleet for each of the twelve month periods indicated in45 2449(g)(1)(G)4. A fleet that submits non-v ehicle specific data claiming credit for reduced fleet activity, per sect ions 2449.1(a)(2)(A)(2)a.v. or 2449.2(a)(2)(A)(2)a.iv., mu st keep a record of all of the information submitted to ARB to support its claim of reduced fleet activity.

(9)(9) Credit for Early Retirement or Replacement – Each fleet owner that claims

credit for the retirement or replacement of vehicles from March 1, 2006, to March 1, 2010, perunder sections 2449.1(b)(14)(a)(2 )(A)2.a.ii. or 2449.1(b)(16)(a)(2)(A) (2)a.v. or 2449.2(a)(2)(A)(2)a.iv shall main tain records substantiating the fleet’s claim of previous ownership for those vehicles.

(10) Record Retention – Each fleet owner shall maintain the records for each vehicle subject to the regulat ion and for the overall fleet as long as the owner has a fleet or January 1 March 1, 2030, whichever is earlier. If vehicle ownership is transferred, the seller shall convey the vehicle records including vehicle data perunder section 2449(g)(1)(B), engine dat a perunder section 2449(g)(1)(C), and VDECS data perunder section 2449(g)(1)(D) to the buyer. If fleet ownership is transferred, the seller shall convey the fl eet records including fleet data perunder sections 2449(g)(1)(A) through (GH) to t he buyer. Any person selling a vehicle with an engine subject to this regulation in California must maintain records of the disclosure of regulation applicability requi red by sSection 2449(j) for three years

after the sale.

(i) Right of Entry
–

For the purpose of inspecting off-road v ehicles and their records to determine compliance with these regulations, an agent or employee of ARB, upon presentation of proper credentials, has the right to enter any facility (with any necessary safety clearances) where off-road vehicles are locat ed or off-road vehicle records are kept.

(j) Disclosure of Regulation Applicability
–

Any person selling a vehicle with an engine subjec t to this regulation in California must provide the following disclosure in writi ng to the buyer on the bill of sale, “When operated in California, any off-road diesel vehicle may be subject to the California Air

Resources Board In-Use Off-road Diesel V ehicle Regulation. It therefore could be subject to retrofit or accelerated turnov er requirements to reduce emissions of air pollutants. For more info rmation, please visit the Calif ornia Air Resources Board website at http://www.arb.ca.gov /msprog/ordiesel/ordiesel.htm.”

(k) Penalties
–

Any person who fails to comply with the per formance requirements of this regulation, who fails to submit any information, report, or statement required by this regulation, or who knowingly submits any fals e statement or repr esentation in any application, report, statement, or other docu ment filed, maintained, or used for the purposes of compliance46 with this regulation may be subject to civil or criminal penalties under sections 39674, 39675, 42400, 42400.1, 42400.2, 42400.3.5, 42402, 42402.1, 42402.2, 42402.4, 42403, and 43016 of the Health and Safety Code. In assessing penalties, the Executive Officer will consider factors, includi ng but not limited to the willful ness of the violation, the length of time of noncompliance, whether t he fleet made an attempt to comply, and the magnitude of noncompliance.

(l) ARB Certificate of Reported Compliance
–

After the initial reporting required by section 2449(g)(1) and the annual reporting and compliance certification responsible official affirmation of reporting required by section 2449(g)(2) is received by ARB, if the reporti ng and affirmation indicates the fleet is in compliance with the requirements of the R egulation for In-Use Off-Road Diesel-Fueled Fleets in-use off-road diesel vehicle regul ation, ARB will prov ide the fleet with a Certificate of Reported Compliance with the Regulation for In -Use Off-Road DieselFueled FleetsIn-Use Off-road Die sel Vehicle Regulation.

(m) Severability
–

If any subsection, paragraph, subparagraph, s entence, clause, phrase, or portion of section 2449, 2449.1, or 2449.2, or 2449.3 of this regul ation is, for any reason, held invalid, unconstitutional, or unenforceable by any court of competen t jurisdiction, such portion shall be deemed as a separate, dist inct, and independent provision, and such holding shall not affect the validity of the remaining por tions of the regulation.

** Note: Authority cited: Sections 39002, 39515, 39516, 39600, 39601, 39602, 39650, 39656, 39658, 39659, 39665, 39667, 39674, 39675, 40000, 41511, 42400, 42400.1, 42400.2, 42400.3.5, 42402, 42402.1, 42402.2, 42402.4, 42403, 43000, 43000.5, 43013, 43016, 43018, and 43018.2, Health and Safety Code. Reference: Sections 39002, 39515, 39516, 39600, 39601, 39602, 39650, 39656, 39657, 39658, 39659, 39665, 39667, 39674, 39675, 40000, 41 511, 42400, 42400.1, 42400.2, 42402.2, 43000, 43000.5, 43013, 43016, 43018, and 43018.2, Health and Safety Code.47 § 2449.1. NOx Perfo rmance Requirements

(a) Performance Requirements

Each fleet must meet the fl eet average requirements in th is section beforeby January March 1 of each year or demons trate that it met the best available control technology (BACT) requirements as described in se ction 2449.1(b)(a)(2). There are differing requirements for large and medium fleets. Small fleets are not subject to the NOx performance requirements.

If various portions of a fleet are under the control of different responsible officials because they are part of diffe rent subsidiaries, divisions , or other organizational structures of a company or agency, the fleet portions may comply with the performance requirements separately and be reported separ ately. A fleet may have some fleet portions that meet the definition of captive attainment area fleet and some fleet portions that do not. However, the total maximu m power of the vehicles under common ownership or control determines the fleet size . Once a fleet begins to comply and report separately as fleet portions, the fleet por tions must continue to comply and report separately, and the fleet porti ons must meet the adding vehi cle requirements in section 2449(d)(7) just as if they were separate fleets.

Captive attainment area fleets, and fFleets ow ned by non-profit trai ning centers or lowpopulation county local muni cipalities are subject to the sm all fleet requirements, even if their total max hpmaximum power exceeds 2,500 hphorsepower. Captive attainment area fleets are not subjec t to the NOx performance requirements. Section 2449(d)(4)2449(d)(3) describes require ments for fleets that change size.

(a) (1) Fleet Average Requirements (A) Fleet Average Requirements for Large and Medium Fleets 1. NOx Fleet Average
–

For each compliance date, a large or medium fl eet that is not a capt ive attainment area

fleet must demonstrate that its NOx fleet average index wa s less than or equal to the calculated NOx fleet average Ttarget Rrate.

The equation for calculating NOx fleet average Ttarget Rrate is below:

NOx Fleet average Ttarget Rr ate = [SUM of (max hp Max Hp for each engine in

fleet multiplied by the target Target for each engine in fleet) for all engines in fleet] divided by [SUM of (max hpMax Hp ) for all engines in fleet]

where the Ttarget is the NOx target in g/bhp- hr is shown in from Tables 3 and 4 below 1. To find the Ttarget for each engine, read the value for the appropriate row based on the compliance year and t he appropriate column based on the engine’s max hpmaximum power from T able 31 for medium and large fleets, and

Table 4 for small fleets.48 The equation for calculating NOx fl eet average Iindex is below:

NOx Fleet average Iindex = [SUM of (max hp Max Hp for each engine in fleet multiplied by NOx emission factor Emission Factor multiplied by the VDECS Factor for each engine in fleet) for all engi nes in fleet] divided by [SUM of (max hp Max Hp ) for all engines in fleet]

where emission factor in g/bhp-hr is s hown in Appendix A, and the VDECS factor

is shown in Table 2 below.

Table 2 – VDECS Factor

VDECS VDECS Factor

No VDECS Installed or

Level 1 VDECS 1

Level 2 PM VDECS, not highest level 0.82

Level 2 PM VDECS, not highest level, with NOx

Reduction 1 Minus (0.18 + (Verified Percent NOx Reduction Divided by 170))

Highest Level PM VDECS 0.7 Highest Level PM VDECS

with NOx Reduction 1 Minus (0.3 + (Verified Percent NOx Reduction Divided by 170))

NOx Reduction only 1 Minus (Verified Percent NOx Reduction Divided by 170)

(1) Fleet Average Targets for Large and Medium Fleets - Table 31 shows the targets used to calculate the NOx fleet average Ttarget Rrate for each compliance date for large and medium fleet s. The Emission Factors are defined in Appendix A.49 Table 31 – Large and Medium Fleet NOx Targets for Each Max Hp Group For Use in Calculating NOx Fleet Average Target Rates [g/bhp-hr]

Compliance Date: January 1 of Year 25-49 hp 50-74 hp 75-99 hp 100-174 hp 175-299 hp 300-599 hp 600-750 hp >750 hp

2014 (Large Fleets Only) 5.8 6.5 7.1 6.4 6.2 5.9 6.1 7.2

2015 (Large Fleets Only) 5.6 6.2 6.7 6 5.8 5.5 5.6 6.8

2016 (Large Fleets Only) 5.3 5.8 6.2 5.5 5.3 5.1 5.2 6.5

2017 5.0 5.4 5.5 4.9 4.7 4.5 4.6 6.0

2018 4.7 5.0 4.8 4.3 4.1 4.0 4.0 5.5

2019 4.4 4.6 4.1 3.7 3.5 3.4 3.4 5.0

2020 4.1 4.2 3.4 3.1 2.9 2.8 2.9 4.5

2021 3.8 3.8 2.7 2.5 2.3 2.2 2.3 4.0

2022 3.5 3.4 2.0 1.9 1.7 1.7 1.7 3.5

2023 3.3 3.0 1.4 1.3 1.5 1.5 1.5 3.4

NOx Targets for each Max Hp Group
Compliance Date:

March 1 of Year 25-49 hp 50-74 hp 75-99 hp 100- 174 hp 175-299 hp 300-599 hp 600- 750 hp >750 hp 2010 (large fleets only) 5.8 6.5 7.1 6.4 6.2 5.9 6.1 7.2 2011 (large fleets only) 5.6 6.2 6.7 6.0 5.8 5.5 5.6 6.8 2012 (large fleets only) 5.3 5.8 6.2 5.5 5.3 5.1 5.2 6.5

2013 5.1 5.5 5.7 5.1 4.9 4.7 4.8 6.1

2014 4.9 5.1 5.2 4.7 4.5 4.3 4.4 5.7

2015 4.6 4.8 4.8 4.3 4.1 3.9 4.0 5.3

2016 4.4 4.4 4.3 3.8 3.6 3.5 3.6 4.9

2017 4.2 4.1 3.8 3.4 3.2 3.1 3.2 4.5

2018 4.0 3.7 3.3 3.0 2.8 2.7 2.7 4.1

2019 3.7 3.4 2.8 2.6 2.3 2.3 2.3 3.8

2020 3.5 3.2 2.4 2.2 1.9 1.9 1.9 3.4

(2) Fleet Average Targets for Small Fleets - Table 4 shows the targets used to calculate the fleet average target rate fo r each compliance date for small fleets.50 Table 4 – Small Fleet Targets for Each Max Hp Group For Use in Calculating Fleet Average Target Rates [g/bhp-hr]

Compliance Date: January 1 of Year 25-49 hp 50-74 hp 75-99 hp 100-174 hp 175-299 hp 300-599 hp 600-750 hp >750 hp
2019 5.8 6.5 7.1 6.4 6.2 5.9 6.1 7.2

2020 5.6 6.2 6.7 6.0 5.8 5.5 5.6 6.8

2021 5.3 5.8 6.2 5.5 5.3 5.1 5.2 6.5

2022 5.0 5.4 5.5 4.9 4.7 4.5 4.6 6.0

2023 4.7 5.0 4.8 4.3 4.1 4.0 4.0 5.5

2024 4.4 4.6 4.1 3.7 3.5 3.4 3.4 5.0

2025 4.1 4.2 3.4 3.1 2.9 2.8 2.9 4.5

2026 3.8 3.8 2.7 2.5 2.3 2.2 2.3 4.0

2027 3.5 3.4 2.0 1.9 1.7 1.7 1.7 3.5

2028 3.3 3.0 1.4 1.3 1.5 1.5 1.5 3.5

(b) (2) BACT Requirements

Each year, aeach fleet must determine if it will be able to meet the fleet average requirements in section 2449.1(a) for the nex t January March 1 compliance date, and if not, the following BACT requirem ent must be met. If a fl eet does not meet the NOx Target rate in section 2449.1(a )(1), it must meet the BACT turnover requirements in section 2449.1(b)(1)(a)(2)(A) below prior to the January 1 compliance date.

(A) Turnover Requirements for Fleets Not Meeting NOx Target Rate – A fleet may meet the turnover BACT require ments by performing turnover or installing VDECS as described in section 2449.1(b)(10) below. Vehicles exempt from the performance requirements under section 2449(e) cannot be us ed to generate BACT credits. retiring a vehicle, designating a vehicle as a low-use vehicle, repower ing a vehicle, rebuilding the engine to a more stringent emissions config uration, or applying a VDECS verified to

achieve NOx reductions. If repowering a vehicle or rebu ilding the engine to a more stringent emissions configuratio n, the new engine must be Ti er 2 or higher and must be a higher tier than the engine replaced or rebuilt. The method for counting VDECS

verified to achieve NOx reductions is specified in section 2449.1(a)(2)(A)8.

(1) 1. Turnover BACT Rate – If a fleet does not meet the NOx fleet average tTarget rRate in section 2449.1(a)(1), it must dem onstrate that during the calendar year prior to the compliance date, it has earned the amount of BACT credit (in hp) necessary to meet or exceed the mini mum BACT requirements specified for that compliance date. The minimum BACT requi rements (in hp) for each compliance date equal: (The BACT rate (percent shown below in (A) through (C) for the compliance date), multiplied by the total max hp of the fleet as reported on the previous reporting date) turned over the required percent of the total maximum power of the fleet that existed on March 1 of the previous year since March 1 of the previous year.51 For example, if a large fleet does not meet the J anuary 1, 2014, fleet average target rate, the fleet must demonstrate that it had accumulated enough BACT credit between January 1, 2013 and Decemb er 31, 2013, to satisfy the BACT requirements for January 1, 2014. The BACT requirements for January 1, 2014, for a large fleet equals the BACT rate for that compliance date (4.8 percent for 2014, as shown below in subsection (A)) multiplied by the fleet’s max hp as reported by the previous repor ting date, March 1, 2013.

Any carryover turnover BACT credit previously accrued may be applied towards the BACT requirements turnov er required in a later year as specified in the sections below. The required BACT rate turnover percents to demonstrate on for each compliance date is are described belo w in (A) through (C). a. through e. (A) Large fleets – 1: 2014: 4.8 percent 2: 2015 to 2017: 8 percent 3: 2018 to 2023: 10 percent (B) Medium fleets – 1: 2017: 8 percent 2: 2018 to 2023: 10 percent (C) Small fleets – 2019 to 2028: 10 percent

a) 2010: 8 percent. b) 2011 and 2012 4.8 percent. c) 2013: i. 14.4 percent for large fleets that did not meet the NOx fleet average

target in 2011 or 2012, ii. 11. 2 percent for large fleets that met the NOx fleet average target

in 2011 but not 2012, and iii. 8 percent for large fl eets that met the NOx fl eet average target in

2012 and for all medium fleets. d) 2014 and 2015: 8 percent. e) 2016 and later: 10 percent.

(2) Exemptions from BACT for Medium and Large Fleets – For medium and large fleets, a vehicle is exempt fr om the BACT require ments of section 2449.1(b)(1) if it qualifies for one or more of the exemptions set forth in section 2449(e) or meets one of the conditions listed in secti on (A) through (E) below. A

fleet that does not meet the fleet average target in section 2449.1(a)(1) must meet the BACT requirements with the vehicles that do not qualify for an exemption under either sect ion 2449(e) or this section, provided that nothing shall require a fleet to apply a VDECS to any vehicle. Where all of the vehicles in a fleet qualify for an exemption under eit her this section or section 2449(e), the fleet is exempt from the BACT and fleet average requirements in that year. The exemptions set forth in th is section do not lower the total max hp on which the BACT requirements ar e calculated.52 (A) On the compliance date, t he vehicle is less than 10 y ears old from the date of

manufacture. (B) The vehicle meets all of the fo llowing specialty vehicle criteria: 1. The fleet has turned over all other vehicles first, 2. No repower is available for the spec ialty vehicle, as demonstrated to the Executive Officer, 3. A used vehicle with a cleaner engine is not available to serve a function and perform the work equivalent to that of the specialty vehicle, as demonstrated to the Executive Officer, and 4. The specialty vehicle has the hi ghest level PM VDECS installed. (C) The vehicle had a Level 2 or 3 PM VD ECS installed within the last six years and such VDECS was highest level PM VDEC S at the time of the installation. (D) The vehicle’s engine is equipped with an original equipment manufacturer diesel particulate filter that came new with the vehicle, or the vehicle has a

Tier 4 interim or Ti er 4 final engine. (E) The vehicle has the highest level PM VDECS installed pr ior to January 1, 2013, except that this exemption may be applied to no more than 15 percent of a fleet’s total hp as of December 31, 2012. 1. If before January 1, 2013, the fleet has insta lled the highest level PM VDECS on more than 15 percent of t he fleet’s December 31, 2012, total hp, the fleet may apply this exempti on to any vehicles with the highest level PM VDECS installed, as long as the total hp of those vehicles does not exceed the 15 percent exemption th reshold established in section (E)

above. 2. The highest level PM VDECS must remain on the vehicle in order to maintain this exemption. If a VDEC S fails, the fleet must replace the VDECS in accordance with section 2449(e )(1) to maintain this exemption

for the vehicle.

(3) Exemptions from BACT for Small Fleets – For small fleets, a vehicle is exempt from the BACT requirem ents of section 2449.1( b)(1) if it qualifies for one or more of the exemptions set forth in secti on 2449(e) or meets one of the conditions listed in section (A) through (E) below. A fleet that does not meet the fleet average target in section 2449.1(a)(2) mu st meet the BACT requirements with the vehicles that do not qualify for an ex emption under either section 2449(e) or this section, provided that nothing sha ll require a fleet to apply a VDECS to any

vehicle. Where all of the vehicles in a fleet qualify for an exemption under either this section or section 2449(e), the fleet is exempt from the BACT and fleet average requirements in that year. The exemptions set forth in this section do not lower the total max hp on which the BACT requirements are calculated. (A) On the compliance date, t he vehicle is less than 10 y ears old from the date of

manufacture. (B) The vehicle meets all of the specialt y vehicle criteria described above in section 2449.1(b)(2)(B). (C) There is no highest level VDECS availa ble for the vehicle’s engine as of 10 months prior to the compliance date (i.e ., there is no Level 2 or 3 VDECS, or53 there is no Level 2 or 3 VDECS which can be used without impairing the safe operation of the vehicle as dem onstrated per section 2449(e)(8)). (D) The vehicle’s engine is equipped with an original equipment manufacturer diesel particulate filter that came new with the vehicle, or the vehicle has a

Tier 4 interim or Ti er 4 final engine. (E) The vehicle’s engine has already been re trofitted with a Level 2 or 3 VDECS that was the highest level PM VDECS ava ilable at time of installation. An engine with a Level 2 VDECS that was not the highest level VDECS at time of installation does not qualif y for this exemption.

(4) Order of BACT Requirements - All Tier 0 and Tier 1 engines in a fleet, except those in vehicles that qualify for an exem ption from the BACT requirements, must

be turned over before the turnover of any other higher tier engines may be counted toward the BACT requirements in section 2449.1(b)(1) or toward accumulating carryover BACT credit. A fl eet may, however, receive carryover BACT credit per section 2449.1(b)(10) and 2449.1(b)(15) for a VDECS installed on an engine, regardless of the engine’s tier.

(5) Rounding - If the hp to meet BACT requirements under section 2449.1(b)(1) is less than half of the max hp of the lowest hp engine in the fleet that is subject to the BACT requirements, the next engine is not required to be turned over or have a VDECS applied to it. However, on t he next year’s compliance date, any hp not accounted for due to this rounding pr ovision must be added to the BACT requirements under section 2449.1(b)(1). Once the required hp equals or

exceeds half of the max hp of the next engine in the fleet that is subject to the BACT requirements, the nex t engine must be turned over or have a VDECS applied to it.

(6) Delay Tier 2 Turnover - All vehicles with a Tier 2 or higher engine are exempt from the BACT requirements th rough January 1, 2015 (i.e., t he first turnover of or

VDECS installations on Tier 2 or hi gher engines would be required between January 1, 2015 and December 31, 2015), provided that all Tier 0 and Tier 1

vehicles in the fleet owner’s fleet that do not qualify fo r an exemption under section 2449.1(b)(2) hav e been turned over.

(7) Delayed Requirements for Early Compliance

– Large fleets are exempt from the January 1, 2014 performance requirement s if the sum of the fleet’s BACT credits on March 1, 2010 exceeded 8 percent of the fleet’s March 1, 2009 hp. To determine eligibility, ARB will take the su m of: “Credit for Early Repowers and Rebuilds to More Stringent Emissions Standards” gained under 2449.1(b)(13) plus “Credit for Early Replacement” gained under 2449.1(b)(14) plus “Double Credit for Early VDECS Installations” gai ned under 2449.1(b)(15) plus “Credit for Early Reduced Fleet HP” gained under 2449.1(b)(16) plus BACT credit gained for turnover from March 1, 2009, th rough February 28, 2010, that was not

accounted for under sections 244 9.1(b)(16). If the sum of these credits exceeds (Total max hp of the fleet on March 1, 2009 multiplied by 0.08), then the fleet will54 not be required to meet ei ther the January 1, 2014, fl eet average or the January 1, 2014, BACT requirements. This provisio n shall not have the effect of reducing any credit that any fleet would otherwise ha ve the right to receive in 2014 or in any subsequent year, even if such credit provided all or part of the basis for a finding that such fleet had BACT credits on March 1, 2010, in excess of 8 percent of such fleet’s hp on March 1, 2009.

(8) Accumulating Carryover BACT Credit – Beginning on January 1, 2013 for large fleets, on January 1, 2016 for m edium fleets, and on January 1, 2018 for small fleets, a fleet will accumulate carryover BACT credit each year it exceeds the BACT requirements specified in sect ion 2449.1(b)(1). The amount of carryover BACT credit (in hp) accumulated is equal to: (The amount of BACT credit earned in the ca lendar year prior to January 1 of the year for which the carryover BACT credit is being calculated) minus (the amount

of BACT credit needed to fulfill the BACT requirements on January 1 of the year for which the carryover BACT credit is being calculated).

(9) Using Carryover BACT Credit – Except as provided in section 2449.1(b)(16), accumulated carryover BACT credit may be applied to meeting the BACT requirements of section 2449.1(b)(1) in a later year. The amount of carryover BACT credit used to meet the BACT require ments in any one year is subtracted from the accumulated carryover BACT credit total, with the remainder being available for use in subsequent years. The amount of BACT credit earned in a calendar year plus the amount of ca rryover BACT credit used must equal or exceed the minimum BACT requ irements described in se ction 2449.1(b)(1).

(10) BACT Credit Earned for Turnover, PM VDECS, and NOx VDECS
–. Beginning on January 1, 2013 for large fleets, on January 1, 2016 for medium fleets, and on January 1, 2018 for small fleet s, BACT credit is earned as follows: (A) For turnover, as specif ied in section 2449(c)(55), BACT credit (in hp) equals: (Max hp of the vehicle t hat was turned over). (B) For a highest level PM VDECS, BACT credit (in hp) equals: (Max hp of the vehicle to which the highest level PM VDECS was applied).

PM VDECS that are not t he highest level PM VDECS receive no BACT credit. (C) For a VDECS verified to reduce NOx but that is not highest level PM VDECS, BACT credit (in hp) equals: (Verified Percent NOx Reduc tion divided by 60 percent ) multiplied by (Max hp

of the vehicle to which the NOx VDECS was applied). (D) For a VDECS verified to reduce NOx an d that is also the highest level PM VDECS, or for a VDECS verified to reduce NOx insta lled on an engine that also has a highest level PM VDECS that is verified separately, BACT credit (in hp) equals: (Verified Percent NOx Reduction divid ed by 120 percent) multiplied by (Max hp of the vehicle to which the NOx VDECS was applied). This credit is applied in addition to cr edit for installing the highest level PM VDECS per section 2449.1(b)(10)(B) above.55 (11) Excess PM VDECS Credits Used fo r Compliance with Off-Road and Truck and Bus Regulations - For the same fleet owner, excess PM VDECS credits granted in the regulation for In-Use Off-Road Diesel-Fueled Fleets (Off-Road regulation) may be used in the Truck and Bus regulation (tit le 13, CCR section 2025) and excess PM VDECS credits grant ed in the Truck and Bus regulation may be used in the Off-Road regulati on before January 1, 2017. Starting January 1, 2017, no credits may be trans ferred between the regulations. (A) Off-Road generated credits used to comply with the Truck and Bus regulation – Except for low-use vehicles (a s defined in sections 2449(c)(39) and (63)) and vehicles that are ex empt under section 2449(e), vehicles subject to the Off-Road regul ation that have Level 3 PM VDECS installed on one or more engines may generate excess PM VDECS credits to comply with the Truck and Bus regulation (title 13, CCR, section 2025), as follows: 1. Excess compliance credits under the Off-Road regulation – Beginning January 1, 2013, for lar ge fleets, and on January 1, 2016, for medium fleets, if a fleet earns BACT credit in a calendar year that exceeds the BACT requirements for t hat year, the excess BAC T credit earned (i.e., the

amount of BACT credit earned above t he BACT requirements for that year, in hp) from the installation of Level 3 PM VDECS may be applied towards compliance with the Truck and Bus regulation per section 2025 as

follows: (Excess PM VDECS credits to apply towards the Truck and Bus regulation = [(Total max hp of excess engines with the Level 3 PM VDECS installed) divided by 300] truncated to a whole number).

If in an applicable compliance year no BACT credit is earned through the installation of Level 3 PM VDECS (f or example, if no vehicles are

retrofitted with Level 3 dev ices that calendar year), no excess PM VDECS

credit will be earned.

The Excess PM VDECS credit earned above may be applied towards the Truck and Bus regulation each year until the vehicle that generated the excess PM VDECS credit is 1) needed for compliance with sections 2449.1(a) or (b), or 2) is retir ed, sold, scrapped, or otherwise removed

from the California fleet.

If the equation above, before truncati on, does not result in a whole number, any remaining hp with Level 3 PM VDECS not used to generate excess PM VDECS credit (i.e., th e truncated amount) may be used as carryover BACT credit towards compli ance with the Off-Road regulation, or may be accumulated to generate ex cess PM VDECS credits in future

years. 2. Early PM VDECS installations – If any small, medium, or large fleet installs Level 3 PM VDECS by the deadlines shown in section 2449.1(b)(15), the fleet has the option to either (1) accumulate double56 carryover credit to be used towards the BACT requirements of the OffRoad regulation (per sect ion 2449.1(b)(1)), or (2 ) to apply single PM VDECS credit towards compliance wit h the Truck and Bu s regulation. 3. Compliance with th e Off-Road regulation – Fleet owners that use excess PM VDECS credits towards for compliance with the Truck and Bus regulation (as specified in section ( 11)(A)1. and 2. above) shall not count

their Level 3 PM VDECS in the fleet average index calculations in section 2449.1(a) (i.e., the VDECS Factor is 1 for these vehicles or engines with the excess Level 3 PM VDECS), and no BACT credit can be accrued that can be used towards compliance with the Off-Road regulation for those VDECS. Once the excess PM VDECS credit can no longer be applied to the Truck and Bus regulation, the Lev el 3 PM VDECS that were used to generate the expired excess PM VDEC S credit can be returned to the fleet average index calculati ons in section 2449.1(a). (B) Excess Truck and Bus regulation cred its used to comply with the OffRoad regulation – For each vehicle that generates an excess PM VDECS credit per Truck and Bus regulation, a one-time PM VDECS credit may be applied towards compliance with the Off-Road regulation, as follows: (Excess PM VDECS credit that c an be applied towards the Off-Road regulation (i.e., BACT credit, in hp, to apply towards the Off-Road regulation) = (Excess PM VDECS credits from t he Truck and Bus regulation) multiplied by 300).

For each additional vehicle that generat es a new excess PM VDECS credit,

another one-time excess PM VDECS cr edit can be applied towards the OffRoad regulation. Once it is determi ned, under the Truck and Bus regulation, that a vehicle can no longer generate excess PM VDECS credits, the BACT credit earned through this provision, if not previously used, will expire and can no longer be used by the fleet towards compliance with the Off-Road regulation.

(12) Beginning 2. Carryover turnover BACT Ccredit
– a. Beginning - All fleets may earn and accumula te BACT credits for taking early actions in accordance with subparagraphs (13) through (18) below, but with the exception of such credits for taking early action, all fleets begin with zero carryover BACT credit on January 1, 2013. All fleets begin with zero carryover turnover credit on March 1, 2009. All fleets may begin accumulating carryover turnover credit on March 1, 2009. To claim credit, fleets mu st submit to ARB and retain records as described in sections 2449(g) and (h).

(13) i. Credit for Early Repowers a nd Rebuilds to More Stringent Emissions
Standards – Credit for early repowers can onl y be claimed for engines that remain in the fleet on the compliance date that the credit is taken. Fleets that have repowered their vehicles with Tier 1 or higher engines or rebuilt the engine

from a lower Tier to a Tier 1 or more stringent emissions standard before March57 1, 2009, will accumulate a carryover BAC T turnover credit (in hphorsepower) equal to: (the max hp of the vehicles repowered and the engines rebuilt in accordance with the preceding). the maximum power of Tier 1 or higher repower engines installed

in affected vehicles be fore March 1, 2009.

Fleets that repower their Tier 0 or Tier 1 vehicles with Tier 2 or higher engines, or rebuild the engines in their Tier 0 or Tier 1 vehicles to a Tier 2 or more stringent emissions standard, prior to the following deadl ines, will accumulate a carryover BACT credit (in hp) equal to the max hp of the vehicles repowered and the engines rebuilt in accordance with the preceding: (A) Large fleets: January 1, 2013 (B) Medium fleets: January 1, 2016 (C) Small fleets: January 1, 2018 The credit can only be claimed for engines that remain in the fleet in the year that

the credit is taken.

(14) ii. Credit fo r Early Replacement – Fleets that have replaced their Tier 0 vehicles with Tier 1 or higher vehicles at an average rate great er than 8 percent of total max hpmaximum power per year between March 1, 2006 and March 1, 2009 will accumulate carryover turnover BACT credit (in hphorsepower) equal to: [(Total max hpmaximum power of Tier 0 vehicles retired between March 1, 2006 and March 1, 2009) minus (Total max hpm aximum power of Tier 0 vehicles added between March 1, 2006 and March 1, 2009) minus (2 times the tTotal “Credit for Early Reduced Hp” credit for early retirement claimed under section (16)(v) below)] minus [(Total max hpmaxim um power of fleet on March 1, 2007 multiplied by times 0.08) plus (Total ma x hpmaximum power of fleet on March 1, 2008 multiplied by times 0.08) plus (Tot al max hpmaximum power of fleet on March 1, 2009 multiplied by times 0.08)]. Tier 0 vehicles repowered with newer engines are counted under (13)(i) above an d shall not be counted under this section(ii).

(15) iii. Double Credit for Early VDECS Installations NOx Retrofits –If fleets install a highest level PM VDECS or a VDECS verified to reduce NOx, prior to January 1, 2013 for large fleet s, January 1, 2016 for medium fleets, and January 1, 2018 for small fleets, fl eets that have installed VD ECS that have been verified as achieving NOx reduct ions on their vehicles before March 1, 2011 will accumulate a carryover turnover BACT credit (in horsepower) as follows equal

to: 2 multiplied by (Verified Percent NOx Reduction divided by 60 percent) multiplied by (Maximum power on which VDECS verified to achieve NOx reductions are

installed before March 1, 2011) (A) For a highest level PM VDECS, BACT credit (in hp) equals: 2 multiplied by the (Max hp of the v ehicle to which the highest level PM VDECS was applied).

PM VDECS that are not t he highest level PM VDECS receive no BACT credit.58 (B) For a VDECS verified to reduce NOx but that is not highest level PM VDECS, BACT credit (in hp) equals: 2 multiplied by (Verified Percent NOx Reduction divided by 60 percent) multiplied by the (Max hp of the v ehicle to which the NOx VDECS was applied). (C) For a VDECS verified to reduce NOx an d that is also the highest level PM VDECS, or for a VDECS verified to reduce NOx insta lled on an engine that also has a highest level PM VDECS that is verified separately, BACT credit (in hp) equals: 2 multiplied by the (Verified Percent NOx Reduction divided by 120 percent) multiplied by (Max hp of the vehicle to which the NOx VDECS was applied). This credit is applied in addition to cr edit for installing the highest level PM VDECS per section 2449.1(b)(15)(A) above. iv. Credit for Reduced Fleet Activity – Fleets that demonstrate a reduction in fleet activity will accumu late carryover turnover credit (in horsepower). Fleet activity is defined as the sum of [(Total maximum power of the vehicle) ti mes (Number of hours the vehicle was operated in the applicable 12 month period)] for each vehicle

in the fleet. 1. Carryover turnover credit gene rated from reduced activity may only be applied toward the Marc h 1, 2010, or March 1, 2011 compliance dates.

2. Fleets that receive credit for t he retirement of any vehicle prior to March 1, 2010, per section (v) below, can not count that

vehicle in the calculation of reduced activity credit. 3. Carryover turnover credit sha ll be calculated for the fleet, not including those vehicles reti red for credit under section (v) below, as:

[(Fleet activity for January 1, 2007, to December 31, 2007) minus (Fleet activity for March 1, 2009, to February 28, 2010, including vehicles added to the fleet) divided by (fleet activity for January 1, 2007, to December 31, 2007)] multiplied by (Total maximum power of fleet on July 1, 2007)

4. Fleet owners must use vehicle specific data, including but not limited to hour meter logs or oper ator logs linking operators to specific vehicles, from July 1, 2007, to March 1, 2010, as described in section 2449(g)(1 )(G)4 to document vehicle activity.

5. Fleets that do not have hour me ter logs or vehicle-specific operator logs or equivalent re cords that are verifiable and substantively demonstrate activity for all vehicles in the fleet: A. May use other verifiable indicato rs that are directly related to reduced vehicle operation to demonstrate an overall59 reduction in fleet activity from July 1, 2007, to March 1, 2010, including but not limited to records of overall off-road

diesel fuel use for the fl eet, as described in section 2449(g)(1)(G)4. However, such fleets must subtract the total credit for early retirem ent claimed under section (v)

below from their r educed activity credit. B. May use indicators, including but not limited to revenue or total vehicle operator employ ment, that demonstrate a

reduction in business or staffi ng but that do not directly correspond to vehicle or fleet activity. To qualify for a credit using such indirectly-correlated indicators, the fleet must be able to provide some evidence of overall reduced fleet activity. The Executive Officer will grant a fleet using such indicators a maximum 20 percent credit for demonstrated reduced activity not directly related to vehicular operation.

Such fleets must also subtract from the 20 percent reduced activity credit any credits re ceived for early retirement claimed under section (v) below credit. Fleets must not apply for credit using indicators that would demonstrate reduced business or staffing if the fleet has information or

records that demonstrate the fleet has not reduced overall vehicle activity.

(16) v. Credit for Early Re duced Fleet Hp Retirement – Fleets that reduce overall hphorsepower from March 1, 2006, to Ma rch 1, 2010, accumulate carryover BACT turnover credit (in hphor sepower) equal to 0.5 mult iplied by the following: [(Total max hp horsepower of the fleet on March 1, 2006, including low-use vehicles) minus (Total max hp horsepow er of the fleet on March 1, 2010, including low-use vehicles)]. In accordance with section 2449.1(b)(9), la rge fleets may use any such credit to meet the BACT requirements in se ction 2449.1(b)(1) beginning with the January 1, 2015 BACT requi rements, or in any subsequent year. Notwithstanding section 2449.1( b)(9), large fleets may not use credit from this provision to meet the BACT requirements in section 244 9.1(b)(1) for the initial compliance year for large fleets, wh ich is the January 1, 2014, compliance deadline. For example, if a fleet accumulated BACT cr edit by reducing hp from March 1, 2006, to March 1, 2010, and also accumulated BACT credit from repowers during the same perio d, the fleet could apply the repower credit toward their January 1, 2014, BACT requirements, but could not apply the credit from reduced hp under this provis ion to their January 1, 2014, BACT requirements. The fleet could apply the credit from reduced hp under this provision to their January 1, 2015, BACT require ments, as well as any future year until such credits are expended.60 (17) Credit for 2010 to 2011 Reduced Fleet Hp – Fleets that reduce their overall hp from March 1, 2010, through Februar y 28, 2011, will accumulate carryover BACT credit (in hp) equal to: (Total max hp of the fleet on March 1, 2010, including low-use vehicles) minus (Total max hp of the fleet on February 28, 2011, including lo w-use vehicles).

(18) Credit for Interim Replacement and Retirement – Fleets that replace or retire over 8 percent of the fleet’s total max hp in Tier 0 and Tier 1 vehicles in any one year during the specified periods below wil l accumulate carryover BACT credit (in hp) equal to: (Combined total of max hp of Tier 0 and Ti er 1 vehicles retired over the year) minus (Combined total of max hp of Tier 0 or Tier 1 vehicles added over the year) minus [(Total max hp of fleet at t he end of the year) multiplied by 0.08]. In each year, the replacement or retire ment of vehicles will be summed from January 1 through December 31 of that year, except ing 2011, during which the replacement or retirement will be summed from March 1 through December 31.

Fleets shall exclude vehicles repowered or rebuilt to a more stringent emissions standard in each year (that earned BACT credit per sect ion 2449.1(b)(13)), from all such calculations. For the purposes of this provision, Tier 0 and Tier 1 vehicles that are replaced must be repl aced with Tier 2 or higher vehicles in

order to accumulate BACT credit. (A) Large fleets: March 1, 2011 through December 31, 2012 (B) Medium fleets: March 1, 2011 through December 31, 2015 (C) Small fleets: March 1, 2011 through December 31, 2017

b. Accumulating carryover turnover credit
– i. 2010-2015 - From March 1, 2010 through March 1, 2015 for large fleets and from March 1, 2013 th rough March 1, 2015 for medium fleets a fleet accumulates carryover turnover credit each year it turns over more than the require d percent of its maximum power specified in section 2449.1(a)(2)(A) 1. The amount accumulated is the maximum power turned over in excess of the required percent in the 12 months prior to Marc h 1 of the year in which the carryover is calculated. From March 1, 2010, through March 1, 2012, a medium fleet accumulates ca rryover turnover credit each year the total horsepower it turn s over exceeds 8 percent of its maximum power.

ii. After 2015 - After March 1, 2015, a fl eet will accumulate carryover turnover credit each year it turns over more than 10 percent of its maximum power. The amount accumulated is the maximum power turned over in the 12 months prior to March 1 of the year in which the carryover is calculated plus t he carryover turnover credit used minus the required 10 percent. iii. Repower Credit – From March 1, 2010 through March 1, 2012, a

for medium fleets that did not accumulate any credit under (i) above shall accumulate carryover turnover credit each year equal61 to the total maximum power of Tier 2 or higher repower engines

installed in affected vehicles in the 12 months prior to March 1 of the year in which the carryover is calculated. From March 1, 2010 through March 1, 2011, a large fleet that did not accumulate any credit under (i) above shall accumulate carryover turnover credit each year equal to the total maximum power of Tier 2 or higher repower engines installed in affe cted vehicles in the 12 months prior to March 1 of the year in which the carryover is calculated. c. Using carryover turnover credit - Accumulated carryover turnover credit may be applied to m eeting the turnover r equirements of section 2449.1(a)(2)(A)1 in a later year. T he amount of carryover turnover credit used to meet the turnover requirements in any one year is subtracted from the carryover turn over credit total available in subsequent years. The amount of act ual turnover or retrofits plus the amount of carryover turnover cr edit used must equal the minimum BACT turnover required by section 2449.1(a)(2)(A)1.

3. Order of turnover - All engines in a fleet that were not subject to a PM standard for new engines (Tier 0 and Tier 1 with no PM standard, i.e., Tier 1 engines between 50 and 174 horsepower), except those in vehicles that qualify for an exemption from under section 2449. 1(a)(2)(A)4., must be turned over before turnover of any other higher tier engines may be counted toward the turnover requirem ents in section 2449.1(a)(2)(A) or toward accumulating carryover turnover credit. A fleet may, however, receive carryover turnover credit per section 2449.1(a)(2)(A)2.a.iii for a

VDECS verified to achieve NOx r eductions installed on an engine, regardless of the engine’s tier.

4. Exemptions – A vehicle is exempt from the turnover of section 2449.1(a)(2)(A)1. if all vehicles in the fleet that do not qualify for an exemption under this section hav e been turned over and the vehicle

meets one of the follo wing conditions: a. On the compliance date, the vehicl e is less than 10 years old from the date of manufacture;

b. The vehicle meets all of the fo llowing specialty vehicle criteria:

i. The fleet has turned over all other vehicles first, ii. No repower is available for the s pecialty vehicle, as demonstrated to the Executive Officer, iii. A used vehicle with a cleaner engine is not available to serve a function and perform the work equival ent to that of the specialty vehicle, as demonstrated to the Executive Officer, and iv. The specialty vehicle has been re trofit with highest level VDECS,

c. The vehicle has been retrofitted wit hin the last six years with a Level 2 or 3 VDECS that was highest level VD ECS at the time of retrofit, or d. The vehicle has a Tier 4 interim or Tier 4 final engine.62 e. The vehicle has the highest level VDECS installed prior to March 1, 2011, except that this exemption may be applie d to no more than 15 percent of a fleet’s to tal horsepower as of J anuary 1, 2013 March 1,

2010.

5. Delay Tier 1 turnover - All vehicles with a Ti er 1 or higher engine are exempt from the turnover requirem ents until the compliance year ending March 1, 2013 (i.e., the fi rst turnover of Tier 1 or higher engines would be required between March 2, 2012 and Marc h 1, 2013), provided that all

Tier 0 vehicles in the fleet owner ’s fleet that do not qualify for an exemption under section 2449.1(a)(2)(A )4. have been turned over.

6. Designating vehicle as low-use –A fleet may designate a vehicle that was formerly used 100 hours or more per year as low-use by limiting its use to less than 100 hours per year and committing to keep its use less than 100 hours per year. a. Only vehicles formerly used 100 hour s or more per year may be so designated. Vehicles so designated may be counted toward the turnover requirements. b. Once designated as low-use, a vehicle may never again be used more than 100 hours per year by the fleet unless the vehicle meets the adding vehicles requirements in section 2449(d)(7). c. A fleet is not obliged to designat e a vehicle whose use drops below 100 hours per year as low-use, or to count it toward the turnover requirements. If such a vehicle is not designated as low-use, its use may increase beyond 100 hours per y ear in subsequent years.

7. Rounding - If the horsepower required to be turned over under section 2449.1(a)(2)(A) is less than half of t he maximum power of the lowest horsepower engine in the fleet that is subject to the turnover requirements, the next engine is not requi red to be turned over. However, on the next year’s compliance date, any horsepower not turned over due to this rounding provision must be added to the required turnover under section 2449.1(a)(2)(A). Once the required hors epower to be turned over equals or exceeds half of the maximu m power of the next engine in the fleet that is subject to the turnover requirements, the next engine must be

turned over.

8. Turnover Credit for NOx Retrofits - VDECS that have been verified as achieving NOx reductions may be used to satisfy the turnover requirements in section 2449.1(a)(2 )(A)1 on each compliance date as

follows:

Turnover credit for NOx retrofits e quals (Verified Percent NOx Reduction divided by 60 percent) multiplied by (Maximum power on which VDECS

verified to achieve NOx reductions was installed in last 12 months).63 Turnover credit for NOx retrofits ma y be applied to meet the turnover requirements of section 2449.1(a)(2)(A )1 or to accumulate carryover

turnover credit.

Note: Authority cited: Sections 39002, 39515, 39516, 39600, 39601, 39602, 40000, 41511, 43000, 43000.5, 43013, 43016, 43018, and 43018.2, Health and Safety Code. Reference: Sections 39002, 39515, 39516, 39600, 39601, 39602, 39650, 39656, 39657, 39658, 39659, 39665, 39667, 43000, 43000.5, 43013, 43016, 43018, and 43018.2, Health and Safety Code.64 Section 2449.2 PM Performance Requirements

(a) Performance Requirements -

Each fleet must meet the fl eet average requirements in sect ion 2449.2(a)(1) by March 1 of each year or demonstrate that it met the best available cont rol technology (BACT) requirements as described in section 2449.2(a )(2). There are differing requirements for large and medium, and small fleets. If various portions of a fleet are under the control of different responsible officials because they are part of different subsid iaries, divisions, or other organizational structures of a company or agency, the fleet portions may comply with the performance requirem ents separately and be reported separately. However, the total maximum power of the vehicl es under common ownership or control determines the fleet size. Fleets owned by low-population county local municipalities are subject to the small fleet requirements, even if their total maximum power exceeds 2,500 horsepower. Section 2449(d)(4) descri bes requirements for fleets that change

size.

(1) Fleet Average Requirements (A) Fleet Average Requirements for Large and Medium Fleets 1. Diesel PM Fleet Average - For each compliance date, a large or medium

fleet must demonstrate t hat its Diesel PM Index was less than or equal to the calculated Diesel PM Target Rate.

The equation for calculating Diesel PM Target Rate is below:

Diesel PM Target Rate = [SUM of ( Max Hp for each engine in fleet multiplied by Target for each engine in fleet ) for all engines in fleet] di vided by [SUM of (Max Hp ) for all engines in fleet]

where Target is the Diesel PM target in g/bhp-hr from Table 2. To find the Target for each engine, r ead the value for the appropriate row based on the compliance year and the appropriate column based on the engine’s maximum power from Table 2.

The equation for calculating Dies el PM Index is below:

Diesel PM Index = [SUM of ( Max Hp for each engine in fleet multiplied by PM Emission

Factor for each engine in fleet) for all engines in fleet] divided by [SUM of (Max Hp ) for all engines in fleet]

Table 2 shows the targets used to calc ulate the Diesel PM Target Rate for each compliance date for large and medi um fleets. The Emission Factors are defined in Appendix A.65 Table 2 – Large and Medium Fleet PM Targets For Use in Calculating PM Target Rates [g/bhp-hr] PM Targets for each Max Hp Group
Compliance

Date: March 1 of

Year 25-49 hp 50-74 hp 75-99 hp 100-174 hp 175-299 hp 300-599 hp 600-750 hp >750 hp 2010 (large fleets only) 0.46 0.60 0.62 0.33 0.23 0.18 0.20 0.30 2011 (large fleets only) 0.46 0.60 0.62 0.33 0.23 0.18 0.20 0.30 2012 (large fleets only) 0.39 0.43 0.46 0.26 0.16 0.14 0.14 0.24

2013 0.39 0.43 0.46 0.26 0.16 0.14 0.14 0.24

2014 0.29 0.23 0.24 0.18 0.11 0.11 0.11 0.18

2015 0.29 0.23 0.24 0.18 0.11 0.11 0.11 0.18

2016 0.21 0.18 0.19 0.14 0.08 0.08 0.08 0.11

2017 0.21 0.18 0.19 0.14 0.08 0.08 0.08 0.11

2018 0.12 0.12 0.13 0.10 0.06 0.06 0.06 0.08

2019 0.12 0.12 0.13 0.10 0.06 0.06 0.06 0.08

2020 0.08 0.08 0.07 0.06 0.03 0.03 0.03 0.06

(B) Fleet Average Require ments for Small Fleets - Small fleets must meet a PM fleet average beginning in 2015. To meet the PM fleet average, for each compliance date, a small fleet must dem onstrate that its Diesel PM Index was less than or equal to the calculat ed Diesel PM Target Rate.

The equations for calculating Target Ra tes and Diesel PM Index are below:

Diesel PM Target Rate = [SUM of ((Max Hp for each engine in fleet multiplied by Target for each engine in fleet)] divi ded by [SUM of (Max Hp ) for all engines in fleet]

where Target is the PM target in g/bhp- hr from Table 3. To find the Target for each engine, read the va lue for the appropriate row based on the compliance year and the appropriate column based on the engine’s maximum power from Table 3.

Diesel PM Index = [SUM of ( Max Hp multiplied by PM Emission Factor ) for each engine in fleet] divided by [SUM of (Max Hp ) for all engines in fleet]

Table 3 shows the targets used to calc ulate the Diesel PM Target Rate for each compliance date for small fleets. The Emission Factors are defined in Appendix A.66 Table 3 – Small Fleet PM Targets For Use in Calculating PM Target Rates [g/bhp-hr] PM Targets for each Max Hp Group
Compliance Date:

March 1 of Year 25-49 hp 50-74 hp 75-99 hp 100- 174 hp 175- 299 hp 300- 599 hp 600- 750 hp >750 hp
2015 0.46 0.60 0.62 0.33 0.23 0.18 0.20 0.30

2016 0.46 0.60 0.62 0.33 0.23 0.18 0.20 0.30

2017 0.39 0.43 0.46 0.26 0.16 0.14 0.14 0.24

2018 0.39 0.43 0.46 0.26 0.16 0.14 0.14 0.24

2019 0.29 0.23 0.24 0.18 0.11 0.11 0.11 0.18

2020 0.29 0.23 0.24 0.18 0.11 0.11 0.11 0.18

2021 0.21 0.18 0.19 0.14 0.08 0.08 0.08 0.11

2022 0.21 0.18 0.19 0.14 0.08 0.08 0.08 0.11

2023 0.12 0.12 0.13 0.10 0.06 0.06 0.06 0.08

2024 0.12 0.12 0.13 0.10 0.06 0.06 0.06 0.08

2025 0.08 0.08 0.07 0.06 0.03 0.03 0.03 0.06

(2) BACT Requirements – Each year, each fleet must dete rmine if it will be able to meet the fleet average requi rements for the next March 1 compliance date, and if not, the following BACT require ment must be met. If a fleet does not meet the Diesel PM Target Rate in section 2449.2(a) (1), it must meet the BACT Retrofit Requirements in section 2449.2(a)(2)(A). Fleets that fail to meet both an applicable NOx target rate in secti on 2449.1(a)(1) and the Diesel PM Target Rates in section 2449.2(a)(1) in a comp liance year must first meet the BACT turnover requirements in section 2449.1(a )(2) in that year and then meet the BACT Retrofit Requirements in sect ion 2449.2(a)(2)(A) in that year.

(A) PM Retrofit Requirements for Fleets Not Meeting Diesel PM Target Rate

1. PM Retrofit Rate - If a fleet does not meet the Diesel PM Target Rate in section 2449.2(a)(1), it must demonstrat e that it has retr ofit the required percent of its total maximum power (not including specialty vehicles retrofitted and exempted fr om turnover in secti on 2449.1(a)(2)(A)4.b.) with highest level VDECS since March 1 of the previous year. Any carryover retrofit credit previously accrued may be applied towards the retrofits required. If the VDECS is not new (i .e., is being reused), it must have

been taken from a vehicle that is no l onger operating in California. Fleets may count acquisition of vehicles with Ti er 4 interim or Tier 4 final engines

or retirement of Tier 0 vehicles toward the retrofit requirement as described below. The required retrof it percents to demonstrate on each compliance date are described below in a. through d. a. 2010: 20 percent.

b. 2011 and 2012: c. 2013 and later: 36 percent for large fleets that did not meet the PM fleet average target in 2011 or 2012, 28 percent for large fleets that met the PM fleet average tar get in 2011 but not 2012, and 2067 percent for large fleets that met the PM fleet average target in

2012 and for all medium fleets. d. 2014: 20 percent.

a. Turnover to Tier 4 In Lieu of Retrofitting - If since March 1 of the previous year, a fleet acquired Tier 4 interim or Tier 4 final engines already equipped with an original equipment manufacturer diesel particulate filter or vehicles equipped with such engines, the total maximum power of the Tier 4 inte rim and Tier 4 final engines may be counted toward the required hp to be retrofit under section 2449.2(a)(2)(A)1. or used to accumulate carryover PM retrofit credit if during that same period, t he fleet also retired Tier 0, 1, 2, or 3 engines

with that total maximum power or greater.

b. Retirement of Tier 0 Vehicles in Lieu of Retr ofitting for Fleets with Reduced Horsepower - If since March 1 of the previous year, a fleet’s total maximum power has dec reased, the lesser of the total maximum power of Tier 0 vehicles retired since March 1 of the previous year and the total horsepower by which the fleet has been decreased may be counted toward the r equired hp to be retrofit under section 2449.2(a)(2)(A)1. Such reti rement of Tier 0 vehicles may not be used to accumulate carryover PM retrofit credit. Retired Tier 0

vehicles that are counted toward t he required hp to be retrofit under this subsection may not be used in subsection a. above to

demonstrate that the fleet retired Tier 0, 1, 2, or 3 engines with at least the total maximum power of the Tier 4 engines added. b. c. Conversion or Repower of Di esel Vehicles to Alternative Fuel or

Gasoline-Powered - Fleets that convert or repower a diesel vehicle subject to the regulation to alter native fuel or gasoline-powered may count the max power of the vehicl e converted or repowered toward the required hp to be retrofit under section 2449.2(a)(2)(A)1. or to accumulate carryover PM BACT retrofit credit.

2. Carryover PM retrofit credit
– a. Beginning - All fleets for vehicles remaining in their fleets begin with zero carryover retrofit credit on March 1, 2011 2009. All fleets may begin accumulating carryover retrofit credit on March 1, 2009. i. Double Credit for Early PM Retrofits – Fleets that have installed the highest level VDECS on their vehicles before January 1, 2010 will accumulate a carryover retrofit credit equal to: 2 multiplied by total maximum power of engines on which highest level VDECS was installed before January 1, 2010, unless the contract for funding the VDECS stipulates single credit for installation of the

VDECS. ii. Credit for Other PM Retrofits Before Initial Compliance Date
– Small and medium fleets that inst all highest level VDECS on their vehicles before March 1, 2012 will accumulate carryover retrofit credit equal to; 2 multiplied by to tal maximum power of engines on.

68 which highest level VDECS was instal led. Small fleets that install highest level VDECS on their vehicles between March 1, 2012 and February 28, 2014 accumulate carryover PM BACT retrofit credit equal to total maximum power of engines on which highest level

VDECS was installed. iii. Credit for Reduced Fleet Activity – Fleets that demonstrate a reduction in fleet activity will accumu late carryover retrofit credit (in horsepower). Fleet activity is defined as the sum of [(Total maximum power of the vehicle) ti mes (Number of hours the vehicle was operated in the applicable 12 month period)] for each vehicle

in the fleet. 1. Carryover retrofit credit gener ated from reduced activity may only be applied toward the Marc h 1, 2010, or March 1, 2011 compliance dates.

2. Fleets that receive credit for t he retirement of any vehicle prior to March 1, 2010, per section (i v) below, can not count that

vehicle in the calculation of reduced activity credit. 3. Carryover retrofit credit shall be calculated for the fleet, not including those vehicles retir ed for credit under section (iv) below, as:

[(Fleet activity for January 1, 2007, to December 31, 2007) minus (Fleet activity for March 1, 2009, to February 28, 2010, including vehicles added to the fleet) divided by (fleet activity for January 1, 2007, to December 31, 2007)] multiplied by (Total maximum power of fleet on July 1, 2007)

4. Fleet owners must use vehicle specific data, including but not limited to hour meter logs or oper ator logs linking operators to specific vehicles, from July 1, 2007, to March 1, 2010, as described in section 2449(g)(1 )(G)4 to document vehicle activity.

5. Fleets that do not have hour me ter logs or vehicle-specific operator logs or equivalent re cords that are verifiable and substantively demonstrate activity for all vehicles in the fleet: A. May use other verifiable indicato rs that are directly related to reduced vehicle operation to demonstrate an overall reduction in fleet activity from July 1, 2007, to March 1, 2010, including but not limited to records of overall off-road

diesel fuel use for the fl eet, as described in section 2449(g)(1)(G)4. However, such fleets must subtract the total credit for early retirem ent claimed under section (iv)

below from their r educed activity credit. B. May use indicators, including but not limited to revenue or total vehicle operator employ ment, that demonstrate a.

69 reduction in business or staffi ng but that do not directly correspond to vehicle or fleet activity. To qualify for a credit using such indirectly-correlated indicators, the fleet must be able to provide some evidence of overall reduced fleet activity. The Executive Officer will grant a fleet using such indicators a maximum 20 percent credit for demonstrated reduced activity not directly related to vehicular operation.

Such fleets must also subtract from the 20 percent reduced activity credit any credits re ceived for early retirement claimed under section (iv) below . Fleets must not apply for credit using indicators that would demonstrate reduced business or staffing if the fleet has information or records

that demonstrate the fleet has not reduced overall vehicle activity. iv. Credit for Early Retirement – Fleets that reduce overall horsepower from March 1, 2006, to March 1, 2010, begin with carryover retrofit credit (in horsepower) equal to: (Total maximum horsepower of the fleet on March 1, 2006) minus (Total maximum horsepower of the fl eet on March 1, 2010).

b. Accumulating carryover PM BACT retrofit credit – Beginning March 1, 2011 for large fleets, March 1, 2013 for medium fleets, and March 1, 2015 for small fleets, a fleet will accumulate carryover retrofit credit each year the total horsepower it retr ofits plus the carryover retrofit credit it uses exceeds the require d percent of its maximum power specified in section 2449.2(a)(2)(A)1. The amount accumulated is the maximum power retrofit plus the ca rryover retrofit credit used minus the required percent in t he past 12 months prior to March 1. A large fleet also accumulates carryover retr ofit credit on March 1, 2010 if the

sum of the double retrofit credit earned from March 1, 2009 to January 1, 2010 plus the single retrofit credi t earned from January 1, 2010 to March 1, 2010 exceeds 20 percent of its maximum horsepower. The

amount accumulated is the sum of double credit retrofit credit earned from March 1, 2009 to January 1, 2010 plus th e single credit earned from January 1, 2010 to March 1, 2010 in excess of 20 percent of fleet’s maximum horsepower in the past 12 months. c. Using carryover PM retrofit credit - Accumulated carryover retrofit credit may be applied to m eeting the retrofit r equirements of section 2449.2(a)(2)(A)1. in a later year. The amount of carryover retrofit

credit used to meet the retrofit requirements in any one year is subtracted from the carryover retr ofit credit total available in subsequent years. The amount of act ual retrofit plus the amount of carryover retrofit credit used must equal the minimum BACT retrofit rate required by secti on 2449.2(a)(2)(A)(1).

3. Order of PM Retrofit – No Level 2 VDECS may be counted toward the retrofit requirements in section 2449.2( a)(2)(A) until all engines in vehicles70 older than 5 years for which the highes t level VDECS available is a Level 3 VDECS have been retrofit, except fo r specialty vehicles utilizing the exemption in section 2449.1( a)(2)(A)4.b. for which Level 2 is the highest

level VDECS. 4. Exemptions – A vehicle is exempt from the retrofit re quirements in section 2449.2(a)(2)(A)1. if all vehicles in t he fleet that do not qualify for an exemption under the follo wing conditions have been retrofitted, and the vehicle meets one of the following conditions: a. On the date of complia nce, the vehicle is less than 5 years old from the vehicle’s date of manufacture, b. There is no highest level VDECS availa ble for the vehicle’ s engine (i.e., there is no Level 2 or 3 VDECS, or there is no Level 2 or 3 VDECS which can be used without impairing t he safe operation of the vehicle as demonstrated per section 2449(e)(8)), c. The vehicle’s engine is equi pped with an original equipment manufacturer diesel particulate filter that came new with the vehicle, or d. The vehicle’s engine has already been retrofitted with a Level 2 or 3 VDECS that was the highest level VDECS available at time of installation. An engine with a Level 2 VDECS that was not the highest

level VDECS at time of installation does not qualify for this exemption.

5

. Rounding - If the horsepower required to be retrofit under section 2449.2(a)(2)(A) is less than half of t he maximum power of the lowest horsepower engine in the fleet that is s ubject to the retrof it requirements, the next engine is not required to be re trofitted. Howe ver, on the next year’s compliance date, any horsepower not retrofit due to this rounding provision must be added to the re quired retrofit under section 2449.2(a)(2)(A). Once the required horsepower to be retrofit equals or

exceeds half of t he maximum power of the next engi ne in the fleet that is subject to the retrofit requirements, the next engine must be retrofitted.

(3) Adding Vehicles After the Final Target Date – Commencing respectively on March 1, 2020 for large and medium fleets, and March 1, 2025 for small fleets, if

a fleet owner adds a vehicle to his fleet and the engine did not come with an original equipment manufacturer diesel par ticulate filter, it must be equipped with the highest level VDECS within 3 months of acquisition.

Note: Authority cited: Sections 39002, 39515, 39516, 39600, 39601, 39602, 39650, 39656, 39658, 39659, 39665, 39667, 39674, 39675, 40000, 41511, 42400, 42400.1, 42400.2, 42400.3.5, 42402, 4240 2.1, 42402.2, 42402.4, 42403, 43000, 43000.5, 43013, 43016, 43018, and 43018.2, Health and Safety C ode. Reference: Sections 39002, 39515, 39516, 39600, 39601, 39602, 39650, 39656, 39657, 39658, 39659, 39665, 39667, 39674, 39675, 40000, 41511, 42400, 42400.1, 42400. 2, 42402.2, 43000, 43000.5, 43013, 43016, 43018, and 43018.2, Health and Safety Code.71 § 2449.3

. 2449.2. Surplus Off-Road Opt-In for NOx (SOON) Program

(a) Purpose

The purpose of this section is tTo achieve additional reductions of oxides of nitrogen (NOx) emissions from in-use off-road diesel-fueled vehicles in California. The reductions must be surplus to those that would ot herwise be achieved through implementation of title 13, California Code of Regulat ions, sections 2449, and 2449.1 and 2449.2, “Regulation for In-Use Off-Road Diesel-Fueled Fleets Vehi cles” (Off-Road regulation).

(b) Applicability

(1) District Applicability - Section 2449.32449.2 applies to any air quality management district or air pollution control dist rict (jointly referred to hereafter as air district) whose governing board elects to opt into the provisions of this section

as set forth in section 2449.3(f)2449.2(f) below.

(2) Fleet Applicability – Section 2449.32449.2 app lies to a fleet that: (A) Operates individual vehicles within the air district; (B) As of January 1, 2008, on a statewi de level, consisted of more than 40 percent Tier 0 and Tier 1 vehicles, and; (C) Has a statewide fleet with maximu m power (max hp) greater than 20,000 horsepower (hp), excluding the hp from engines in two-engine vehiclescranes and the hp from single engine cranes forme rly subject to the Cargo Handling Equipment Regulation.

(c) Definitions

The definitions in title 13, CCR, secti on 2449(c) apply, along with the following

definitions:

(1) “Contract period” means the period of time in whic h the vehicle participates in the program and is under contract to the ai r district to achieve additional emission

reductions. (2) “Operated within the district” means a vehicle that cu rrently operates within

the boundaries of the air dist rict and, during the three years immediately prior to the solicitation deadline, operated at least one hundred hours per year and operated more hours within the boundaries of the air distri ct than in any other

district. (3) “Project” means actions on one vehicle to reduce NOx emissions, such as retrofit, repower, or vehicle replacem ent, for which funding is requested. (4) “Solicitation” means a public announcement by the air district, requesting that fleets submit grant applicatio ns to the air district to participate in emission reduction incentive programs under this section. (5) “Solicitation deadline” means the last day, as provi ded in the solicitation, that an application may be physically re ceived by the air district.

(d) Requirements72 (1) If an air district, having held a public hearing and opted into the SOON program and made the program mandator y per section 2449.3(e)(9)2449.2(e)(9), issues a solicitation for applications for fundi ng under the SOON pr ogram, and if the solicitation so requires, a fl eet that meets the applicabilit y criteria of subsection (b) on the date of the solicitation mus t, before the solicitat ion deadline, do the following: (A) Report to District and ARB

- File a report, in a format approved by the Executive Officer, of all information required under section 2449(g) with the

air district and ARB on its statewide fl eet and that part of the fleet that has operated within the air district, as def ined in section (c)(2) above. If the

solicitation deadline is befor e April 1, 2009, the fleet must provide information regarding the fleet as it existed on January 1, 2008. If the solicitation deadline is on or after April 1, 2009, the fleet must pr ovide the information that was reported to ARB on the most recent MarchApril 1 reporting date. (B) Calculate NOx fleet average index - Determine the NOx fleet average index for vehicles that operated within the air district for the year in which the solicitation deadline occurs according to the formula in section 2449.1(a) (1)(A)1. (C) Calculate NOx SOON fleet average target rate - Determine the NOx SOON fleet average target rate for vehicles t hat operated within the air district for the year in which the solicitation deadline occurs according to the formula in section 2449.1(a) (1)(A)1, and using the SOON NOx targets set forth in Table

51 below. If there is no NOx SOON fleet average target rate for the year in

which the solicitation deadline occurs , the nearest futu re target rate

shouldshall be used.

Table 5 – SOON Targets for Each Max Hp Group For Use in Calculating SOON Fleet Average Target Rates [g/bhp-hr]

Table 1: NOx Targets for each Max Hp Group [g/bhp-hr]
Compliance Date: JanuaryMarch 1

of Year 25-49 hp 50-74 hp 75-99 hp 100-174 hp 175-299 hp 300-599 hp 600-750 hp >750 hp

2011 5.6 6.2 6.7 6. 0 5.4 5.1 5.3 6.4

2014 4.9 5.8 5.1 6.5 5.2 7.1 4.7 6.4 2.8 3.9 2.7 3.7 2.73.7 4.2 5.3

2017 4.2 5.0 4.1 5.4 3.8 5.5 3.4 4.9 1.5 2.2 1.5 2.2 1.5 2.2 3.2 4.3

2020 3.5 4.1 3.2 4.2 2.4 3.4 2.2 3.1 0.9 1.4 0.9 1.3 0.9 1.4 2.6 3.4

2023 3.5 3.3 3.2 3.0 2.4 1.4 2.2 1.3 0.9 0.7 0.9 0.7 0.9 0.7 2.6 2.7

(D) Apply for funding – Except as provided in section 2449.3(d)(2)2449.2(d)(2) and 2449.3(e)(3)2449.2(e)(3) below, a fleet for which the NOx fleet average index, as calculated in section 2449.3(d)(1)(B)2449.2(d )(1)(B), is greater than

the NOx SOON fleet av erage target rate, as calculated in section 2449.3(d)(1)(C)2449.2(d)(1)(C), must apply for SOON funding. The application submitted must be comple ted according to the guidelines and

conditions established under the solic itation and, if the necessary NOx retrofits, repower, or vehi cle replacements are available, must indicate how NOx retrofits, repowers, or vehicl e replacements for which funding is requested will bring the NO x fleet average index for vehicles that operated73 within the air district from where it would have been under compliance with section 2449.1 to less than or equal to the NOx SOON fleet average target rate calculated in section 2449.3(d)(1)(C )2449.2(d)(1)(C). The application

must also indicate whether the fleet wants the application to be given high priority for SOON program funding by the district. The funding priority shall

be determined under the air district guidelines developed per section 2449.3(f)(2)2449.2(f)(2). (E) Achieve NOx reductions - Fleets that receive SOON program funding must complete the actions for which they were funded per the conditions of the

solicitation. Fleets that do not receive requested SOON program funding are not required to take actions beyond co mpliance with Off-Road the in-use offroad diesel vehicle regulation, as s pecified in sections 2449, and 2449.1, and

2449.2. (2) Fleets not meeting the applicability provisions - A fleet that operates

individual vehicles within the air distri ct, but does not meet the applicability provisions of sections 2449.3(b)(2)(B)2449.2(b)(2)(B) and 2449.3(b)(2)(C)2449.2(b)(2)(C), are not required to file a report with the ARB or

the air district under section 2449.3(d)(1)2449.2(d)(1). It is also not required to apply for funding under subsection (d)(1)(D) , but may file a report with ARB or the air district under section 2449.3(d)(1 )2449.2(d)(1) and apply for funding if the NOx fleet average index calculated for its fleet operating within the air district exceeds the NOx SOON fleet average tar get rate, and the fleet would like to qualify for funding. If the air district approves the fl eet’s application for funding,

the fleet must achieve the NOx reductions as set forth in subs ection (d)(1)(E). Participating in the SOON program in one year does not obligate the fleet to participate in subsequent years. (3) Air districts that op t into the SOON program – Districts must prioritize requested projects based on the opt imum NOx cost-effectiveness and on whether the fleet requesting the SOON program funding has requested high priority for SOON program funding. Air di stricts must report to ARB, in a format approved by the Executive Officer, all projects funded under the SOON program, including the equipment identificati on number of all vehicles funded.

(e) Special Provisions
–

(1) Accounting for the Off-Road regulat ionin-use off-road diesel vehicle rule - (A) Reductions achieved through the SOON program must be surplus, over the entire contract period, to those required by the Off-Road regulation“Regulation for In-Use Off-Road Diesel Vehicles”, sections 2449

and 2449.1-2449.2 above. (B) During the contract period, vehicl es equipped with NOx re trofits, repowered with new engines, or that have been r eplaced using SOON program funding,

cannot use this lower emission rate to calculate the fleet average index and target rate,NOx indices, PM indices, NO x target rates, PM target rates, and

BACT turnover credit and re trofit credit under secti ons 2449.1 and 2449.2. Instead, for the purposes of calculati ng the fleet average index and target rate,NOx indices, PM indices, NOx ta rget rates, PM target rates, and BACT

turnover credit and retrofit credit under sections 2449.1 and 2449.2, these74 vehicles must be reflected as if t he actions taken under the SOON program

did not occur. Actions taken usi ng SOON program funding may be used for determining compliance under se ction 2449.1 and 2449.2 after the completion of the SOON progr am project contra ct period for that vehicle. For example, if a Tier 0 vehicle is repo wered with a Tier 3 engine with SOON program funds, for purposes of compli ance with sections 2449.1 and 2449.2,

that vehicle is still treated as if it we re a Tier 0 until the end of the contract period for the SOON program project. (C) If a fleet pays for a VDEC Sretrofit that is installed concurrently with a repower or vehicle replacement funded with S OON program funding, the fleet may count the VDECSretrofit toward determining compliance under section

2449.22449.1. If a fleet’s vehicle is repowered using SOON program funding with a Tier 4 engine that comes with an original engine manufacturer diesel particulate filter, and if the fleet pays a portion of the repower costs such that it offsets the cost of an equivalent VDEC Sretrofit diesel particulate filter, the fleet may count the original engine manufactu rer diesel particulate filter retrofit towards determining compliance under section 2449.22449.1. (2) Turnover in section 2449.1 - A fleet may apply to the Executive Officer for an extension from the require ments in section 2449.1(b)(a)(2)(A) if, using the accounting provisions in secti on 2449.3(e)(1)2449.2(e)(1), section 2449.1(b)(a)(2)(A) would require, prior to JanuaryMarch 1, 2014, a fleet to turn

over vehicles that are Tier 2 or better. The exemptions in sections 2449.1(b)(2), (b)(3), and (b)(6)(a)(2)(A)4.a. and section 2449.1(a)(2)(A)5. for vehicles less than 10 years old and Tier 21 vehicles do not apply to the SOON program. (3) Compliance plans - In addition to a SOON program application, a fleet applying for SOON program funding must prepare and submit to the air district a compliance plan, in the format described in the district guidelines, laying out the actions it is required to take under sections 2449.1 and 2449.2 and the actions for which it is applying for funding under section 2449.32449.2. Compliance plans must demonstrate that in the abs ence of any actions taken to satisfy section 2449.32449.2, the fleet will be able to meet the requirements of sections 2449.11 and 2449.2 through the remaining ac tions set forth in the plan. (4) Surplus - Participation in the SOON pr ogram does not reduce the actions required for any fleet to comply with any requirements in the Off-Road regulation

statewide in-use off-road diesel vehi cle regulation under sections 2449.1 and

2449.2. (5) Tracking devices - An air district may require any vehicle repowered, retrofitted, or replaced with incentive money th rough the SOON program to be equipped with a vehicle location device (per the air district’s guidelines and conditions for receiving funding) to ensure that the vehi cle is used in the air district for the required percent of operating hours. (6) Particulate Matter Retrofits
- a. The exemption from retrofit requirem ents for vehicles less than 5 years old in section 2449.2(a)(2)(A)4.a. does not apply to vehicles that are replaced or repowered with SOON program funds. (A)b. If a fleet has a vehicle that has been retrofitted within the last six years with a Level 2 or 3 VDECS, which was the highest level VDECS at the time of75 retrofit, the fleet may but is not required to apply fo r SOON funding for that

vehicle. (B)c. A fleet that receives SOON funding to repower or replace a vehicle is not required to install the highest leve l VDECS along with the repower or replacement. (7) Funding Guidelines - Projects funded under the SOON program with Carl Moyer program money must be administer ed consistent with applicable Carl Moyer program guidelines, except as noted in section 2449.3(e)(6)c2449.2(e)(6)(B). If a project is funded fr om other sources, the SOON program must be administered cons istent with any applicable guidelines. The air district shall develop guidelines for administration of the SOON program, as provided in section 2449.3(f)(2)2449.2(f)(2). (8) Vehicles Scheduled to Leave District – A fleet that has operated within the air district as defined in section 2449.3(c)(1) 2449.2(c)(2) but that is planning to move

vehicles out of the air district such t hat the vehicles will not operate enough hours in the air district to qualif y for SOON funding may leave such vehicles out of the NOx fleet average index calculation in section 2449.3(d)(1)(B)2449.2(d)(1)(B),

the NOx SOON fleet av erage target rate calculation in section 2449.3(d)(1)(C)2449.2(d)(1)(C), and the application for funding in section 2449.3(d)(1)(D)2449.2(d)(1)(D). The fleet must submit a statement under penalty of perjury to the district for each such vehicle stating its intent to move

each such vehicle out of the district. (9) Voluntary or Mandatory Nature of SOON - An air district, having held a public hearing and opted into this regulation, may issue a solicitation for applications for funding under the SO ON program. (A)a. For fleets in the South Coast Air Quality Management District and San Joaquin Valley Air Polluti on Control District, solicit ations with a deadline before April 2, 2009, shall be voluntary. For solicitations with a deadline on or after April 2, 2009, the South Coast Air Quality Management District and San Joaquin Valley Air Pollution C ontrol District may elect to make participation by fleets voluntary or mandatory. (B)b. In any district other than the South Coast Air Quality Management District or San Joaquin Valley Air Pollution Cont rol District, for solicitations with a deadline before April 2, 2010, participati on by fleets is voluntary. For solicitations with a deadline on or after Ap ril 2, 2010, the district may choose to make participation by fleet s voluntary or mandatory. (C)c. The solicitation shall announce the ai r district’s decision regarding voluntary or mandatory participation.

(f) Local Air District Opt-In

(1) To participate in the SOON program, an ai r district’s governing board must hold a formally noticed public hearing, where public comment is taken, and, by majority vote, elect to opt into the program. As part of this hearing, for years when section 2449.3(e)(9)2449.2(e )(9) gives the district a c hoice between a voluntary and mandatory SOON program, the air di strict’s governing board must decide whether participation by fleet s is voluntary or mandatory.76 (2) District Guidelines - An air district opting into section 2449.32449.2 must develop, through a public process includ ing a duly noticed public workshop and formally noticed public hearing, additional ad ministrative provisions necessary to implement this section, including, but not limited to, f unding guidelines (as required under section 2449.3(e)(7)2449.2(e)(7)), compliance planning requirements, and reporting and monitoring requirements. Funding guidelines may include limitations on the cost-effe ctiveness of projects that may be fundedand must include the method used for prioritizing projects based on costeffectiveness and whether applying fleets requested high priority for SOON program funding, and a description of any requirements on fleets that receive SOON funding to pay part of the SOON project cost. Compliance planning guidelines must indicate the format and l ength of compliance plans. Air district guidelines may include a pre-application process t hat collects vehicle data (model year, hphorsepower, hours of use) and then requires full SOON project applications only for vehicles likely to receive funding. (3) ARB Approval of Di strict Guidelines - Before any guidelines, including administrative or funding guide lines, approved by an air dist rict take effect, they must be approved by the Executive Office r. Air district staff shall submit proposed guidelines to the Executive Offi cer before they are acted on by the district’s governing board. The Exec utive Officer will respond within 30 days with a description of any required changes to the proposed guidelines necessary for Executive Officer approval. In evaluatin g proposed air district guidelines, the Executive Officer shall consider, among other factors, the adequacy of costeffectiveness criteria, whether fleet requests for high pr iority for SOON funding are given preference, and unifo rmity of district guidelines between air districts. After guidelines are adopted by a district’s governing board, air district staff shall submit the adopted guidel ines to the Executive Office r. The Executive Officer will respond within 30 days with approval or a description of any required changes to the guidelines. (4) ARB Authority – ARB has sole authority to enfor ce the requirements of section

2449.32449.2. The Executive Officer retains the authority to review any district’s

administration of section 2449.324 49.2 and to address any unforeseen

circumstances or events.

Note: Authority cited: Sections 39002, 39515, 39516, 39600, 39601, 39602, 43000, 43000.5, 43013, 43016, and 43018, Health and Safety Code. Refere nce: Sections 39002, 39515, 39516, 39600, 39601, 39602, 39650, 39656, 39657, 39658, 39659, 39665, 39667, 43000, 43000.5, 43013, 43016, and 43018, Health and Safety Code.77 Appendix A –

Use the values in thisthese tables unless engine is a Post-2007 Fl exibility Engine, or unless the engine is an engine cert ified to on-road standards.

Engines certified to on-road standards shouldshall use the standard to which the engine is certified. Flexibility engines certified January 1, 2007 or later shouldshall use the emission standard to which the engine is cert ified. Engines certified to FELFamily Emission Limits and flexibility engines certif ied before January 1, 2007, shouldshall still

use the emission factors in the table below.

Replacement engines produced per title 13, CCR, section 2423(j) shouldshall use the engine model year of the engine replaced. For an engine certified to an emission

standard lower than that shown in these tables for its model year, the emission standard to which the engine is certified may be used, provided that the certification Executive

Order or certificate number is provided along with the in itial and annual reporting required by section 2449(g)(1) and 2449(g)(2).

If the model year of an engine is unknown because it is missing a serial number, manufacturer’s build code, and/or an engine family number, and the engine

manufacturer or authorized r epresentative is unable to dete rmine the model year of the engine by examining the engine’s build and components, such an engine shall be treated as a 1969 model year engi ne. If a manufacturer can bracket the model year of an engine (for example that an engine was built between 1987 and 1 994) by examining the engine’s build and components, the ear liest date the engine could have been manufactured shall be used as the model year of that engine (in th e example, 1987).

For engines that have been retrofit with VDECS, the PM Emission Factor is reduced 50 percent for a Level 2 VDECS, and 85 percent for a Level 3 VDECS; the NOx Emission Factor is reduced by whatever percentage NOx emission reductions are verified. The

PM Emission Factor is not reduced for a Level 1 VDECS.78 

### PM Emissions Factors by Horsepower and Year (g/bhp-hr)

Engine Model

Year Horsepower Group

25-49 50-74 75-99 100-174 175-299 300-599 600-750 Over 750

1900-1969 0.950 1.200 1.200 1.100 1.100 0.950 0.950 0.950

1970-1971 0.950 1.200 1.200 0.940 0.940 0.810 0.810 0.810

1972-1987 0.950 1.200 1.200 0.780 0.780 0.680 0.680 0.680

1988 0.950 0.980 0.980 0.540 0.540 0.490 0.490 0.490

1989-1995 0.950 0.980 0.980 0.540 0.540 0.490 0.490 0.490

1996 0.950 0.980 0.980 0.540 0.40 0.40 0.40 0.500

1997 0.950 0.980 0.980 0.600 0.40 0.40 0.40 0.500

1998 0.950 1.090 1.090 0.600 0.40 0.40 0.40 0.500

1999 0.60 1.090 1.090 0.600 0.40 0.40 0.40 0.500

2000 0.60 1.090 1.090 0.600 0.40 0.40 0.40 0.40

2001 0.60 1.090 1.090 0.600 0.40 0.15 0.40 0.40

2002 0.60 1.090 1.090 0.600 0.40 0.15 0.15 0.40

2003 0.60 1.090 1.090 0.22 0.15 0.15 0.15 0.40

2004 0.45 0.30 0.30 0.22 0.15 0.15 0.15 0.40

2005 0.45 0.30 0.30 0.22 0.15 0.15 0.15 0.40

2006 0.45 0.30 0.30 0.22 0.15 0.15 0.15 0.15

2007 0.45 0.30 0.30 0.22 0.15 0.15 0.15 0.15

2008 0.22 0.22 0.30 0.22 0.15 0.15 0.15 0.15

2009 0.22 0.22 0.30 0.22 0.15 0.15 0.15 0.15

2010 0.22 0.22 0.30 0.22 0.15 0.15 0.15 0.15

2011 0.22 0.22 0.30 0.22 0.015 0.015 0.015 0.07

2012 0.22 0.22 0.015 0.015 0.015 0.015 0.015 0.07

2013 0.02 0.02 0.015 0.015 0.015 0.015 0.015 0.07

2014 0.02 0.02 0.015 0.015 0.015 0.015 0.015 0.07

2015 and later 0.02 0.02 0.015 0.015 0.015 0.015 0.015 0.0379 

### NOx Emissions Factors by Horsepower and Year (g/bhp-hr)
Engine Model

Year Horsepower Group

25-49 50-74 75-99 100-174 175-299 300-599 600-750 Over 750

1900 – 1969 7.2 14.8 14.8 15.9 15.9 15.2 15.2 15.2

1970 – 1971 7.2 14.8 14.8 14.8 14.8 14.1 14.1 14.1

1972 – 1979 7.2 14.8 14.8 13.6 13.6 13.0 13.0 13.0

1980 – 1987 7.2 14.8 14.8 12.5 12.5 11.9 11.9 11.9

1988 7.1 9.9 9.9 9.3 9.3 8.9 8.9 8.9

1989 – 1995 7.1 9.9 9.9 9.3 9.3 8.9 8.9 8.9

1996 7.1 9.9 9.9 9.3 6.9 6.9 6.9 8.9

1997 7.1 9.9 9.9 6.9 6.9 6.9 6.9 8.9

1998 7.1 6.9 6.9 6.9 6.9 6.9 6.9 8.9

1999 6.2 6.9 6.9 6.9 6.9 6.9 6.9 8.9

2000 6.2 6.9 6.9 6.9 6.9 6.9 6.9 6.9

2001 6.2 6.9 6.9 6.9 6.9 4.2 6.9 6.9

2002 6.2 6.9 6.9 6.9 6.9 4.2 4.2 6.9

2003 6.2 6.9 6.9 4.3 4.3 4.2 4.2 6.9

2004 4.9 4.9 4.9 4.3 4.3 4.2 4.2 6.9

2005 4.9 4.9 4.9 4.3 4.3 4.2 4.2 6.9

2006 4.9 4.9 4.9 4.3 2.6 2.6 2.6 4.2

2007 4.9 4.9 4.9 2.6 2.6 2.6 2.6 4.2

2008 4.9 3.0 3.0 2.6 2.6 2.6 2.6 4.2

2009 4.9 3.0 3.0 2.6 2.6 2.6 2.6 4.2

2010 4.9 3.0 3.0 2.6 2.6 2.6 2.6 4.2

2011 4.9 3.0 3.0 2.6 1.5 1.5 1.5 2.6

2012 4.9 3.0 2.5 2.5 1.5 1.5 1.5 2.6

2013 3.0 3.0 2.5 2.5 1.5 1.5 1.5 2.6

2014 3.0 3.0 2.5 2.5 0.3 0.3 0.3 2.6

2015 and later 3.0 3.0 0.3 0.3 0.3 0.3 0.3 2.6