1 

### A TTACHMENT 3

15

- DAY MODIFIED REGULATION ORDER

REGULATION FOR IN

- USE OFF

- ROAD DIESEL

- FUELED FLEETS VEHICLES

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

(Note: The amendments that were initially proposed to the Board at the December 2010 Board hearing are shown in underline to indicate additions and strikeout to

indicat e deletions. Modifications that are being proposed subsequent to the December 2010, Board hearing are shown in double underline to indicate additions and

double strikeout to indicate deletions. )

Article 4.8 In

- Use Off

- Road Diesel

- Fueled Fleets

Section 2 449 General Requirements for In

- Use Off

- Road Diesel

- Fueled Fleets

(a) Purpose

The purpose of this regulation is to reduce oxides of nitrogen (NOx), diesel particulate matter (PM)

, and other criteria pollutant emissions 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 government agency who owns or operates within California

any vehicles with a diesel

- fueled or alternative diesel fueled off

- road compression

- ignition engine with maximum power (max hp) of 25 horsepower (hp) or greater provided that t he vehicle cannot be registered and driven safely

on

- road or was not designed to be driven on

- road , 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 section 2449(c)(62 ), are subject to this regulation. (B) Both engines of t wo

- 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.2 (C) Both engines of two

- engine vehicles , as defined in section 2449(c)( 57 )

, that

were designed to be driven either on

- road or off

- road and contain an auxiliary engine ≥ 50 bhp are subject to th is regulation provided that :
1. T he two

- engine vehicle is not already subject to the Fleet Rule for Public Agencies and Utilities, title 13

, C CR , sections 2022 and 2022.1 ;
2. The two

- engine vehicle is not a two

- engine sweeper, as defined in the Truck and Bus regulation, ti tle 13, CCR, section 20 25; and

3. The two

- engine vehicle does not have a Tier 0 auxiliary engine. (D) This regulation applies to any person who sells a vehicle subject to this regulation within California. (E) 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 for the purposes of this regulation. (G) The follow ing are not subject to this regulation:

1. L ocomotives;

2. C ommercial marine vessels;

3. M arine engines;

4. R ecreational off

- highway vehicles;

5. C ombat and tactical support equipment;

6. S tationary equipment;

7. P ortable engines, except for auxilia ry engines included in subsection s (b)( 2 ) (B) and (b)(2)(C) above;

8. E quipment or vehicles used exclusively in agricultural operations;

9. Implements of husbandry;

10. Two

- engine s treet sweepers that are subject to the Truck and Bus Regulation, title 13 , C CR, section 2025;

11. Two

- engine vehicles that are subject to the Fleet Rule for Public Agencies
and Utilities, title 13

, C CR , sections 2022 and 2022.1 ;
12. Two

- engine vehicles , that are not two

- engine cranes or two

- engine water

well drilling rigs, that ha ve Tier 0 auxiliary engines;

13. E quipment subject to the Regulation for Mobile Cargo Handling equipment at Ports and Intermodal Rail Yards , title 13, CCR, section 2479 ; and

14. O ff

- road diesel vehicles owned 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 or operates within California any diesel

fueled or alternative diesel fueled off

- road compression

- ignition 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 registered and driven safely on

- road or was not designed to

be driven on

- road, and (2) is not an implement 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 desi gned to be driven on

- road, and have on

- road3 engines, and still meet the original manufacturer’s on

- road engine emission certification

standard are considered on

- road and are specifically excluded from this regulation, even if they have been modified so tha t they cannot be registered and driven safely on

road. Off

- road vehicles that were designed 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 s afely on

- road.

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

within California.

Persons who provide financing in the form of “finance leases,” as defined in California Uniform Commercial Code Section 10103(a)(7), f or in

- use off

- road diesel

- fueled vehicles, do not “own” such vehicles for the purposes of this regulation.

Vehicles with engines subject to this regulation are used in construction, mining, rental, government, landscaping, recycling, landfilling, manufac turing, warehousing, ski industry, composting, airport ground support equipment, industrial, and other operations. The regulation does not cover locomotives, commercial marine vessels, marine engines, recreational vehicles, or combat and tactical support equipment. The regulation also does not cover stationary or portable equipment, equipment or vehicles used exclusively in agricultural operations, or equipment already subject to the Regulation for Mobile Cargo Handling Equipment at Ports and Intermodal R ail Yards.

Off

- road diesel vehicles owned and operated by an individual for personal, non

commercial, and non

- governmental purposes are exempt from the provisions of this regulation.

(c) Definitions

**(1) “Agricultural operations”** means (1) the growing or harvesting of crops from soil (including forest operations) and the raising of plants at wholesale nurseries, but not retail nurseries), or the raising of fowl or animals for the primary purpose of making a profit, providing a liv elihood, or conducting agricultural research or instruction by an educational institution, or (2) agricultural crop preparation services such as packinghouses, cotton gins, nut hullers and processors, dehydrators, and feed and grain mills. Agricultural cr op preparation services include only the first processing after harvest, not subsequent processing, canning, or other similar activities. For forest operations, agricultural crop preparation services include milling, peeling, producing particleboard and

m edium density fiberboard, and producing woody landscape materials.

For purposes of this regulation, a vehicle 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.4 **(2) “Airport ground support equipment”** ( GSE) is mobile diesel

- fueled off

- road compression ignition vehicles used to service and support aircraft operations.

GSE vehicles p erform a variety of functions, including but not limited to: aircraft maintenance, pushing or towing aircraft, transporting cargo to and from aircraft, loading cargo, and baggage handling. GSE vehicles include equipment types such as baggage tugs, belt lo aders, 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 Regulations (CCR) , and does not require engine or fuel system modifications for the engine to operate, although minor modifications (e.g., recalibration of the engine fuel control) may enhance performance. Examples of alternative diesel fuels include, but are not limited to,

bi odiesel, Fischer

- Tropsch fuels, and emulsions of water in diesel fuel. A diesel fuel containing a fuel additive will be treated as an alternative diesel fuel unless: ( A) the additive is supplied to the vehicle or engine fuel by an on

- board dosing

mechanis m, or (B) the additive is directly mixed into the base fuel inside the fuel tank of the vehicle or engine, or (C) the additive and base fuel are not mixed until engine fueling commences, and no more additive plus base fuel combination is mixed than require d for a single fueling of a single 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 diesel fuel. “Alternative fuel” also means any of these fuels used in combination 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) exhaust retrofit and accelerated turnover requirements in section s 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 identified subpart of the fleet (fleet portion, consistent with section 2449(d)), in which all of the vehicles in the fleet or fleet portion operate exclusively within the following counties: Alpine, Colusa, Del Norte, Glenn, Humboldt, Lake, Lassen, Men docino, Modoc, Monterey, Northern Sonoma, Plumas, San Benito, San Luis Obispo, Santa Barbara, Santa Cruz, Shasta, Sierra, Siskiyou, Trinity, Tehama, and Yuba. A fleet or identified fleet portion that operates one or more vehicles outside the counties list ed above is not a captive attainment area fleet. Captive a A ttainment a A rea f F leets shall be

treated as small fleets even if their total max hp maximum power exceeds 2,500 hp horsepower

. All fleets owned 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 section5 2449(c)(24)(A))

, and vehicles owned by such fleets, regardless of whether they

opera te exclusively within the above counties, are not part of a captive

attainment area fleet.

**(7) “Carryover retrofit credit”** , as calculated under section 2449.2(a)(2)(A)2., means a way of tracking retrofits accomplished in excess of those required by

the B ACT retrofit requirements. 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 tracking turnover or PM VDECS

installations accomplished in excess of the BACT turnover requirements. Fleets may take credit for such excess turnover or PM VDECS installations to do less

turnover or PM 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 relief 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, partnership, or association. Vehicles managed by the same directors, officers, or managers, or by corporations controlled by the same majority stockholders are considered to be under common ownership or control even if their title is held by different business

entities.

**(10) (11)**  **“Compression ignition engine”** means an internal combustion engine with operating char acteristics significantly similar to the theoretical diesel combustion cycle. The regulation 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 v ehicle 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 include, 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 emissions by directing all of the exhaust through a filter that physically captures particles but permits gases to flow6 through. Periodically, the collected particles 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 compression ignition engines. Diesel PM may agglomerate and adsorb other species to form structures of complex physical and chemical properties. The Air Resources 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 Ind ex for a specific fleet is determined by summing the 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 fle et 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 Target Rate for a specific fleet for each compliance year is determined by summing (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

pu blic 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, fire, other infrequent act of nature, or terrorism.

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

**(16) (19)**  **“Emission f**  F

**actor”** means PM or oxides of nitrogen ( NOx ) emission rate in grams per brake

- horsepower hour (g/bhp

- hr) as shown in Appendix A

. , unless the engine is a Post

- 2007 Flexibility 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 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 the percentage NOx emission reductions that are verified, if any . The PM Emission 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 recordkeepi ng will link vehicle data with this

number.7 **(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

- roa d vehicles and engines owned by a person, business, or government agency that are operated within California and are subject to the regulation. A fleet may consist of one or more vehicles. A fleet does not include vehicles that have never operated in Cal ifornia.

“Fleet portions”

– means that part of a fleet for which daily operations and dispatching are managed by different responsible officials because they are part of different subsidiaries, divisions, or other organizational sub structures 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 some or all the fleet portions comply with the performance requ irements separately and be reported separately. 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 max hp of the vehicles under common ownership or contro l of the parent company, corporation,

or agency determines the fleet size. Once a fleet begins to comply and report separately as fleet portions, the fleet portions must continue to comply and report separately, and the fleet portions 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 i ndex for a specific fleet is determined by summing (adding) the product of the max hp maximum power of each engine times the E e mission

F f actor, and dividing by the fleet’s total max hp maximum power

.

**(22) “Fleet average target rate”** means the fleet average that a specific fleet must meet in a compliance year in ord er to show compliance with the fleet average requirements. The fleet average target rate varies depending on a fleet’s hp horsepower distribution. The fleet average target rate for a specific fleet for each compliance year is determined by summing (adding ) the product of the maximum power (M m ax H h p ) of each engine times the target, and dividing the resulting sum by the fleet’s total max hp maximum power

.

(2 3 ) (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 that are owned by a rental or leasing company and that are leased by the same lessee for a period of one year or8 m ore may be excluded from the rental company fleet and included in the fleet of the lessee only if such arrangement is delineated 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 the 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 o f at least one year, dated prior to the effective date of these regulations, are considered part of the fleet of the lessee

rather than the lessor.

**(2 4**  **) (25)**  **“Fleet s**  **S ize**  **c C**  **ategory”**

– F means f leets are classified by size as

described below. A fleet must m eet large fleet requirements if the total vehicles under common ownership or control would be defined as a large fleet. A fleet must meet medium fleet requirements if the total vehicles under common ownership or control would be defined as a medium fleet. Individual federal or state agencies may report as separate fleets, but all vehicles owned by agencies of the United States or the State of California agencies must meet the large fleet requirements. Permanent and year

- by

- year l L ow

- use vehicles, dedicated snow

removal vehicles, and vehicles used solely for emergency operations need not

be included in the total max hp maximum power used to classify fleets by size. (A) “Large f F leet”

– A fleet with a total max hp maximum power (as d efined 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 owned by the United States, the State of California, or age ncies thereof (i.e., an agency 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 f F leet”

– A fleet that is not a small or large fleet. (C) “Small f F leet”

– A fleet with total max hp maximum power of less than or equal to 2,500 hp that is owned by a business, non

- profit organization, or local municipality, or a local municipality fleet in a low population county irrespective of tot al max hp maximum power

, or a non

- profit training center irrespective of total max hp maximum power , or a captive attainment area fleet irrespective of total max hp

.

**( 25)**  **“ F** 

**lexibility e**  **ngine”** means an engine certified to the implementation flexibility standards in title 13, CCR, section 2423(d).

“P ost

- 2007 flexibility engine”

– A flexibility engine certified on or after January 1,

2007. Such flexibility engines are generally labeled as fol lows by the engine

manufacturer:

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

"THIS ENGINE CONFORMS TO CALIFORNIA OFF

- ROAD9 COMPRESSION

- IGNITION ENGINE REGULATIONS UNDER 13 CCR, 2423(d)."

**(26) (2**  **5 )**  **(26) “Forest op**  **erations”** means (A) forest fire prevention activities performed by public agencies, including but not limited to construction and maintenance of roads, fuel breaks, firebreaks, and fire hazard abatement or (B) cutting or removal or both of timber, other so lid wood products, including Christmas trees, and biomass from forestlands for commercial purposes, together with all the work incidental thereto, including but not limited to, construction and maintenance of roads, fuel breaks, firebreaks, stream crossing s, landings, skid trails, beds for falling trees, fire hazard abatement, and site preparation that involves disturbance of soil or burning of vegetation following forest removal activities. Forest operations include the cutting or removal of trees, tops, limbs and or brush 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

other land uses such as residential or c ommercial 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 Requirements 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 months prior to the compliance dat e, which (1) can be used without impairing the safe operation of the vehicle as demonstrated per section 2449(e)(8), and (2) the diesel emission

- control strategy

manufacturer and authorized diesel emission

- control strategy dealer agree can be used on a spe cific engine and vehicle 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) (**  **26 )**  **(28)** “ **Hour m**  M **eter l**  L

**og** ” means a log of the hours that a vehicle operated directly taken from the vehicle’s hour meter.

**(28) (**  **27 )**  **(29) “Implement of husbandry”**  is as defined in California Vehicle Code (Veh.Code) division 16.

**(29) (2**  **8 )**  **(30) “Local**  **m** M **unicipality”** means a city, county, city and county, special district, or other public agency, or two or more public entities acting jointly, or the duly constituted body of an Indian reservation or rancheria. Agencies of the10 United States of America or the State of C alifornia, and departments, divisions, public corporations, or public agencies of this State or of the United States are not considered local municipalities.

**(30) (**  **29 )**  **(31) “Low** 

**- p**  **P opulation**  **c C**  **ounty l**  **L ocal**  **m M**  **unicipality f**  **F**

**leet”** means a fleet owned by a lo cal municipality (as defined above) that is located in a county as defined in title 13, CCR, section 2022(b)( 4 2 ) and identified in section

2022 .1 (c)(2), Table 2, or, using the criteria set forth in title 13, CCR, section 2022.1(c)(4), a local municipality not located in a low

- population county that has requested and has received Executive Officer approval to be treated like a municipality in a low

- population county. Fleets owned by such local municipalities shall be treated as small fleets even if their total max hp maximum

power exceeds 2,500 hp horsepower

.

**(32) “Low**

**- use vehicle”**  means a vehicle that operated in California less than 100 hours during the preceding 12

- month period running from 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 ve hicle, the fleet owner must submit 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

- use vehicle definition if they are u sed 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 t han 100 hours per year during that previous three

- year period. (C) Emergency operation hours

- Hours used for emergency operations are not counted when determining low

- use status.

**(31) (**  **3 0**  **) (33)**  **“Maximum power” ( M** 

**m ax**  **H h** 

**p)** means the engine’s net horsepower (hp) or net flywheel power certified to Society of Automotive Engineers (SAE) Method J1349 or International Organization for Standardization (ISO) Method 9249. If the engine’s net hp horsepower or net flywheel power certified to SAE

Method J1349 or ISO Method 9249 is not readily available, another net hp horsepower or net flywheel power from the manufacturer’s sales and service

literature or hp horsepower from the engine label may be used.

**(32) (**  **3 1**  **) (34)**  **“Model year”** has the same meaning as defined in title 13, CCR, section 2421(a)(37).

**(33) (**  **3**

**2**

**) (35)**  **“Motor vehicle”** has the same meaning as defined in Veh. Code

section 415.

**(34) (**  **3 3**  **) (36)**  **“New fleet”** means a fleet that is acquired or that enters California on

or after January 1, 2011 March 1, 2009 . Such fleets may include new11 businesses or out

- of

- state businesses that bring vehicles into California for the

first time on or after January 1, 2011

. 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 aver age that a specific fleet must meet in a compliance year in order to show compliance with the fleet average requirements. The NOx Target Rate varies 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 product of the maximum power (Max Hp) of each engine times the NOx target, and dividing the resulting sum by the fleet’s total maximum power.

**(35) (**  **3 4**  **) (39)**  **“Non**

**- p**  **P rofit**  **t T**  **raining c**  **C enter”**  means an entity that operates a program for training in the use of off

- road vehicles 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 profit 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 off

road training program are not considered part of a non

- profit training center and

must be considered a s eparate fleet.

**(36) (**  **3 5**  **) (40)**  **“Off**

**- highway vehicle”**  is defined in Veh. Code division 16.5.

**(37) (**  **3 6**  **) (41)**  **“Operator l**  **L og”**  means a log of the hours that a vehicle operated taken from records of vehicle operator hours.

**(38) (**  **3 7**  **) (42)**  **“Oxides of nitrogen” (NOx)** means compounds of nitric oxide, nitrogen dioxide, and other oxides of nitrogen. Nitrogen oxides are typically created during combustion processes and are major contributors to smog formation and acid deposition.

**(39) (**  **3 8**  **) “**  **Permanent low** 

**- use**  **vehicle ”**  means a vehicle that a fleet owner has designated as operating limits to less than 200 hours a calendar year, of use in

all following years, defined as the 12

- month period running from January 1

t hrough December 31 for all years subsequent to the designation . For example, if a fleet designates a vehicle as permanent low

- use at any point in 2014 , that

vehicle can not only be used more less than 200 hours in any calendar year from

2015 onwards. between January 1, 2015, and December 31 , 20 1 5 , or during any subsequent January 1 to December 31 period. To be considered a permanent

low

- use vehicle , the fleet owner must submit the engine hours of operation from a functioning non

- resettable hour meter.12 (A) Vehicles used outside California

- Vehicles that operate both inside and outside of California can meet the permanent 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 permanen t low

- use status. (C) Future increase in hours

– Once designated as permanent low

- use, a vehicle may only never again be use d up to more than 200 hours per year by the fleet unless the vehicle meets the adding vehicles requirements in section 2449(d)(6). If the vehicle meets the adding vehicle requirements, the fleet may increase the use to over 200 hours or more per year, and report the updated status of the vehicle to remove the low

- use designation. (D) No obligation

– A fleet is not obliged to designate a vehicle whose use drops below 200 hours per year as a permanent low

- use vehicle . If such a vehicle

is not d esigna ted as permanent low

- use, its use may increase beyond to 200

hours or more per year in subsequent years without meeting the adding vehicles requirements in section 2449(d)(6). (E) Two

- engine vehicles

– B oth engines of two

- engine vehicles must each

op erate less than 200 hours per year in order for the vehicle to be considered a permanent low

- use vehicle.

**( 39**  **)** (43) **“ Post** 

**- 2007**  **f F** 

**lexibility e**  **E ngine”**  means an engine certified on or after January 1, 2007 to the implementation flexibility standards in title 13, CCR, section 2423(d). Such flexibility engines are generally labeled as follows by the engine manufacturer:

"THIS ENGINE COMPLIES WITH CALIFO RNIA 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 use the emission standard to which the engine is certi fied. For example, a Tier 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 (converted from grams per kilowatt hour (g/kW

- hr) to g/bhp

- hr by multiplying by 0.746 ).

**(4 0**  **) (44)**  **“Queuing”** means the intermittent starting and stopping of a vehicle while the driver, in the normal course of doing business, is waiting to perform work or a service, and when shutting the vehicle engine 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.

**(4 1**  **) (45)**  **“Registered and driven safely on**

**- r**  **oad”** means a vehicle meets the requirements to be registered for on

- road operation in Veh. Code division 3,13 chap. 1, article 1, sections 4000 et seq. (i.e., required to be registered or could be registered), and the requirements to be driven safely on

- road in “Equipment of Vehicles” requirements in Veh. Code division 12, chap. 1, sections 24000 et seq. and “Size, Weight, and Load” requirements in Veh. Code division 15,

sections 35000 et seq. Having a California Special Construction Equipment plate

as defin ed in California Veh. Code sections 565 and 570 does not constitute registration.

**(4 2** 

**) (46)**  **“Replacement”** means the addition of off

- road diesel vehicles to a fleet that

had retired one or more off

- road diesel vehicles of an equivalent hp horsepower in

a g iven year

.

**(4 3**  **) (47)**  **“Repower”** means to replace the engine in a vehicle with another engine meeting a subsequent engine emissions standard (e.g., replacing a Tier 0 engine with a Tier 2 or later engine).

**(4 4**  **) (48)**  **“Responsible o**  **O fficial”**  means one of the following: (A) For a corporation: A president, secretary, treasurer, or vice president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision

- making functions for the corporation

. , (B) For a partnership or sole proprietorship: 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 official. For the purposes of this part, a principal executive officer of a federal agency includes the chief executive officer having responsibility for the overall operations of a principal geographic unit of the agency (e.g., a Regional Administrator of the U.S. EPA).

**( 45**  **) (49)**  **“Retire or retire**  **ment ”**  means to take an removal of an engine out of

service from fleet service

, and so that the engine is not subsequently operate d it again by the fleet in the State of California. 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 rented or leased vehicle by a fleet to a rental or leasing company is not considered to be a retirement. Similarly, the rental or leasing of a vehicle by a rental or leasing company does

not count as a retirement for the 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 equivalent function and perform equivalent

work is available.14 **(4 8**  **) (52)**  **“Tier 0 e**  **E ngine”**  means an engine not subject to the requirements in

title 13, CCR, section 2423; Tit le 40, Code of Federal Regulations (CFR), Part 89; or Title 40, CFR, Part 1039.

**( 49**  **) (53)**  **“Tier 1 e**  **E ngine”**  means an engine subject to the Tier 1 new engine emission standards in title 13, CCR, section 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 with 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).

**(5 0**  **) (54)**  **“Tier 2 e**  **E ngine”**  means an engine subject to the Tier 2 new engine

emission standards in title 13, CCR, section 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 with respect to the T ier 2 FEL listed in title 13, CCR, section 2423(b)(2)(A) and/or Title 40, CFR, Part 89.112(d).

**(5 1**  **) (55)**  **“Tier 3 e**  **E ngine”**  means an engine subject to the Tier 3 new engine

emission standards in title 13, CCR, section 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 with respect to the Tier 3 FEL listed in title 13, CCR, section 2423(b)(2)(A) and/or Title 40, CFR, Part 89.112(d).

**(5 2** 

**) (** 

**56 )**  **“Tier 4 Final e**  **E ngine”**  means a n engine subject to the final after

treatment

- based Tier 4 emission standards in title 13, CCR, section 2423(b)(1)(B) and/or Title 40, CFR, Part 1039.101. This also includes engines certified under the averaging, banking, and trading program with respect to the Tier 4 FEL listed in title 13, CCR, section 2423(b)(2)(B) and/or Title 40, CFR, Part

1039.101.

**(5 3**  **) (** 

**57 )**  **“Tier 4 Interim e**  **E ngine”**  means an engine subject to the interim Tier 4 emission standards (also known as transitional) in title 13, CCR, section 2423(b)(1)(B) and/or Title 40, CFR, Part 1039.101. This also includes engines certified under the averaging, banking, and trading program with respect to the Tier 4 FEL listed in title 13, CCR, section 2423(b)(2)(B) and/or Title 40, CFR,

Part s 1039.101 1039.102 and 1039.104(g)

.

**(5 4**  **) (** 

**58 )**  **“Total maximum power” (total max hp)**  means the sum of the max hp maximum power for all of a fleet’s engines that are subject to this regulation. Permanent and year

- by

- year l L ow

- use vehicles, dedicated snow

- remov al vehicles, and vehicles used solely for emergency operations shall need not be

included in the sum.

**( 55**  **) “Turnover”**  means retiring a vehicle , designating a vehicle that formerly operated 200 hours or more per year as a permanent low

- use vehicle

, repowering a vehicle with a higher tier engine

, or rebuilding the engine to a more stringent emissions configuration , or applying a Verified Diesel Emission Control15 Strategy verified to reduce NOx emissions

. Rent ed 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**

**- e**  **E ngine**  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 diesel engines: one engine provides the primary source of motive power of the 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

.

**(58 )**  **(**

**57 )**  **(60)** “ **Two**

**- e**  **ngine w**  **ater**

**- w**  **ell d**  **rilling r**  **ig”** means a mobile diesel

- powered drilling rig owned by a water well drilling contractor with a current, 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 chasses 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) (**  **58 )**  **(**

**60 )**  **“Verified d**  **D iesel**  **e E**  **mission c**  **C ontrol**  **s S**  **trategy” (VDECS)** means an emissions control strategy , designed primarily for the reduction of diesel PM
emissions, which that has been verified pursuant to the “ Verification Procedures

, Warranty and In

- Use Compliance Requirements 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 achieve 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 l**  **evel PM VDECS”** means the highest level VDECS verified by

ARB to reduce P M under its Verification Procedure. The highest level is determined solely based on verified diesel PM reductions, not based on

verified NOx reductions. VDECS can be verified to achieve Level 1 diesel PM reductions ( at least 25 percent), Level 2 diesel P M reductions ( at least 50 percent), or Level 3 diesel PM reductions ( at least 85 percent). All Level 3 diesel PM devices are higher than all Level 2 diesel PM devices. Level 1 PM devices are never considered highest level PM VDECS for the purpose of this regulation. “ Plus ” designations do not matter; that is, a Level 3 Plus is the16 same diesel PM level as Level 3; and Level 2 Plus is the same diesel PM

level as Level 2. A PM VDECS shall be considered the highest level PM VDECS only if it (1) it can be used without impairing the safe operation of the vehicle as demonstrated per section 2449(e)(8), and (2) the diesel emission

control strategy manufacturer and authorized diesel emission

- control strategy dealer agree it can be used on a specific engi ne and vehicle combination without jeopardizing the original engine warranty in effect at the time of application. **(B) “VDECS v**  **erified to r**  **educe 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 reduction in NOx emissions from the engine achieved by the VDECS

. See also definition of Verified Percent NOx

Reduction.

**(60) (59)**  **“Verified p**  **ercent NOx r**  **eduction”** means the verified percent reduction in

NOx emissio ns from the engine achieved by the VDECS V v erified to R r educe

NOx

.

**(61) (**  **60 )**  **(**

**61 )**  **“VDECS f**  **F**

**ailure”** means the condition of a VDECS not achieving the

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

**(62) (**  **6 1**  **) (**  **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) (**  **6**

**2**

**) “Year** 

**- by** 

**- year low** 

**- use**  **vehicle ”**  means a vehicle that operated in

California less than 200 hours during the preceding 12

- month period running

from January 1 to December 31 calendar year . For example, when reporting in

2014 , the hours of use between January 1, 2013 an d December 31, 2013 would be used to determine year

- by

- year low

- use status. To be considered a year

- by

year low

- use vehicle , the fleet owner must annually submit engine operation data from a functioning non

- resettable hour meter. (A) Vehicles used outsid e California

- Vehicles that operate both inside and outside of California can meet the year

- 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 Calif ornia 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 previous three

- year period. (C) Emergency operation hours

- Hours used for emergency operations are not counted when determining year

- by

- year low

- use status.17 (E) Two

- engine vehicles

– Both engines of two

- eng ine vehicles must each
operate less than 200 hours per year in order for the vehicle to b e considered

a year

- by

- year low

- use vehicle.

(d) Performance Requirements

–

Fleets that are subject to fleet average requirements in section 2449.1(a) may include vehicles and systems used in place of diesel vehicles in their fleet average index and target rate calcul ations as described in subsection (1) below. Fleets that are subject to fleet average requirements may opt to include hours of operation in the fleet average calculation as described in subsection (2) below. Each fleet must meet the performance requireme nts in subsections (3) to (10) (2) to (9) below. There are differing requirements for large, medium, and small fleets. As stated in section 2449( c )(20), If various portions of a fleet are under the control of different responsible officials because they a re part of different subsidiaries, divisions, or other organizational structures of a company or agency, the fleet portions may comply with the performance requirements separately and be reported separately. However, the total maximum power of the vehicle s under common ownership or control determines the fleet size. Captive attainment area fleets,

non

- profit training centers, and F f leets owned by low

- population county local municipalities are subject to the small fleet requirements, even if their total ma x hp maximum power exceeds 2,500 hp horsepower . Section 2449(d)(4) 2449(d)(3) describes requirements for fleets that change in size.

**(1) Vehicles and Systems Used in Place of Diesel Vehicles**

- Fleets with electric

, or alternative fuel , or gasoline

- powered vehicles may include such vehicles in their fleet average index and target rate calculations as follows: (A) Electric and Alternative Fuel and Gasoline

- p P owered Vehicles Purchased on or after January 1, 2007 1. Fleets may include an electr ic and alternative fuel or gasoline

- powered

vehicle purchased on or after January 1, 2007, with a max hp maximum

power 25 hp horsepower or greater ( or that replaced a diesel vehicle with max hp maximum power 25 hp horsepower or greater ) in their fleet average

index if all of the following conditions are met: a. 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,

b. The electric o r alternative fuel vehicle is used predominantly outdoors,

c. The electric or alternative fuel vehicle is not already included in the fleet average emission level requirements for L l arge S s park I i gnition

E e ngine F f leets in title 13, Section 2775.1; and

d. If the vehicle is an alternative fuel vehicle, t T he owner must demonstrate that it is certified to a NOx standard less than or equal to

the Tier 1 NOx standard for the same hp horsepower in title 13, CCR, section 2423(b)(1)(A) and is less than or equal to t he NOx emissions of a diesel engine of the same model year and hp horsepower

.18 e. If the vehicle is a gasoline

- powered vehicle, the owner can 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 vehicle, and the dates of sale and purchase for both vehicles and show that the diesel vehicle was retired from the fleet within 6 months of the date that the gasoline

powered vehi cle was added to the fleet

. 2. Fleets may include a diesel vehicle with a max hp maximum power 25 hp horsepower or greater that has been repowered with an alternative fueled or gasoline

- powered engine in their fleet average index and target

rate calculation s.
3. For the purposes of compliance with section 2449.1 (a) (1) : a. Alternative fuel vehicles

- Each alternative fuel vehicle , or diesel vehicle that has been repowered with an alternative fuel engine, shall

use a n E e mission F f actor equal to the NOx emission standard to which its engine is certified in g/bhp

- hr. If the 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 m ust demonstrate that the chosen emission factor is appropriate and not exceeded by the alternative fuel vehicle.

b. Gasoline

- powered vehicles

– Each gasoline powered vehicle , or vehicle that has been repowered with a gasoline

- powered engine, shall

use a n E e mission F f actor equal to the 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 vehicle with a max hp maximum power 25 hp horsepower or greater that has been converted to alternative fuel or gasoline

- power in their fleet average index and target rate

calculations. The E e mission F f actor for NOx remains the same as the

emission factor for the diesel vehicle. The Emission Factor for PM is 0. 3. For the purposes of compliance 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 fleet, 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 fu nction 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 the same functions and equivale nt work. If no request to the Executive Officer is received, the electric vehicle’s own maximum power rating should be used.

b. Double Credit for 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 that19 is used in calculating the Diesel PM Index, and as appropriate, NOx

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

electric vehi cle is included but not doubled in the calculation of Diesel PM Target Rate and NOx 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 Janu ary 1, 2007 is used in determining the Max Hp that is used in calculating the Diesel PM and NOx Target Rates, Diesel PM Index, and, as appropriate, NOx Index. An Emission Factor of 0 may be

used. 4. For the purposes of compliance with sections 2449.1(a)( 1) and 2449.2(a)(1), each alternative fuel vehicle should use an Emission Factor equal to the emission standard to which its engine is certified in g/bhp

- hr.

If the alternative fuel vehicle is not certified to a NOx or diesel PM
emission standard, the own er 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 vehicle with a max hp maximum power 25 hp horsepower or greater or that replaced a diesel vehicle with max hp maximum power 25 hp horsepower or greater in their fleet average

index if all the following conditions are met: a. 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 ; b. The electric vehicl e is used predominately outdoors; and

c. Except as provided in section 2449(d)(1)(B)(2)(a), t he electric vehicle is not already included in the fleet average emission level requirements

for L l arge S s park I i gnition E e ngine F f leets in title 13, s S ection 2775.1. 2. For the purposes of compliance with sections 2449.1 (a) (1) , electric

vehicles shall be credited as follows:

a. 1. GSE Electric Vehicles Purchased Prior to January 1, 2007

- : Electric airport GSE vehicles with a max hp maximum power of 25 hp horsepower or greater ( or that replaced a diesel vehicle with max hp maximum power 25 hp horsepower 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 hp maximum power of the diesel vehicle replaced may be used as the electric vehicle’s max hp Max Hp . Otherwise, the electric vehicle’s own max
h p maximum power rating should shall 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 Fleet20 Target Rate, Diesel PM Index, and, as appropriate, NOx Fleet Average Index in se ction s 2449.1 (a) (1) , along with an E e mission

F f actor of 0.

b. Non

- GSE Electric Vehicles Purchased Prior to January 1, 2007

– Electric vehicles with a max hp maximum power of 25 hp horsepower or greater or purchased prior to January 1, 2007 that replaced a diesel

vehicle with max hp maximum power 25 hp horsepower or greater

, purchased prior to January 1, 2007, may be counted in the fleet average calculations a s follows: i. Max Hp for Electric Vehicles

- For an electric vehicle that replaced a

d iesel vehicle in the owner’s fleet, the max hp maximum power of the diesel vehicle replaced may be used as the electric vehicle’s max hp Max Hp . Otherwise, the electric vehicle’s own max hp maximum power rating shall be used.

ii. Include such vehicle’s max hp Max Hp as the max hp Max Hp in calculating the fleet average index and target rate Fleet Target Rate, and, as appropriate, the Fleet Average Index in section

2449.1 (a) (1) , along with an E e mission F f actor of 0.

c. Electric Vehicles Purchased on or after Ja nuary 1, 2007 i. Max Hp for Electric Vehicles

- For an electric vehicle that replaced a diesel vehicle in the owner’s fleet, the max hp maximum power of the diesel vehicle replaced may be used as the electric vehicle’s

max hp 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 maximum power of a diesel vehicle that serves the same function and performs equivalent work

to that of the electric vehic le. In making his or her determination, the Executive Officer will approve the use of the minimum

max hp Max Hp of a diesel vehicle that would be required to perform the same functions and equivalent work. If no request to the

Executive Officer is receive d, the electric vehicle’s own max hp maximum power rating shall be used.

ii. Double Credit for Electric in 2014

- 2016

- For compliance dates in

2014 through 2016, the max hp Max Hp of all electric vehicles purchased on or after January 1, 2007 may be doubled in determining the max hp Max Hp that is used in calculating the F f leet

A a verage I i ndex. An E e mission F f actor of 0 may be used. The

max hp Max Hp of each electric vehicle is included but not doubled

in the calculation of F f leet A a verage T t arget R r ate. iii. Single Credit for Electric in 2017 and Later

- For compliance dates in year 2017 and later, the max hp Max Hp of all electric vehicles purchased on or after January 1, 2007 is used in determining the

max hp Max Hp that is used in calculating the fleet a verage index and target rate Fleet Average Target Rate, and the Fleet Average

Index . An E e mission F f actor of 0 may be used.21 3. Electric vehicles need not be included when determining fleet size, or when calculating the required hp horsepower for the BACT requirements in

section 2449.1 (b) (a)(2)

. 2. Non

- GSE: a. Fleet owners may count a non

- GSE electric 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

ou tdoors, iii. the vehicle is not already counted toward the fleet average emission level requirements for large 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 emission st andard to which its engine is certified in g/bhp

- hr. If the alternative fuel vehicle is not 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 demo nstrate that the chosen emission factor is appropriate and not exceeded by the alternative 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 that replace mobile diesel vehicles, such as an electric conveyor system used to replace diesel haul trucks at a mine, in the fleet average calcula tions. The system may be considered in the fleet average calculations by including the max hp maximum power of the diesel vehicles replaced in the calculations of the fleet average index and target rate Fleet Average Target Rate, Diesel PM Index, and NOx Fleet Average Index above, along with an E e mission F f actor 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 regulation on or a fter January 1, 2007, and 2. The system is not already counted toward the fleet average emission level requirements for L l arge S s park I i gnition E e ngine F f leets in title 13, CCR, section 2775.1 or for portable diesel engine fleets in title 17, CCR, section

93116.3.22 (D) Hybrid Off

- Road Vehicles Fleets may include a hybrid off

- road diesel vehicle with a max hp maximum

power 25 hp horsepower or greater in their fleet average index and target rate

calculation. The E e mission F f actor 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 E e mission F f actor , other than the standard to which the engine is certified , the owner may apply to t he Executive Officer to

use an alternative emission factor. The Executive Officer shall approve the alternative emission factor if, in the fleet owner’s application, 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

- powered vehicle of 25 horsepower or greater that replaces a diesel vehicle on or after January 1, 2007 in their fleet average only if all the following conditions are met: 1. The owner can identify the diesel vehicle that the gasoline

- powered vehicle replaced and show that the diesel vehicle was retired from the fleet within 6 months of the date that the gasoline

- powered vehicle was added t o 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 ig nition engine fleets in title 13, CCR, section 2775.1 if the gasoline

- powered vehicle that replaces a diesel vehicle were excluded from the large spark ignition average. 4. The owner must demonstrate the gasoline

- powered vehicle is certified to a

NOx stand ard less than or equal to the Tier 1 NOx 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 vehic le 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) and 2449.2(a)(1), fleet owners may opt to include annual hours of operation for all engines in the fleet on the compliance date in the calculation as follows:

NOx Index = 1.18 times [SUM 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 date 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 for23 each engine in fleet on compliance date since the previous year’s compli ance date)]

Diesel PM Index = 1.18 times [SUM of (Max Hp for each 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 date 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 hours 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 regulation being certified by the Secretary of

State. Fleets must meet the following idling limits. (A) Idling Limit

- No vehicle or engines subject to this re gulation may idle for more than 5 consecutive minutes. Idling of a vehicle that is owned by a rental company is the responsibility of the renter or lessee, and the rental
agreement should shall so indicate. The idling limit does not apply to: 1. idling wh en queuing, 2. idling to verify that the vehicle 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 machine system to operating temperature, and 6. idling necessary to ensure safe operation of the vehicle. (B) Written Idling Policy

- As of March 1, 2009, medium 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 Executive Officer for a waiver to allow additional idling in excess of 5 consecutive minutes. The Executive 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 meet th e medium or large fleet requirements, respectively, on the reporting date two years subsequent to the year they became a medium or large fleet. (B) Large fleets that become medium fleets may meet either the medium or large fleet requirements on the next reporting date. Large fleets that become small24 fleets may meet either the small or large fleet requirements on the next reporting date. (C) Medium fleets that become small fleets may meet either the small or medium fleet requirements on the next reporting date. Medium 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 closest future next large fleet average requirement s in section s 2449.1(a) (1) and 2449.2(a)(1) immediately on purchasing vehicles subject to the regulation or bringing such vehicles into the State of California for the first

time on or after January 1, 2011 March 1, 2009 . New fleets do not have the option of complying with the BACT requirements in section s 2449.1 (b) (a)(2) and 2449.2(a)(2) when they enter the s S tate 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 requirements, or comply with the BACT requirements of section 2449.1(b) . For example, if a medium fleet enters the State of California on January 1, 2012, it must meet the January 1, 2014

, large fleet average requirements immediately upon entering the s S tate. However, the next applicable compliance date for this fleet is not until the first

med i um fleet compliance date of January 1, 201 7 , at which time, the fleet may fulfill the compliance requir ements by meeting either the fleet average requirements or the BACT requirements

. (B) New small fleets

– New small fleets must meet the fleet average requirements in section 2449.1 (a)(2) ( a)(1)(A)1. b

. for the closest future next small fleet compliance date immediately upon purchasing vehicles subject to the regulation or bringing such vehicles into the State of California for the first

time on or after January 1, 2011 . New small fleets do not have the option of complying with th e BACT requirements in section 2449. 1 (b) (a)(2) when they

enter the s S tate for the first time . For the next applicable compliance date that must be met, the new fleet can meet either the fleet average requirements, 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 adding vehicle requirements in section 2449(d)(6), immediately upon purchasing vehicles subject to the regulation or upon bringing such vehicle s into the State. New fleets must report vehicles subject to the regulation to ARB within 30 days of purchasing or bringing such vehicles into the State, in accordance with the requirements in section 2449(g).

**(5) (6)**  **Fleet Ownership Transferred** (A) New fleet owner

- If ownership of a n entire fleet a or fleet portion , which is complying and repo rting 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 portion was meeting the BACT requirements25 in lieu of the fleet average requirements before the transfer, 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 automatically and is not require d the fleet to begin meeting to meet the fleet average requirements in section s 2449.1(a) (1) and 2449.2(a)(1) or adding vehicle require ments in section 2449(d)(6) as new fleets are required to do

. If

a new fleet owner who did not own a fleet before acquire s a fleet or fleet portion that did not previously comply with the regulation, or acquires a fleet portion that is not complying and r eporting separately per section 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 the existing fleet and the acquired fleet s were in compliance with the individual fleet requirements. If existing fleets acquire portions of fleets a fleet or fleet portion or entire fleets that did not previ ously comply with the regulation, however, or they acquire a fleet portion

which is not complying and reporting separately per section 2449(c)(20), they must meet the requirements for adding vehicles in section 2449(d)(7) 2449(d)(6) when adding the entire fleet or fleet portion

. **(** C ) Existing BACT credits

– If ownership of a fleet or fleet portion , which is complying and report ing separately per section 2449 (c)(20)

, is transferred to

a new fleet owner and the transferred fleet 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 portion continues to comply and report separately

. T he

new fleet owner may keep the acquired fleet separate from the rest of the

vehicles owned for the purposes of maintaining credits even if the vehicles are under common ownership or control. If the new fleet owner combines the acquired fleet or fleet portion for compliance and reporting purposes with the rest of his vehicles, the acquired fleet or fleet portion shall maintain only the

credits accumulated from retrofits and repower s, and all other BACT credits shall expire immediately

.

**(6) (7)**  **Adding Vehicles**

– With th e exception noted below for fleets owned by lessors of vehicles, T t he requirements in (A) to through (C) below apply to all

fleets . Fleets owned by lessors are not subject to (A) through (C) for , except they do not apply to vehicles owned by a the lessor and returned to the lessor fleet at

the end of a lease , during which 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 fleet’s fleet a verage demonstration on subsequent compliance dates. For the purposes of this requirement, a vehicle may be assumed to meet the engine emission standard tier in effect for the model year of the engine

. (A) Beginning March 1, 2009 Ban on adding Tier 0s

– Ef fective upon the United States Environmental Protection Agency (U.S. EPA) issuing authorization for this regulation, Beginning March 1, 2009 a fleet may not add26 a vehicle with a Tier 0 engine to its fleet. The engine tier must be Tier 1 or higher. (B) Ban on adding Tier 1s Tier 2 or higher

– Beginning March 1, 2011, 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 ) number that ARB assigned to the vehicle prior to March 1, 2011 , and both the fleet selling and the fleet purchasing the vehicle with the Tier 1 engine must have reported to ARB by March 1, 2011, or have entered the s S tate of California for the first

time after M arch 1, 2011. Beginning March 1, 2011, fleets may not add a

vehicle with a Tier 1 vehicle that did not have an EIN assigned by ARB prior to March 1, 2011. 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 must be Tier 2 or higher. (C) Ban on adding Tier 2s Tier 3 or higher

– Beginning January 1, 2018 , for large and medium fleets, and January 1, 2023 , for small fleets, a fleet may not add a vehicle with a Tier 2 engine to its fleet. The engine 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 lar ge fleets, between March 1, 2013 and March 1, 2020 for medium 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 vehicle to its fleet, the fleet must demonstrate that the fleet still meets the fleet average target rates within three months of adding the vehicle. That is, fleets may not add vehicles

that cause them t o exceed the most recent fleet average target rates. The added vehicle also must be included in the fleet average demonstration required in sections 2449.1(a) and 2449.2(a) on the next compliance date. 2. Fleets Not Meeting the Fleet Average Tar gets

- If a fleet did not meet the fleet average requirements in sections 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 emissions above the fleet average target

r ate, as described below. a. Large and Medium Fleets

- A large or medium fleet that met the BACT requirements in sections 2449.1(a)(2) and 2449.2(a)(2) instead of the fleet average requirements in sections 2449.1(a)(1) and 2449.2(a)(1)

on the most recent c ompliance date may not add a vehicle to its fleet unless all of the following conditions are met: i. The engine is Tier 2 or higher. (For the purposes of this requirement, a vehicle may be assumed to meet the new engine emission

standard tier in effect fo r the model year unless the engine is a flexibility engine certified January 1, 2007 or later to the implementation flexibility standards at title 13 CCR, section27 2423(d), in which case the emission standard tier to which the engine is certified should be used.). ii. The vehicle engine’s NOx Emission Factor (after 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 higher. (For the purposes of this requirement, a vehicle may be assumed to meet the new engine emission standard tier in effect for the model year unless the engine is a flexibility engine certified January 1, 2007 or later to the implementation flexibili ty 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, unless the vehicle is equipped with an engine meeting the Tier 3, Tier 4 interim, or Tier 4 final emission standards.

**(7) (8)**  **VD ECS 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 manufacturer’s specifications prior to VDECS installation. (E) The VDECS label will be visible 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 ensu re 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 not damaged , the fleet may keep the BACT credit earned under section 2449.1(b)

for the installation of the removed VDECS. I f the fleet could not meet an applicable fleet average target for the most recent compliance date without

the removed VDECS, the fl eet owner must bring the fleet back into compliance within 90 days of the removal of the VDECS

.28 (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 installation of the removed VDECS. If the fleet could not meet an applicable compliance requirements under section 2449.1 for the

most recent complia nce 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 2024 March 1, 2020

, for large and medium fleets, and on January 1, 2028 202 9 , for small fleets, if a large or

medium fleet does not meet the applicable NOx fleet average target 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 cred it earned in previous

years can no t be used to meet compliance after the final target date

. Vehicles

exe mpt from BACT turnover or having VDECS installed under section s
2449.1 (b)( 2 ) and ( 3 ) 2449.1 (a)(2)(A)4. and 2449.1(a)(2)(A)5. , respectively, 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 highest level VDECS. The vehicles must be retrofit at the annual 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 accrued carryover PM retrofit credits. The following engines and vehicles are exempt 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 wh ich 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 came new with the vehicle, 4. Engines already retrofit with a Level 2 or 3 VDECS that was the highest level VDECS available at time of installation, and 5. Vehicles in large and medium fleets that have not yet met the NOx fleet average target rate for the final target date in section 2449.1(a)(1).

(e) Special Provisions/Compliance Extensions

**(1) VDECS Failure**

- In the event of a failure or damage of a VDECS, the following conditions apply:29 (A) Failure or Damage During the Warranty Period. If a VDECS fails or is damaged within its warranty period and it cannot be repaired, the fleet owner must replace it with the same level VDECS or higher for the vehicle within 90 days of the failure. (B) Failure or Damage Outside the Warranty Period. 1. Before Final Target Date

- If a VDECS fails or is damag ed outside of its warranty period before January 1, 2023 2024 March 1, 2021 for large and medium fleets, or before January 1, 2028 2029 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 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. 2. After Final Target Date

- If a VDECS fails or is damaged outside of its warranty period on or after January 1, 2023 2024 March 1, 2021 for large and medium fleets, or on or after January 1, 2028 2029 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 fl eet average 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 would be a Level 2 fuel verified as a diesel emission

control strategy, and implementation of this VDECS would require installation of a dedicated storage tank, then the fleet owner may 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 applicable fleet average requirement and has to

discontinue use of the fuel due t o 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 ap plicable fleet average requirement. The Executive Officer 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 may not apply for this waiver.

**(3) Exemption for Vehicles Used for Emergency Operations** 

- Vehicles used solely for emergency operations are exempt from the performance requirements in sections 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 s ections 2449(f) and (g). Vehicles used solely for emergency operations need not be included when calculating fleet average indices or target rates, when determining fleet size, or when30 calculating the required hp horsepower for the BACT turnover and retrofit requirements in section s 2449.1 (b) (a)(2) and 2449.2(a)(2)

.

Owners of vehicles brought into California for emergency operations that last longer than three months must report such entry to ARB and request an equipment identification num ber within three months of entering the s S tate. 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 operations 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**

**-** Ded icated snow removal

vehicles are exempt from the performance requirements in sections 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). Dedicated snow removal

vehicles need not be included when calculating fleet average indices or target rates, when determining fleet size, or when calculating the required hp horsepower for the BACT turnover and retrofit requirements in section s
2449.1 (b) (a)(2) and 2449.2(a)(2)

. Publicly owned vehicles used exclusively to support snow removal operations (such as a loader without a special snow removal attachment) , but which do not meet the dedicated snow removal vehicle

definition (such as a loader without a special snow removal a ttachment) , are exempt from the performance requirements in sections 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 S trategies** 

- If a fleet owner wishes to use an experimental, or non

- verified, diesel emission control strategy, the owner must first obtain approval from the Executive Officer for a compliance extension. To obtain approval, the owner must demonstrate eithe r 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 documentati on of this use in records as specified by the Executive Officer. The application must include emissions data and detailed control technology description demonstrating the experimental control achieves at least a Level 2 diesel PM emission

reduction. If t he application demonstrates that the strategy achieves at least 50 percent reductions in diesel PM, it may be treated like a Level 2 VDECS. If the application demonstrates that the strategy achieves at least 85 percent reductions in diesel PM, it may be t reated like a Level 3 VDECS. If the application demonstrates that the strategy achieves a NOx reduction over 15%, the NOx reduction may be counted.31 Upon approval by the Executive Officer, each vehicle engine retrofit with the experimental strat egy will be allowed to operate for a specified time period necessary to make a determination that the experimental strategy can achieve the projected emissions reductions. The vehicle equipped with the experimental strategy will be considered to be in com pliance during the specified time period. A fleet owner who participates in an experimental diesel emission control program approved by the Executive Officer may retain carryover retrofit

PM BACT credits or carryover turnover credits actually accumulated during the experiment, regardless of whether the experiment achieved the projected emissions reductions or whether the strategy is eventually verified. If a strategy installed in an experimental diesel emission control program approved by the

Executive Of ficer fails to be verified or is removed, it will no longer count in the fleet’s fleet average calculations. The fleet owner must bring the fleet into compliance prior to the expiration of the experimental diesel emission control strategy extension.

**(6) Compliance Extension for Equipment 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 equ ipment 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 vehicle was purchased, or the fleet owner and seller had entered into contractual agreement for the purchase, at least two four 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 purchase order or signed contract for the sale, including engine specifications for each applic able piece of equipment, must be maintained by the fleet owner and provided 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 in staller that there is a delay, such that the equipment or vehicle will 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 L ow

- use vehicles are exempt from the performance requirements in sections 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 sections 2449(f) and (g). Permanent and year

- by

- year l L ow

- use vehicles need not be included when calculating fleet average indices or target rates, when determining fleet size, or32 when calculating the required hp horsepower for the BACT turnover and retrofit requirements in section s 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 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 example, a formerly designated permanent low

- use engine that exceeds 100 200 hours per year between January March 1, 2013 2015 and December 31, 2015 February 28, 2014 must be included in the fleet average indices and target rates reported in 2014 2016 , and must also meet the adding vehicle requirements for that year

. Vehicles that formerly met the year

- by

- year low

- use vehicle definition,

but whose use increases to 200 hours per year or greater do not have to meet the adding vehicles requirements in section 2449(d)( 6 ), but must be included in the fleet average calculation s 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 should shall not be considered the highest level VDECS available because (A) it cannot be safely installed or operated in a particular vehicle application, or (B) its use would make compliance

w ith federal or state requirements 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 manufacturer states that there is no safe or appropriate meth od of mounting its VDECS 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 federal or state agency (i.e., the federal or state agency that promulgates safety requirements) that compliance with the requirements of this regulation would make compliance with the federal and state safety or health requirements technologically infeasible . In the absence of such a declaration by the VDECS manufacturer or official findings of a responsible federal or state agency, the requesting party shall provide other documentation to support its claims. Documentation must include published reports and other findings of federal, state or local government agencies, indep endent testing laboratories, engine or equipment manufacturers, or other equally reliable sources. The request will only be approved if the requesting party has made a thorough effort to find a safe method for 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 information that he or she

wishes to consider and shall make his or her determination based upon the totality of the evidence. Upon finding that a VDECS cannot be installed without violating the safety standards prescribed under federal or state requirements for safety or health, the Executive Officer shall is sue a determination that there is no highest level VDECS available. The Executive Officer shall inform the requesting party, in writing, of his or her determination, within 60 days of receipt of the request. Parties may appeal the Executive Officer’s det ermination as described33 in (A) and (B) below. During the appeal process described in (A) and (B) below, the requesting party may request the administrative law judge to stay compliance until a final decision is issued. If the stay is granted and the Exec utive Officer denies the requesting party’s request, the requesting party has six months from the date of the Executive Officer’s final written decision to bring his or her fleet back into compliance. (A) Appeals

– Hearing Procedures

- 1. Any party whose request has been denied may request a hearing for the Executive Officer to reconsider the action taken by sending a request in writing to the Executive Officer. A request for hearing shall include, at a minimum, the following:

a. N n ame of the requesting party;

b. C c opy of the Executive Officer’s written notification of denial;

c. A a concise statement of the issues to be raised, with supporting facts, setting forth the basis for challenging the denial (conclusory allegations will not suffice);

d

. A a brief summary of evidence in support of the statement of facts required in c. above; and

e. T t he signature of an authorized person requesting the hearing

. 2. A request for a hearing shall be filed within 30 days from the date of

issuance of the notice 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 AR B, but may not be any employee who was involved with the denial at issue. In a request for reconsideration, the hearing officer, after reviewing the request for hearing and supporting documentation provided under paragraph 1. above, shall grant the reques t for a hearing if he or she finds that the request raises a genuine and substantial question of law or fact.

4. If a hearing is granted, the hearing officer shall schedule and hold, as soon as practicable, a hearing at a time 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. T t he determination issued by the Executive Officer which is the subject of the request for hearing;

b. T t he request fo r hearing and the supporting documents that are submitted with it;

c. A a ll 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. C c orrespondence and other documents material to the hearing.

6. The hearing file shall be available for inspection by the applicant at the office of the hearing officer.34 7. An applicant may appear in person or be represented by counsel or by any other duly

- authorized representative.

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 given pr obative effect only if it is the kind of evidence upon which reasonable persons are accustomed to relying in the conduct of serious affairs. No action shall be overturned based solely on hearsay evidence, unless 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 upon stipulation by the parties.

11. The hearing shall be recorded either electronically or by a certified shorthand reporter.

12. The hearing office r shall consider the totality of the circumstances of the denial, including but not limited to, credibility of witnesses, authenticity and reliability of documents, and qualifications of experts. The hearing officer may also consider relevant past conduct 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, including proposed finding as well as a copy of any material submitted by the hearing participants as part of that hearing and relied on by the hearing officer, to the Executive Officer. The hearing office r may recommend to the Executive Officer any of the following:

a. U u phold the denial as issued;

b. M m odify the denial; or

c. O o verturn the denial in its entirety.

15. The Executive Officer shall render a final written decision within 60 working d ays of the last day of hearing. The Executive Officer may do any of the following:

a. A a dopt the hearing officer’s proposed decision;

b. M m odify the hearing officer’s proposed decision; or

c. R r ender a decision without regard to the hearing officer’s pro posed

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 written submission. In such case the
requestor must s ubmit a written explanation of the basis for the appeal and provide supporting documents within 20 days of making the request. Subsequent to such a submission the following shall transpire:35 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 requestor’s submission;
2. The applicant may submit one rebuttal statement which may include supporting information, as attachment(s), but limite d to the issues previously raised;
3. If the applicant submits a rebuttal, ARB staff may submit one rebuttal statement which may include 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 sec tion 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. The Executive Officer may do any of the following:

a. A a dopt the hearing officer’s proposed decision;

b. M m odify the hearing officer’s proposed decision; or

c. R r ender a decision without regard to the hearing officer’s proposed

decision.

**(9) Compliance Flexibility for Delays in Availability of Tier 3 or Tier 4 Vehicles**

If the Executive Officer finds that th ere is a delay in availability of vehicles with engines meeting the Tier 3 or Tier 4 interim 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 sufficien t numbers or in a sufficient range of makes, models, and sizes, then the Executive Officer may grant an extension to the fleet from the requirements in section s 2449.1 (a)(1) , 2449.2(a)(1), and 2449.1(a)(2)

. and 2449.2(a)(2). If such a delay affects a grou p of fleets, the Executive Officer may issue an extension to all fleets with similar characteristics. Any such delay must be documented based on verifiable information from the fleet regarding its vehicle needs and/or verifiable information from the equip ment manufacturer, engine manufacturer, distributor, and/or dealer regarding the unavailability of appropriate vehicles with Tier 3 or Tier 4 interim or final engines.

**(10) Exemption for Vehicles Awaiting Sale**

- Vehicles in the possession of

deal ers, financing companies, or other entities 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 p urposes are exempt from all requirements in sections 2449

, 2449.1, and 2449.2 , and 2449.3

.36 **(11) Exemption for Vehicle Used Over Half the Time for Agriculture**

- A vehicle that is used by its owner for agricultural operations for over half of its annual operating hours but that is not used exclusively for agricultural operations is exempt from the performance requirements in section 2449(d), and 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 used 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 agr icultural operations.

**(12) Exemption for Vehicles Used Solely on San Nicolas or San Clemente**

**Islands**

- Vehicles used solely on San Nicolas or San Clemente Islands are exempt from all requirements in section 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 training program are exempt from the performance requirements in sections 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).

**(14) Two**

**- Engine**  **Vehicles Cranes** 

– Both engines in a two

- engine cran e are subject to this regulation. For purposes of the rounding provisions in section

2449.1 (b)( 5 ) (a)(2)( a A ) 7 8

., if a two

- engine vehicle is subject to this regulation,

under section 2449(b), neither engine in the two

- engine vehicle crane is required

to be turned over until the hp horsepower required to be turned over under

section 2449.1 (b) (a)(2)(A) 1. is at least half the sum of the max hp maximum

power of the primary and auxiliary secondary engine in the two

- engine

vehicle crane

.

**(15) On** 

**- road Registered Vehicles with Off** 

**- road Engines** 

– If a workover rig or

other on

- road registered vehicle subject to this regulation with an off

- road engine is repowered and will be registered and driven on

- road, it must be repowered

with an on

- road certif ied engine of the same 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 regulation. For the purposes of the rounding provisions in sectio n 2449.1 (a)(2) (a)7 ( A )

. 8

. , neither engine in the two

- engine water well drilling rig is required to be turned over until the horsepower required to be turned over under section 2449.1(a )(2)(A) 1. is at least half the sum of the maximum power of the primary and secondary engine in the two

- engine water well drilling rig.37 (16) (17) **F leets with 500 hp or less** 

– Fleets with 500 hp or less total max hp maximum power may meet the optional compliance schedule listed below in

Table 1 instead of the small fleet requirements in 2449.1 (a)(2) (a)(1)(A)1

. b. and

2449.1 (b) (a)(2)(A)1

. c . This percent of engine hp must be met or exceeded

, and the rounding provisions in section 24 49.1 (b)( 5 ) ( a)(2)( A )8 do not apply. For compliance with this section, all vehicles in the fleet must be included; no vehicles qualify for the exemptions listed in section 2449(e)

.

Table 1

– Op tional Compliance Schedule for Fleets with 500 HP or Less

Compliance Date: January March 1

of Year Percent of Fleet (by hp horsepower ) Which Must Have a Tier 2 or Higher Engine

201 9 25

202 2 50

202 6 75

202 9 100

Fleets with 500 hp or less may choose to comply with either the above optional compliance schedule or the small fleet requirements

. If the fleet alternates from the BACT schedule to the optional 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 optional compliance schedule above in 2025 must meet the 2022 requirements of the optional compliance schedule immediately upon switching to the optional compliance schedule . A fleet switching to the fleet average or BACT requirements from the optional compliance schedule must begin meeting the fleet average or BACT requirements for small fleets 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 re quirements 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 p urchase of a replacement vehicle, repower, or a

retrofit with public funds s hall be counted toward th e fleet average or BACT requirements in accordance with funding program guidelines applicable to the particular source of public funds used for the purchas e. This may in some cases limit credit to single rather than double credit.

(f) Labeling

–

All vehicles with engines subject to the regulation must be labeled with an ARB

- issued equipment identification number (EIN). Electric and alternative fuel veh icles, stationary or portable systems, and gasoline

- powered vehicles used to replace diesel vehicles under section 2449(d)(1) (C) must also be labeled with an ARB

- issued EIN. ARB will issue unique EIN to the fleet owner for each vehicle subject to the regu lation in response to the initial reporting described in section 2449(g)(1) and, for vehicles added38 in the 30 days before the annual reporting date, the annual reporting described in section 2449 (g)(2). Vehicles with two engines 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 owners of vehicles subject to the regulation must comply with the following labeling requirements.

**(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 s S tate, 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 the purchase using forms approved by the

Executive Officer for submitta l of required reporting information. If the reporting date under section 2449(g)(2) occurs before 30 days after purchase, the annual reporting may serve as the application for an EIN.

Applications for an equipment identification number should sh all be submitted electronically per the guidelines approved by the Executive 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

- U se 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 permanently 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 background , unless the vehicle is part of a

C c aptive A a ttainment A a rea F f leet, in which case the EIN shall be white on a green background

. (B) The EIN shall be located in clear view on the right (starboard) both side s of the outside of the vehicle 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 inches (7.6 centimeters) in height and 1.5 inches (3.8 centimete rs) in width. (D) The EIN shall be maintained in a manner that retains its legibility for the

entire life of the 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 by January 1, 2013. (F) Vehicles that are part of a C c aptive A a ttainment A a r ea 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 by39 one displaying white on a green background , on each side of the vehicle,

bef ore by January 1, 2013.

(g) Reporting

–

Reporting is required for each and every fleet. Large and medium fleets may report separately for different divisions or subsidiaries of a given company or agency. Fleet owners may submit reporting information us ing forms (paper or electronic) approved by

the Executive Officer.

**(1) Initial reporting**

– All fleet owners must submit the information in section 2449(g)(1)(A) through ( H G ) to ARB by their initial reporting date. In the initial reporting, fleet owners must report information regarding each vehicle subject to this regulation that was in their fleet on March 1, 2009. Systems or non

- diesel fueled vehicles that are used in pl ace of a vehicle that would be subject to this regulation must also be reported. The initial reporting date for large fleets is April 1, 2009. The initial reporting 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 initial reporting date for two

- engine

vehicles water well drilling rigs is March 1, 2012 April 1, 2011

. Reports must include the following information: (A) Fleet Owner

– 1. Fleet owne r’s name; 2. Corporate parent name (if applicable); 3. Corporate parent taxpayer identification number (if applicable); 4. Company taxpayer identification number;
5. Address; 6. Responsible person name; 7. Responsible person title; 8. Contact name;

9. Cont act 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 coun ty;

13. Whether the fleet owner is a non

- profit training center; 14. Whether the fleet has an idling policy documented and available to employees; 15. Whether the fleet is using a fuel

- based strategy as an emissions control
strategy;

16

. Whether t he fleet is a c C aptive a A ttainment a A rea f F leet. (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;40 4. Vehicle model year; 5. Vehicle serial number; (i.e., for workover rigs and on

- road two

- engine

cranes vehicles

, vehicle identification number);

6. Whether the vehicle is a permanent or year

- by

- year low

- use vehicle;

7. If the vehicle is a permanent or ye ar

- by

- year low

- use vehicle, whether the vehicle was operated outside of California during the previous compliance

year; 8. Whether the vehicle is a specialty vehicle; 9. Whether the vehicle is a vehicle used solely for emergency operations;

10. Whether the vehicle is a dedicated snow removal vehicle; 11. Whether the vehicle is used for agricultural operations for over half of its annual operating hours; 12. Whether the vehicle is an electric vehicle that replaced a diesel vehicle;

13. Whether the vehicle has had a VDECS installed, or been retrofit, repowered, or replaced with Surplus 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 VDECS installed, or been retrofit, repowered, or replaced with Carl Moyer program funding;

15. Whether the vehicle has had a VDECS installed been retrofit through a demonstration program, and

- if so

- which program; 16. EIN if it has already been assigned

. ; 17. License plate nu mber, if vehicle has a license plate

. ; 18. Whether the vehicle has a VDECS safety exemption per section 2449(e)(8);

19. Whether the vehicle is exempt from the BACT requirements per section 2449.1(b)( 2 )( E ) for the early installation of a highest level PM V DECS. (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 manufacture r; 2. Engine model; 3. Engine family (if any); 4. Engine serial number; 5. Engine model year; 6. Engine max hp maximum 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 certified to on

- road standards, or an engine certified by ARB or U.S. Environmental Protection Agency to a lower emission standard than shown in Appendix A, the emission standard to which the engine is certified and the certification Executive Order or certificate number;

11 10

. Whether the engine has been rebuilt to a more stringent emissions configuration.41 (D) Verified Diesel Emission Control Strategies

- For each VDECS that is installed on an engin e listed per section 2449(g)(1)(C) report the following

information.

1. VDECS m M anufacturer;

2. VDECS f F amily; 3. Verification level; 4. Verified percent NOx reduction (if any);
5. Date installed;

6. VDECS s S erial n N umber. (E) Non

- Diesel Vehicle Used in Place of a Diesel Vehicle

- For each electric, alternative fueled, or gasoline fueled vehicle, report the information listed in 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. as well as 1. Date purchased; 2. If the vehicle replaced a diesel vehicle in the fleet, the hp horsepower 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 systems that are used in place of a diesel vehicle,
report the following information: 1. Description of the system; 2. Type and number of vehicles that would otherwise be used;

3. Hp Horsepower 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. thr ough 2449(g)(1)(C)6. for each vehicle for which credit is claimed. As appropriate, the following information must also be reported: 1. For each vehicle within the fleet that 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 that was retrofit with the had the highest

level PM VDECS installed available at the 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 for retirement or replacement of any

vehicles per under section 2449.1 (b)(1 4 ) (a)(2)(A)(2)

. a.ii., or
2449.1 (b)(1 6 ) (a)(2)(A) (2)

. a. i v. or 2449.2(a)(2)(A)(2)a. i v. must report

inform ation 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) 5 . and sections 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 reduced 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 credit, for the twelve42 month period January 1, 2007, to December 31, 2007 as well as the twelve month period March 1, 2009, to February 28, 2010. Fleets that do

no t have hourly reporting records of each vehicle in the fleet must submit to the Executive Officer copies of information that is verifiable and substantively demonstrates a reduction in fleet activity from July 1, 2007,
to March 1, 2010. (H) Equipment Purc hased, Repowered, Retrofitted, or Otherwise Funded or Partially Funded Using Public Funds

- For owners of equipment or vehicles that were purchased, repowered or retrofitted using public funds and where funding program guidelines include criteria that limi t funded projects from receiving regulatory benefit or credit, in addition to the information provided in sections 2449(g)(1)(A) through (D), the fleet 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 limitations for receiving regulatory benefit or credits for the funded equipment

.

**(2) Annual Reporting and Compliance Certification**  **Responsi ble Official**  **Affirmation of Reporting**

– All fleet owners must review and update the information submitted under section 2449(g)(1) annually, and submit the information in section 2449(g)(2)(A) through (C) to ARB by the reporting date of each subsequent rep orting year. The large fleet reporting date for all fleets is

March 1 April 1, the medium fleet reporting 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 March 1 of the year prior to the reporting year (for example, 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 201 0 to 2021 2012 to 202 3 . Medium fleets must report annually each year 2012 to 2021 2016 to 202 3 . Small fleets must report annually each year from 2014 to 2026 2018 to 202 8 . Any fleet that fails to meet the fleet average target rate for the final target dat e in section 2449.1(a) (1) or 2449.2(a)(1) must continue to report annually 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 unti l the March 1 after all such retrofits are complete. Any fleet that operates permanent designated or year

- by

- year low

- use vehicles must continue to report annually for

each permanent or year

- by

- year low

- use vehicle for as long as the fleet owns or operates the vehicle. Fleets may use forms (paper or electronic) approved by the Executive Officer for submittal of the required reporting information. (A) Compliance Certification Responsible Official Aff irmation of Reporting

– Each year that annual reporting is required, a fleet shall submit to ARB A a n affirmation certification signed by a responsible official or a designee thereof that the information reported is accurate and that the fleet is in complia nce with the regulation. The certification affirmation must be submitted on a form43 (paper or electronic) approved by the Executive Officer. If a designee signs

the compliance certification affirmation of reporting , a written statement signed by the respo nsible official designating the designee must be attached

to the compliance certification affirmation of reporting and submitted to ARB. This written statement designating the designee must only be attached the first time a designee signs the affirmation of reporting. If a new designee is appointed at a later time, another written statement signed by the responsible official designating a new designee must be submitted. If the fleet is a

C c aptive A a ttainment A a rea F f leet, 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 responsible official or designee is the same

for sever al fleets or fleet portions, the responsible official or designee has the opti on of submitting a single affirmation for these fleets, as long as the single

affirmation a ppropriately identifies each fleet covered by the affirmation. (B) Changes Since Last Reporting

- If any information reported per section 2449(g)(1) has changed sin ce either the initial or last annual report filed with ARB, the fleet owner must, in its next annual report identify such changes. Such changes include vehicles removed from the fleet, vehicles added to the fleet through purchase or by bringing into Calif ornia, vehicles newly designated as permanent or year

- by

- year low

- use or specialty vehicles,

repowers, and VDECS installed retrofits , and VDECS removed

. If there are no changes, the fleet shall indicate that there have been no changes since the last repor t. (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 readings, 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 intend to designate as year

- by

- year low

use, report two engine hou r meter readings, 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 prior year , and the dates of reading. If using the three

- year rolling average definition of year

- by

- year low

- use, report two ho ur meter readings, one from 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 vehi cles, report one engine hour meter meeting reading from on or before January 1 of the current year. For each year thereafter, report the engine hour meter meeting reading from on or after December 31 of the prior year

. Permanent and year

- by

- year l L ow

- 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 submi t a log that contains the following

information.44 a. Each date the vehicle entered California and the hour meter reading
upon entry; b. Each date the vehicle exited California and the hour meter reading upon exit.

2. 3. For vehicles that are used in agricult ural operations, the fleet owner shall report two engine hour meter readings, 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 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 ( H G ) to ARB for vehicles 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 must notify ARB within 30 days from the date the vehicle was sold. If the reporting date under section 2449(g)(2) occurs withi n 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 section 2449(h) below, and provide them to an agent or employee of the ARB within five business days upon request. Records must be kep t
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 doc umentation.

**(2) Vehicles Not Yet Labeled**

- For newly purchased or acquired vehicles or vehicles recently brought into the s S tate that have not yet been labeled per section 2449(f)(2), records must be kept of the vehicle purchase date or the date

the vehicle entered the s S tate.

**(3) Engines Rebuilt to a More Stringent 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. For a fleet to claim credit for rebuild to a more stringent emissions configuration of a Tier 1 engine rated at or above 37 kW that is exempt from the requirements in Title 40, CFR, Part 89.130 and title45 13, CCR, section 2423(l), the Tier 1 engine must be rebuilt in accordance with the rebuild practices of those sections and the fleet must kee p the records that would have been required if the engine were not exempt from those requirements. Records must include the following information: (A) The name of the company that performed the rebuild, address, contact name, and contact phone number for that company; (B) An invoice, or proof of purchase of the engine rebuild; (C) The date(s) the engine upgrade was performed; (D) All records required under Title 40, CFR, Part 1068.120 or, for engines exempt from Title 40, CFR, Part 1068.120, the records 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), the 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 removed 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 provision in section 2449(e)(6), proof of purchase, such as a purchase order or signed contract for the sale, including engine specifications for each applicable 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 idling in excess of 5 consecutive minutes; (B) Upon discontinuation of a fuel verified as a d D iesel e E mission c C ontrol

s S trategy, 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 should shall not be considered the highest level VDECS available due to safety concerns; (D) A pproval to use the max hp maximum power of a diesel vehicle that serves the same function as an electric vehicle; (E) Approval of an alternative fuel vehicle NOx emission standard; (F) Approval of a vehicle designation as a specialty vehicle; (G) Approval of an d experimental diesel PM control strategy; (H) Approval to grant an extension to the fleet from the requirements 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);46 (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 in 2449(g)(1)(G)4. A fleet that submits non

- vehicle specific data claiming credit for reduced fleet activity, per sections 2449.1(a)(2)(A)(2)a.v. or 2449.2(a)(2)(A)(2)a.iv., must keep a record o f 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, per under sections 2449.1 (b)(1 4 ) (a)(2)(A)2.a.ii. or 2449.1 (b)(1 6 ) (a)(2)(A) (2)

. a. i v. or 2449.2(a)(2)(A)(2)a. i v

. shall maintain records substantiating the fleet’s claim of previous ownership for those vehicles.

**(10) (**  10 9

**) Record Retention**

– Each fleet owner shall maintain the records for each vehicle subject to the regulation 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

per under section 2449(g)(1)(B), engine data per under section 2449(g)(1)(C), and

VDECS data per under sect ion 2449(g)(1)(D) to the buyer. If fleet ownership is transferred, the seller shall convey the fleet records including fleet data per under sections 2449(g)(1)(A) through ( G H ) to the buyer. Any person selling a vehicle with an engine subject to this regul ation in California must maintain records of the disclosure of regulation applicability required by s S ection 2449(j) for three years

after the sale.

(i) Right of Entry

–

For the purpose of inspecting off

- road vehicles 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

clearance s) where off

- road vehicles are located or off

- road vehicle records are kept.

(j) Disclosure of Regulation Applicability

–

Any person selling a vehicle with an engine subject 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 Vehicle Regulation. It therefore could be subject to retrofit or accelerated turnove r requirements to reduce emissions of air pollutants. For more information, please visit the California Air Resources Board

website at http://www.arb.ca.gov/msprog/ordiesel/ordiesel.htm .”

(k) Penalties

–47 Any person who fails to comply with the performance requirements of this regulation, who fails to submit any information, report, or statement required by this regulation, or who knowingly submits any false statement or representation in any application, report, statement, or other document filed, maintained, or used for the purposes of compliance with this regulation may be subject to civil or criminal penalties under sections 39674,
39675, 42400, 42400.1, 42400.2, 42400.3.5, 42402, 4240 2.1, 42402.2, 42402.4, 42403, and 43016 of the Health and Safety Code. In assessing penalties, the Executive Officer will consider factors, including but not limited to the willfulness of the violation, the length of time of noncompliance, whether the fle et 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 affirma tion of reporting required by section 2449(g)(2) is received by ARB, if the report ing and affirmation indicates the fleet is in compliance with the requirements of the Regulation for In

- Use Off

- Road Diesel

- Fueled

Fleets in

- use off

- road diesel vehicle regulation , ARB will provide the fleet with a Certificate of Reported Compliance with the Regulation for In

- Use Off

- Road Diesel

Fueled Fleets In

- Use Off

- road Diesel Vehicle Regulation

. The certificate may be revoked if ARB subsequently discovers that the r eports submitted to ARB have material

errors or omissions.

(m) Severability

–

If any subsection, paragraph, subparagraph, sentence, clause, phrase, or portion of
section 2449, 2449.1, or 2449.2 , or 2449.3 of this regulation is, for any reason, held

inva lid, unconstitutional, or unenforceable by any court of competent jurisdiction, such portion shall be deemed as a separate, distinct, and independent provision, and such holding shall not affect the validity of the remaining portions 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, 41511, 42400, 42400.1, 42400.2, 42402.2, 43000,
43000.5, 43013, 43016 , 43018, and 43018.2, Health and Safety Code.48 Section 2449.1 NOx Performance Requirements

(a) Performance Requirements

Each fleet must meet the fleet average requirements in this section before by January

March 1 of each year or demonstrate that it met the best available control technology ( BACT ) requirements as described in section 2449.1 (b) (a)(2)

. There are differing

req uirements 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 different subsidiaries, divisions, or other organizational structures of a company or agency, the fleet portions may comply with the performance requirements separately and be reported separately. A fleet may have some fleet portions that meet the definition of captive attainment area flee t and some fleet portions that do not. However, the total maximum 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 portions must continue t o comply and report separately, and the fleet portions must meet the adding vehicle requirements in section 2449(d)(7) 2449(d)(6) just as if they were separate fleets.

Captive attainment area fleets, and f F leets owned by non

- profit training centers or lo w

population county local municipalities

, are subject to the small fleet requirements, even

if their total max hp maximum power exceeds 2,500 hp horsepower

. Captive attainment area fleets are not subject to the NOx performance requirements. Section 2449(d)(4) 2449(d)(3) describes requirements 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 fleet that is not a captive attainment area

fleet must demonstrate that its NOx F f leet A a verage I i ndex was less than or equal to the

calculated NOx F f leet A a verage T t arget R r ate.

The equation for calculating NOx F f leet A a verage T t arget R r ate is below:

NOx Fleet A a verage T t arget R r 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 hp Max Hp ) for all engines in fleet]

where the T t arget is the NOx target in g/bh p

- hr is shown in from Table s 3 and 4

below 1 . To find the T t arget for each engine, read the value for the appropriate row based on the compliance year and the appropriate column based on the engine’s max hp maximum power from Table 3 1 for medium and large fleets, and

Table 4 2 for small fleets

.49 The equation for calculating NOx F f leet A a verage I i ndex is below:

NOx F f leet A a verage I i ndex = [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 engines in fleet] divided by [SUM of ( max hp Max Hp ) for all engines in fleet]

where e mission f actor in g/bhp

- hr is shown 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 0.8 2

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 (Not Highest Level PM VDECS) (1 Minus (Verified Percent NOx Reduction Divided by 170))

NOx Reduction on ly 1 Minus (Verified Percent NOx Reduction Divided by 170)

(1) a. Fleet A a verage T t argets for L l arge and M m edium F f leets

- Table 3 1 shows the targets used to calculate the NOx F f leet A a verage T t arget R r ate for each compliance date for large and medium fleets. The Emission Factors are defined in Appendix A.50 Table 3 1

– Large and Medium Fleet NOx Targets for Each Max Hp Group For Use in Calculating NOx Fleet Average Target Rates [g/bhp

- hr]

Targets for each Max Hp Group
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 3.5 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

2 019 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) b. Fleet A a verage T t argets for S s mall F f leets

- Table 2 shows the targets

used to calculate the F f leet A a verage T t arget R r ate for each compliance date for

small fleets. The Emission Factors are defined in Appendix A.51 Table 4 2

– Small Fleet Targets for Each Max Hp Group For Use in Calculating Fleet Average Target Rates [g/bhp

- hr]

Targets for each Max Hp Group

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
201 9 5.8 6.5 7.1 6.4 6.2 5.9 6.1 7.2

20 20 5.6 6.2 6.7 6.0 5.8 5.5 5.6 6.8

20 21 5.3 5.8 6.2 5.5 5.3 5.1 5.2 6.5

202 2 5.0 5.4 5.5 4.9 4.7 4.5 4.6 6.0

202 3 4.7 5.0 4.8 4.3 4.1 4.0 4.0 5.5

202 4 4.4 4.6 4.1 3.7 3.5 3.4 3.4 5.0

202 5 4.1 4.2 3.4 3.1 2.9 2.8 2.9 4.5

202 6 3.8 3.8 2.7 2.5 2.3 2.2 2.3 4.0

202 7 3.5 3.4 2.0 1.9 1.7 1.7 1.7 3.5

202 8 3.3 3.0 1.4 1.3 1. 5 1.5 1.5 3.552 (b) (2) BACT Requirements

Each year, a each fleet must determine if it will be able to meet the fleet average requirements in section 2449.1(a) for the next January March 1 compliance date, and if

not, the following BACT requirement must be met. If a fleet does not meet the NOx

F f leet A a verage T t arget r R r ate 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** BACT Requirements for Fleets Not Meeting NOx Fleet Average **Target Rate**

– A fleet may meet the turnover BACT requirements by performing

turnover or installing VDECS as described in section 2449.1(b)(10) below .( as defined in section 2449(c)( 5 5 )

, or applying the highest level PM VDECS as defined in section 2449(c)( 5 8 )(A )

. Vehicles exempt from the performance requirements under section 2449(e) cannot be used to generate BACT credits. retiring a vehicle, designating a

vehicle as a low

- use vehicle, repowering a vehicle, rebuilding the engine to a more stringent emissions configuration, or applying a VDECS verified to achieve NOx

r eductions . If repowering a vehicle or rebuilding the engine to a more stringent emissions configuration, the new engine must be Tier 2 or higher and must be a higher tier than the engine replaced or rebuilt. The method for counting VDECS verified to

achi eve 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 f F leet a A verage

t T arget r R ate in section 2449.1(a) (1) , it must demonstrate 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 minimum BACT requirements specified for that compliance date. The minimum BACT requirements (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 or applied the highest level PM VDECS to the required percent of the total maximum power of the f leet that existed on December 31 January March 1 of the previous year since January March 1 of the previous year and on or before December 31 of the previous year

. For example, if a large fleet does not meet the January 1, 2014

, f leet a verage t arget r ate, the fleet must demonstrate that it

had accumulated enough BACT credit between January 1, 2013 and December
31, 2013 , to satisfy the BACT requirements for January 1, 2014. The BACT requirements for January 1, 2014

, for a large fleet equal s the BACT rate fo r that compliance date (4.8 percent for 2014 , as shown below in subsection (A) ) multipl ied by the fleet’s max hp as reported by the previous reporting date, March
1, 2013

.

A ny carryover turnover BACT credit previously accrued may be applied towards

the BACT requirements turnover required in a later year as specified in the

sections below

. The required BACT rate turnover percentages of fleet53 horsepower to turn over or apply the highest level PM VDECS to percents to

demonstrate on for each compliance date is are described below in (A) through (C). a. through c. e

. (A) a. Large fleets

– 1: i. 2014 : 4.8 percent

2: ii. 2015 to 2017 : 8 percent

3: iii. 2018 to 2023 : 10 percent (B) b. Medium fleets

– 1: i. 201 7: 8 percent

2: ii. 2018 to 2023 : 10 percent (C) c. Small fleets

– 201 9 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 fleets that met the NOx fleet average target in

2012 and for all medium fleets. d) 2014 and 2015 : 8 percent. e) 201 6 and later: 10 percent.

( 2 ) Exemptions fro m BACT for M edium and L arge F leets

– For medium and large fleets, a vehicle is exempt from the BACT requ irements 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 section (A) through (E) below. A

fleet that does not meet the fleet average target in section 2449.1(a)(1) must meet the BACT requirem ents with the vehicles that do not qualify for an exemption under either s ection 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 eith er 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 complianc e date, the vehicle is less than 10 years old from the date of

manufacture

. (B) The vehicle meets all of the following specialty vehicle criteria: 1. The fleet has turned over all other vehicles first, 2. No repower is available for the specialty 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, and54 4. The specialty vehicle has the highest level PM VDECS installed

. (C) The v ehicle had a Level 2 or 3 PM VDECS installed within the last six years and such VDECS was highest level PM VDECS at the time of the installation

. (D) The v ehicle ’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 Tier 4 final engine. (E) The vehicle has the highest level PM VDECS installed prior 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 installed the highest level PM VDECS on more than 15 percent of the fleet’s December 31, 2012, total hp , the fleet may apply th is exemption 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 threshold established in section (E)

above. 2. The highest level PM VDECS must remain on the vehicle in order to maintain this exemption. If a VDECS 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

fr om the BACT requirements 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 section (A) through (E) below. A fleet that doe s not meet the fleet

average target in section 2449.1(a)(2) must meet the BACT requirements with the vehicles that do not qualify for an exemption under either section 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 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, the vehicle is less than 10 years old from the date of

manufacture

. (B) The vehicle meets all of the specialty vehicle criteria described above in section 2449.1( b)( 2 )(B)

. (C) There is no highest level VDECS available for the vehicle’s engine as of 10 months prior to the compliance date (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 the safe operation of the vehicle as demonstrated 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 v ehicle has a Tier 4 interim or Tier 4 final engine

. (E) The vehicle’s engine has already been retrofitted with a Level 2 or 3 VDECS that was the highest level PM 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 qualif y for this exemption.55 ( 4 ) Order of BACT Requirements

- All Tier 0 and Tier 1 engines in a fleet, except those in vehicles that qualify for an exemption 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 fleet may, however, receive carryover BACT credit per section 2449.1(b)( 10 ) and 2449.1(b)(1 5 ) 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 provision 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 su bject to the BACT requirements, the next 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 through January 1, 2015 (i.e., the first turnover of or VDECS installations on Tier 2 or higher 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 f or an exemption under section 2449.1(b)( 2 ) have been turned over.

( 7 ) Delayed Requirements for Early Compliance

– Large fleets are exempt from the January 1, 2014 performance requirements 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 sum of: “Credit for Early Repowers and Rebuilds to More Stringent Emissions Standards” gained under 2449.1(b)(1 3 ) plus “Credit for Early Replacement ” gained under 2449 .1(b)(1 4 ) plus “Double

Credit for Early VDECS Installations” gained under 2449.1(b)(1 5 ) plus “Credit for Early Reduced Fleet HP ” gained under 2449.1(b)(1 6 ) plus BACT credit gained

for turnover from March 1, 2009, through February 28, 2010, that was not

acc ounted for under sections 2449.1(b)(1 6 ). If the sum of these credits exceeds (Total max hp of the fleet on March 1, 2009 multiplied by 0.08), then the fleet will not be required to meet either the January 1, 2014

, fleet average or the January
1, 2014

, BACT requirements. This provision shall not have the effect of reducing any credit that any fleet would otherwise have 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 f leet had BACT credits on March 1, 2010, in excess of 8 percent

of such fleet’s hp on March 1, 2009.

( 8 ) Accumulating C arryover BACT C redit

– Beginning on January 1, 2013 for large fleets, on January 1, 2016 for medium fleets, and on January 1, 2018 for56 small fleets, a fleet will accumulate carryover BACT credit each year it exceeds the BACT requirements specified in section 2449.1(b)(1). The amount of carryover BACT credit (in hp ) accumulated is equal to: (The amount of BACT credit earned in the calenda r 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 C arryover BACT C redit

– Except as provided in section 2449.1(b)(1 6 ), accumulated carryover BACT credit may be applied to meeting th e BACT requirements of section 2449.1(b)(1) in a later year. The amount of carryover BACT credit used to meet the BACT requirements 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

ca lendar year plus the amount of carryover BACT credit used must equal or exceed the minimum BACT requirements described in section 2449.1(b)(1).

( 10 ) BACT C redit E arned for T urnover, 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 fleets, BACT credit is earned as follows: (A) For turnover, as specified in section 2449(c)( 55), BACT credit (in hp ) equals: ( Max hp of the vehicle that 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 the 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 Reduction 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 and that is also the highest level PM VDECS, or for a VDECS verified to reduce NOx installed on an engine that also has a highest level PM VDECS that is verified separately, BACT credit (in hp ) equals : (Verified Percent NOx Reduction divided by 120 percent) multiplie d by ( Max hp of the vehicle to which the NOx VDECS was applied ). This credit is applied in addition to credit for installing the highest level PM

VDECS per section 2449.1(b )( 1 0 ) (B) above

.

(1 1 ) Excess PM VDECS Credits Used for Compliance with Off

- R oad and Truck

and Bus Regulations

- For the same fleet owner, excess PM VDECS credits granted in The Regula tion for In

- Use Off

- Road Diesel

- Fueled Fleets (Off

- R oad regulation) may be used in the Truck and Bus regulation (title 13, CCR section 2025) and exce ss PM VDECS credits granted in the Truck and Bus regulation may be used in the Off

- R oad regulation before January 1, 2017. Starting January 1, 2017, no credits may be transferred between the regulations.57 (A) Off

- Road generated credits used to comply with the Truck and Bus regulation

– Except for low

- use vehicles ( as defined in section s 2449(c)(3 9 )

and (6 3 )) and vehicles that are exempt under section 2449( e ) , vehicles subject to the Off

- Road regulation 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 large 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 that year, the excess BACT credit earned (i.e., the

amount of BACT credit earned above the 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 regu lation per section 2025 as follows: ( Excess PM VDECS credits to apply towards the Truck and Bus regu lation = [(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 (for example, if no veh icles are retrofitted with Level 3 devices 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 retired, sold, scrapped, or otherwise removed

from the California fleet.

If the equation above, before truncation, 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., the truncated amount) may be used as carryover BACT credit towards compliance with the Off

- Road regulation

, or may be accumulated to generate excess PM VDECS credits in future

years

. 2 . Early PM V DECS installations

– If a ny small, medium, or large fleet installs Level 3 PM VDECS by the deadlin es shown in section 2449.1(b)(1 5 ), the fleet has the option to either (1) accumulate double carryover credit to be used towards the BACT requirements of the O ff

R oad regulation (per section 2449.1(b)(1)), or (2) to apply single PM VDECS credit towards compliance with the Truck and Bus regulation.

3

. Compliance with the O ff

- R oad regulation

– Fleet owners that use

excess PM VDECS credits towards for compliance w ith the Truck and Bus regulation (as specified in section (1 1 )(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 with58 the excess Level 3 PM VDECS), and no BACT credit can be accrued that

can be used towards compliance with the Off

- R oad regulation for those VDECS. Once the excess PM VDECS credit can no longer be applied to the Truck and Bus regulation, the Level 3 PM VDECS that wer e used to generate the expired excess PM VDECS credit can be returned to the fleet average inde x calculations in section 2449 .1 (a). (B ) Excess Truck and Bus regulation c redit s used to comply with the Off

R oad regulation

– For each vehicle that generates a n excess PM VDECS

c redit per Truck and Bus regulation, a one

- time PM VDECS credit may be applied towards compliance with the Off

- R oad regulation, as follows: ( Excess PM VDECS credit that can be appl ied towards the Off

- R oad regulation (i.e., BACT credit

, in hp

, to apply towards the Off

- R oad regulation) = (Excess PM VDECS credits from the Truck and Bus regulation) multiplied by 300 )

.

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

another one

- time excess PM VDECS credit can be ap plied towards the Off

R oad regulation. Once it is determined

, under the Truck and Bus regulation,

that a vehicle can no longer generat e 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

- R oad regulation.

( 1 2 ) Beginning 2. Carryover turnover BACT C c redit

– a. Beginning

- All fleets may earn or and accumulate BACT credits for taking early action s in accordance with the following sections (13) (1 4 ) through (18) (1 9 )

below i through vi , 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 must submit to ARB and retain records as described in sections 2449(g) and (h).

(1 3 ) i. Credit for Early Repowers and Rebuilds to More Stringent Emissions

Standards

– Credit for early repowers can only 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 March
1, 2009

, will accumulate a carryover BACT turnover credit (in hp horsepower ) equal to: ( the max hp maximum power 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 before 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 by the following deadlines, will accumulate a59 carryover BAC T credit (in hp horsepower ) equal to the max hp maximum power of the vehicles repowered and the engines rebuilt in accordance with the preceding: (A) 1. Large fleets: January 1, 2013 (B) 2. Medium fleets: January 1, 2016 (C) 3. 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.

(1 4 ) ii. Credit for Early Replacement

– Fleets that have replaced their Tier 0

vehicles with Tier 1 or higher vehicles at an average rate greater than 8 percent

of total max hp maximum power per year between March 1, 2006 and March 1, 2009 will accumulate carryover turnover BACT credit (in hp horsepower ) equal to: [(Total max hp maximum power of Tier 0 vehicles retired betwee n March 1, 2006 and March 1, 2009) minus (Total max hp maximum power of Tier 0 vehicles
added between March 1, 2006 and March 1, 2009) minus ( 2 times the t T otal “Credit for Early Reduced Hp” credit for early retirement claimed under section (1 6 ) ( iii vi) below)] minus [(Total max hp maximum power of fleet on March 1, 2007 multiplied by times 0.08) plus (Total max hp maximum power of fleet on March 1,

2008 multiplied by times 0.08) plus (Total max hp maximum power of fleet on
March 1, 2009 multiplied by times 0.08)]. Tier 0 vehicles repowered with newer engines are counted under (1 3 ) ( i) above and shall not be counted under this

section (ii)

.

(1 5 ) iii. Double Credit for Early VDECS Installations NOx Retrofits

– If fleet s install a highest level PM VDECS or a VDECS verified to reduce NOx

, prior to January 1, 2013 for large fleets, January 1, 2016 for medium fleets, and January 1, 2018 for small fleets, by the deadlines shown below for the applicable fleet
size, f leets that have installed VDECS that h ave been verified as achieving NOx reductions on their vehicles before March 1, 2011 will accumulate carryover

turnover BACT credit (in horsepower) as follows : equal to:

2 times the multiplied by (Verified Percent NOx Reduction divided by 60 percent) multiplied by (M m aximum power on which VDECS verified to achieve NOx

reductions are installed before March 1, 201 1 ) by the applicable deadline : (A) 1. Large fleets: January 1, 2013 (B) 2. Medium fleets: January 1, 2016 (C) 3. Small fleets: January 1, 201 8 ( A) For a highest level PM VDECS, BACT credit (in hp ) equals: 2 multiplied by the ( Max hp of the vehicle to which the highest level PM VDECS was applied). PM VDECS that are not the highest level PM VDECS receive no BACT credit. (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 vehicle to which the NOx VDECS was applied ).60 (C) For a VDECS verified to reduce NOx and that is also the highest level PM VDECS, or for a VDECS verified to reduce NOx installed on an engine that also has a highest level PM VDECS that is verified separately, BACT credit (in hp ) equals: 2 multiplied by the (Ve rified 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 credit for installing the highest level PM

VDECS per section 2449.1(b)(1 5 ) (A) above

.

Fleets that install VDECS verified to reduce NOx by prior to the same deadlines

above will accumulate an additional carryover BACT credit (in horsepower) equal

to : ( 2 times the (Verified Percent NOx Reduction divided by 120 percent) multiplied by (Maximum power of the engines on which fleets install VDECS verified to reduce NOx) )

.

iv. Credit for Reduced Fleet Activity

– Fleets that demonstrate a reduction in fleet activity will accumulate carryover turnover credit (in horsepower). Fleet activity is defined as the sum of [(Total maximum power of the vehicle) times (Number of hours the vehicle was operated in the applicable 12 month period)] for each vehicle

in the fleet. 1. Carryover turnover credit generated from reduced activity may only be applied toward the March 1, 2010, or March 1, 2011 compliance dates. 2. Fleets that receive credit for the retirement of any vehicle prior to March 1, 2010, per section (v) below, can not count that vehicle in the calculation of reduced activity cr edit. 3. Carryover turnover credit shall be calculated for the fleet, not including those vehicles retired 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 Febr uary 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 operator 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.61 5. Fleets that do not have hour meter logs or vehicle

- specific operator logs or equivalent records that are verifiable and substantively demonstrate activity for all vehicles in the fleet: A. May use other verifiable indicators 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 fleet, as described in section 2449(g)(1)(G)4. However, s uch fleets must subtract the total credit for early retirement claimed under section (v) below from their reduced activity credit. B. May use indicators, including but not limited to revenue or total vehicle operator employment, that demonstrate a

reductio n in business or staffing 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 Executiv e 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 received fo r 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

vehi cle activity.

(1 6 ) i v v

. Credit for Early Reduced Fleet Hp Retirement

– Fleets that reduce

overall hp horsepower from March 1, 2006, to March 1, 2010, accumulate

carryover BACT turnover credit (in hp horsepower ) equal to 0.5 multiplied by

times the following : [ (Total max hp maximum horsepower of the fleet on March 1, 2006 , including low

use vehicles ) minus (Total max hp maximum horsepower of the fleet on March 1,

2010 , including low

- use vehicles ) ]

. In accordance with s S ection 2449.1 (b)(9 ) (a)(2)(A)2.c , large fleets may use any

such credit to meet any the BACT requirements that in s S ection

2449.1 (b)(1) (a)(2 )(A)(1) beginning with the may require them to meet in the year ending January 1, 2015 BACT requirements , or in any subsequent year.

Notwi thstanding s S ection 2449.1 (b)(9 ) (a)(2)(A)2.c , large fleets may not use any such credit from this provision to meet any the BACT requirements

, that in

s S ection 2449.1 (b)(1) (a)(2)(A)(1) may require them to meet in for the initial compliance year for large fleet s , which is the year ending on January 1, 2014

, compliance deadline

. For example, if a fleet accumulated BACT credit by reducing hp from March 1, 2006, to March 1, 2010, and also accumulated BACT credit from repowers during the same period, the fleet could apply the repower62 credit toward their January 1, 2014, BACT requirements, but could not apply the

credit from reduced hp under this provision to their January 1, 2014 , BACT requirements . The fle et could apply the credit from reduced hp under this provision to their January 1, 2015, BACT requirements, as well as any future

year until such credits are expended

.

(1 7 ) v. Credit for 2010 to 2011 Reduced Fleet Hp Horsepower

– Fleets that

reduce their overall hp horsepower from March 1, 2010, through to February 28,
2011, will accumulate carryover BACT credit (in hp horsepower ) equal to: (Total max hp maximum power of the fleet on March 1, 2010 , including low

- use vehicles ) minus (Total max hp maximum power of the fleet on February 28, 2011

, including low

- use vehicles ).

(1 8 ) vi. Credit for Interim Replacement and Retirement

– Fleets that replace or retire over 8 percent of the fleet’s total max hp maximum power in Tier 0 and Tier

1 vehicles in any one year in any one of the during the specified periods below will accumulate carryover BACT credit (in hp horsepower ) equal to: (Combined total of max hp maximum power of Tier 0 and Tier 1 vehicles retired over the year) minus (Combined total of max hp maximum power of Tier 0 or Tier 1 vehicles added over the year) minus [ (Total max hp maximum power of fleet at the end of the year ) multiplied by times 0. 0 8 ) ]

. In each year, the replacement or retirement of vehicles will be summed from January 1 through to December 31 o f that year, excepting 2011, during which the replacement or retirement will be summed from March 1 through to December 31.

Fleets shall exclude Tier 0 vehicles repowered with Tier 1 or higher engines, or rebuilt to a Tier 1 or more stringent emissions standard in each year (that earned BACT credit per section 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 replaced with Tier 2 or higher vehicles in order to accumulate BACT credit

. (A) 1. Large fleets: March 1, 2011 through to December 31, 2012 (B) 2. Medium fleets: March 1, 2011 through to December 3 1, 2015 (C) 3. Small fleets: March 1, 2011 through to December 3 1, 2017

b. Accumulating carryover BACT **turnover credit** 

– i. 2010

- 2015

- Beginning on January 1, 2013 for large fleets, on January 1, 2016 for medium fleets, and on January 1, 2018 for small fleets, From March 1, 2010 through March 1, 2015 for large

fleets and from March 1, 2013 through March 1, 2015 for medium

fleets a fleet will accumulates carryover turnover credit each year it

turns over or applies the highest level PM VDECS to more than the required percent of its maximum power specified in section 2449.1(a)(2)(A)1. The amount accumulated is the maximum power

that has been turned over or to which highest level PM VDECS

has been applied in excess of the percent age required percent in the 12 months prior to January March 1 of the year for in which the

carryover BACT credit is being calculated

. From March 1, 2010,63 through March 1, 2012, a medium fleet accumulates carryover turnover credit each year the total horsepower it turns over exceeds 8 percent of its maximum power.

ii. After 2015

- After March 1, 2015, a fleet 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 the carryover turno ver credit used minus the required 10 percent.

iii. Repower Credit

– From March 1, 201 0 through March 1, 2012, a

for medium fleet s 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 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 affected vehicles in the 12 mont hs prior to March 1 of the year in which the carryover is calculated.

c. Using carryover BACT turnover credit

- Accumulated carryover

BACT turnover credit may be applied to meeting the BACT turnover requirements of section 2449.1(a)(2)(A)1 in a later year . The amount of carryover BACT turnover credit used to meet the BACT turnover requirements in any one year is subtracted from the carryover BACT

turnover credit total available in subsequent years. The amount of

actual turnover or horsepower the highest level PM VDECS was installed on or retrofits plus the amount of carryover BACT turnover credit used must equal the minimum BACT requirements described in

turnover required by section 2449.1(a)(2)(A)1.

**3. Order of**  **BACT Requirements** Turnover

- All Tier 0 and Tier 1 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 the BACT requirem ents under section 2449.1(a)(2)(A)4 ., must be turned

over before the turnover of any other higher tier engines may be counted

toward the BACT turnover requirements in section 2449.1(a)(2)(A) or toward accumulating carryover BACT turnover credit. A fleet m ay, however, receive carryover BACT turnover credit per section 2449.1(a)(2) ( A)2.a.iii

. and 2449.1(a)(2)(A) 9 for a VDECS verified to

achieve NOx reductions installed on an engine, regardless of the engine’s

tier.

**4. Exemptions from**  **BACT for medium and**  **large fleets**

– A vehicle is exempt from the turnover of section 2449.1(a)(2)(A)1. if all vehicles in the64 fleet that do not qualify for an exemption under this section have been

turned over and the vehicle meets one of the following conditions: For

medium and large fleets, a vehicle is exempt from the BACT requirements of section 2449.1(a)(2)(A)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 section a through e below. A fleet that d oes not meet the fleet averages in section 2449.1(a)(1)(A)(1) must meet the BACT requirements with the vehicles that do not qualify for an exemption under either Section 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 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 lowe r the total maximum power on which the BACT requirements are calculated. a. On the compliance date, the vehicle is less than 10 years old from the date of manufacture; b. The vehicle meets all of the following specialty vehicle criteria:

i. The fleet has turned over all other vehicles first, ii. No repower is available for the specialty 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 equivalent to that o f the specialty vehicle, as demonstrated to the Executive Officer, and iv. The specialty vehicle has been retrofit with the highest level VDECS

installed

, c. The v ehicle has had been retrofitted within the last six years with a Level 2 or 3 PM VDECS inst alled within the last six years that and

such VDECS was highest level PM VDECS at the time of the

installation retrofit

, or d. The v ehicle has a Tier 4 interim or Tier 4 final engine. e. The vehicle has the highest level PM VDECS installed prior to January
1, 2013, March 1, 2011 , except that this exemption may be applied to no more than 15 percent of a fleet’s total horsepower as of January 1,

2013 March 1, 2010.

i. If before January 1, 2013 , the fleet has installed the highest level PM

VDECS on more than 15 percent of the fleet’s 1, 2013

, total horsepower, the fleet may apply this exemption to any vehicles with the highest level PM VDECS installed, as long the total horsepower of those vehicles does not exceed the 15 percent exemption threshold estab lished in section e. above. ii. The highest level PM VDECS must remain on the vehicle in order to maintain this exemption. If a VDECS fails, the fleet must replace the VDECS in accordance with section 2449(e)(1) to maintain this exemption for the vehicle.65 **5. Exemptions from BACT for Small Fleets** 

– For small fleets, a vehicle is exempt from the BACT requirements of section 2449.1(a)(2)(A)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 section a through e below. A fleet

that d oes not meet the fleet averages in section 2449.1(a)(1)(A)(1) must meet the BACT requirements with the vehicles that do not qualify for an exemption under either Section 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 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

lowe r the total maximum power on which the BACT requirements are

calculated.

a

. On the compliance date, the vehicle is less than 10 years old from the date of manufacture; b. The vehicle meets all of the following specialty vehicle criteria described

above i n section 2449.1(a)(2)(A)4.b.

c. There is no highest level VDECS available for the vehicle’s engine as of 10 months prior to the compliance date (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 th e safe operation of the vehicle as demonstrated 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 v ehicle has a Tier 4 interim or Tier 4 fin al engine.

e . The vehicle’s engine has already been retrofitted with a Level 2 or 3 VDECS that was the highest level PM VDECS available at time of installation. An engine with a Level 2 VDECS that was not the highest

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

**6 5. Delay Tier**  **2 1 turnover** 

- All vehicles with a Tier 2 1 or higher engine are exempt from the BACT turnover requirement s through until the compliance year ending January 1, 201 5 March 1, 2013 (i.e., the first

turnover of or VDECS installations on Tier 2 1 or higher engines would be required between January 1, 2015 and December 31, 2015 March 2, 2012 and March 1, 2013 ), provided that all Tier 0 and Tier 1 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.

7 6. Designating vehicle as permanent low

- use

– In the year in which a fleet designates A fleet may designate a vehicle that was formerly used 100 200 hours

or more per year as a permanent low

- use vehicle, by limiting its use to less than

100 hours per year and committing to keep its use less than 100 hours per year

. the fleet will accumulat e carryover BACT credit (in horsepower) equal to the maximum power of such vehicle. Only the designation of a vehicle that was formerly used 200 hours or more per year as a permanent low

- use vehicle will66 qualify a fleet to receive such carryover BACT cred it. For example, a fleet could designate a vehicle used 500 hours in 2016 as permanent low use on December 31, 2016, for credit toward the January 1, 2017

, requirements, and limit the vehicle hours from January 1, 2017, to December 31, 2017

, (and all futu re years)

to 200. a. Only vehicles formerly used 100 hours 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 designate a vehicle whose use drops below 100 hours per year as low

- use, or to count it toward the turnover requireme nts. If such a vehicle is not designated as low

- use, its use may increase beyond 100 hours per year in subsequent years.

**8 7** 

**. Rounding** 

- If the horsepower to meet BACT require ments d to be turned

over under section 2449.1(a)(2)(A) is less than half of the maximum power of the lowest horsepower engine in the fleet that is subject to the

BACT turnover requirements, the next engine is not required to be turned

over or have a highest level PM VDECS applied to it . However, on the next year’s compliance date, any horsepower not accounted for turned

over due to this rounding provision must be added to the BACT require ments d turnover under section 2449.1(a)(2)(A). Once the required horsepower to be turned over equals or exceeds half of the maximum power of the next engine in the fleet that is subject to the BACT turnover requirements, the next engine must be turned over or have a highest level PM VDECS applied to it

.

**9 8** 

**.** Turnover **BACT Credit**  **for NOx VDECS**  Retrofits

- VDECS that have

been verified as achieving to reduce NOx reductions may be used to satisfy the BACT turnover requirements in section 2449.1(a)(2)(A)1 on each compliance date as follows:

For VDECS verified to reduce NOx but not as achieving PM reductions,

BACT Turnover credit for NOx VDECS retrofits equals (Verified Percent NOx Reduction divided by 60 percent) multiplied by (Maximum power of

the vehicle to which the the VDECS was applied to on which VDECS

verified to achieve NOx reductions was installed in last 12 months ).

For VDECS verified to reduce NOx and that are also the highest level PM

VDECS

, or for VDECS that have been verified as achieving NOx reductions and is installed on an engine that also has a highes t level PM VDECS that is verified separately, BACT credit for VDECS verified to

reduce NOx equals (Verified Percent NOx Reduction divided by 120 percent) multiplied by ( Maximum power of the vehicle to which the the

VDECS was applied to ).67 T his credit is applied in addition to credit for installing the highest level PM

VDECS in section 2449.1(a)(2)(A)2.b

. BACT Turnover credit for NOx

VDECS retrofits may be applied to meet the turnover BACT requirements of section 2449.1(a)(2)(A)1 or to accumulate carryove r BACT turnover

credit.

**10 . Delayed Requirements for Early Compliance** 

– Large fleets are exempt from the January 1, 2014 performance requirements if the sum of the fleet’s NOx credits on March 1, 2010, exceeded 8 percent of the fleet’s March 1, 2009 horsepower. To determine eligibility, AR B will take the sum of: Early R epower credit gained under 2449.1(a)(2)(A) (2)(a)i. plus Early Replacement credit gained under 2449.1(a)(2)(A)(2)(a)ii. plus Early VDECS credit for VDECS under 2449.1(a)(2)(A)(2)(a)ii i. plus credit for Early Retirement gained under 2449.1(a)(2)(A)(2)(a)iv. plus turnover credit gained from March 1, 2009, to February 28, 2010, that was not accounted for under section 2449.1(a)(2)(A)(2)(a)iv. If the sum of these credits exceeds (Total

ma ximum power of the fleet on March 1, 2009 times 0. 0 8), then the fleet will not be required to meet either the January 1, 2014, fleet average or the January 1, 2014 BACT requirements. This provision shall not have the effect of reducing any credit that any fleet would otherwise have 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 NOx credits on March 1, 2010, in excess of 8 percent of such fleet’s horsepower on M arch 1, 2009.

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, 3965 6, 39657, 39658, 39659, 39665, 39667, 43000, 43000.5, 43013, 43016, 43018, and 43018.2, Health and Safety Code.68 Section 2449.2 PM Performance Requirements

(a) Performance Requirements

-

Each fleet must meet the fleet average requirements in section 2449.2(a)(1) by March 1 of each year or demonstrate that it met the best available control technology (BACT) requirements as described in section 2449.2(a)(2). There are differing requirements for large and medium, and small fleets. If various po rtions of a fleet are under the control of different responsible officials because they are part of different subsidiaries, divisions, or other organizational structures of a company or agency, the fleet portions may comply with the performance requirement s separately and be reported separately. However, the total maximum power of the vehicles 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) describes requirements for fleets that change

size.

(1) Fleet Average Requirements (A) Fleet Average Requirements for Large and Medium Fleets 1. Diesel PM Fleet Average

- Fo r each compliance date, a large or medium fleet must demonstrate that 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] divided 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 eng ine, read 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 Diesel 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 calculate the Diesel PM Target Rate for each compliance date for large and medium fleets. The Emission Factors are defined in Appendix A.69 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 Requirements 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 demonstrate that its Diesel PM Index was less than or equal to the calculated Diesel PM Target Rate.

The equations for calculating Target Rates 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)] divided 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 value 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 calculate the Diesel PM Target Rate for each compliance date for small fleets. The Emission F actors are defined in Appendix A.70 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 determine if it will be able to meet the fleet average requirements for the next March 1 compliance date, and if not, the following BACT requirement must be met. If a fleet does not meet th e 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 section 2449.1(a)(1) and the Diesel PM Target Rates in section 2449.2(a )(1) in a compliance 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 section 2449.2(a)(2)(A) in that year.

(A) PM Retro fit 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 demonstrate that it has retrofit the required percent of its total maximum power (not including specialty vehicles retrofitted and exempted from turnover in section 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 longer operating in California. Fleets may count acquisition of vehicles with Tier 4 interim or Tier 4 final engines

or retirement of Tier 0 vehicles toward the retrofit requirement as described below. The required retrofit 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 flee t average target in 2011 but not 2012, and 2071 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 fle et 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 interim and Tier 4 final engines may be

coun ted 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, the 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 Retrofitting for Fleets with Reduced Horsepower

- If since March 1 of the previous year, a fleet’s total maximum power has decreased, 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 required hp to be retrofit under section 2449.2(a)(2)(A)1. Such retirement of Tier 0 vehicles may not be used to accumulate carryover PM retrofi t credit. Retired Tier 0 vehicles that are counted toward the 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 Diesel Vehicles to Alternative Fuel or Gasoline

- Powered

- Fleets that convert or repower a diesel vehicle subject to the regulation to alternative fuel or gasoline

- powered may count the max power of the vehicle 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

– F leets 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

t otal maximum power of engines on which highest level VDECS

was installed before January 1, 201 0 , 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 install highest level VDECS on their

vehicles before March 1, 2012 will accumulate carryover retrofit credit equal to; 2 multiplied by total maximum power of engines on.

72 which highest level VDECS was installed. 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 accumulate carryover retrofit credit (in horsepower). Fleet activity is defined as the sum of [(Total maximum power of the vehicle) times (Number of hours the vehicle was operated in the applicable 12 month period)] for each vehicle

in the fleet. 1. Carryover retrofit credit g enerated from reduced activity may only be applied toward the March 1, 2010, or March 1, 2011 compliance dates. 2. Fleets that receive credit for the retirement of any vehicle prior to March 1, 2010, per section (iv) below, can not count that

vehicle in th e calculation of reduced activity credit. 3. Carryover retrofit credit shall be calculated for the fleet, not including those vehicles retired 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 mus t use vehicle specific data, including but not limited to hour meter logs or operator 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 n ot have hour meter logs or vehicle

- specific operator logs or equivalent records that are verifiable and substantively demonstrate activity for all vehicles in the fleet: A. May use other verifiable indicators that are directly related to reduced vehicle op eration 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 fleet, as described in section 2449(g)(1)(G)4. However, such fleets must sub tract the total credit for early retirement claimed under section (iv) below from their reduced activity credit. B. May use indicators, including but not limited to revenue or total vehicle operator employment, that demonstrate a.

73 reduction in business or s taffing 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 gra nt 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 received 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 t he fleet 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 retrofits plus the carryover retrofit credit it uses exceeds the required percent of its maximum power specified in section 2449.2(a)(2)(A)1. The amount accumulated is the maximum power retrofit plus the carryover retrofit credit used minus the required percent in the past 12 months prior to March 1. A large fleet also accumulates carryover retrofit 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 cr edit 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 the single credit earned from January 1, 20 10 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 meeting the retrofit requirements 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 retrofit credit total available in subsequent years. The amount of actual retrofit plus the amount of

carryov er retrofit credit used must equal the minimum BACT retrofit rate required by section 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 vehicles74 older than 5 years for which the highest level VDECS available is a Level 3 VDECS have been retrofit, except for specialty vehicles ut ilizing 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 requirements in section 2449.2(a)(2)(A)1. if all vehicles in the fleet that do not qualify for an

exe mption under the following conditions have been retrofitted, and the vehicle meets one of the following conditions: a. On the date of compliance, the vehicle is less than 5 years old from the

vehicle’s date of manufacture, b. There is no highest level VDEC S available 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 the safe operation of the vehicle as demonstrated per section 2449(e)(8)), c. The vehicle’s engine is equipped 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 the maximum power of the lowest horsepower engine in the fleet that is subject to the retrofit requirements, the next engine i s not required to be retrofitted. However, on the next year’s compliance date, any horsepower not retrofit due to this rounding provision must be added to the required retrofit under section 2449.2(a)(2)(A). Once the required horsepower to be retrofit eq uals or exceeds half of the maximum power of the next engine 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 lar ge 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 particulate 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, 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, 41511, 42400, 42400.1, 42400.2, 42402.2, 43000,

43000.5 , 43013, 43016, 43018, and 43018.2, Health and Safety Code.75 **2449.3** 2449.2 Surplus Off

- Road Opt

- In for NOx (SOON) Program

(a) Purpose

The purpose of this section is t T o achieve additional reductions of oxides of nitrogen (NOx) emiss ions from in

- use off

- road diesel

- fueled vehicles in California. The reductions must be surplus to those that would otherwise be achieved through implementation of title 13, California Code of Regulations, sections 2449, and 2449.1 and 2449.2

,

“ Regulation f or In

- Use Off

- Road Diesel

- Fueled Fleets Vehicles” (Off

- Road r egulation)

.

(b) Applicability

**(1 )**  **District Applicability**

- Section 2449.3 2449.2 applies to any air quality management district or air pollution control district (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 2449.3 2449.2 applies to a fleet that: (A) Operates individual vehicles within the air district; (B) As of January 1, 2008, on a statewide level, consisted of more than 40 percent Tier 0 and Tier 1 vehicles, and; (C) Has a s tatewide fleet with maximum power (max hp) greater than 20,000 horsepower (hp)

. , excluding the hp from engines in two

- engine

vehicles cranes and the hp from single engine cranes formerly subject to the Cargo Handling Equipment Regulation.

(c) Definitions

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

definitions:

**(1) “**  **Contract period ”**  means the period of time in which the vehicle participates in the program and is under contract to the air district to achieve additional emission

reductions. **(2) “**  **Operated within the district ”**  means a vehicle that currently operates within the boundaries of the air district and, during the three years immediately prior to the solicitation deadline, operated at least one hundred hours per y ear and operated more hours within the boundaries of the air district than in any other

district. **(3) “**  **Project ”**  means actions on one vehicle to reduce NOx emissions, such as retrofit, repower, or vehicle replacement, for which funding is requested. **(4**

**) “**  **Solicitation ”**  means a public announcement by the air district, requesting that fleets submit grant applications to the air district to participate in emission reduction incentive programs under this section. **(5) “**  **Solicitation deadline ”**  means the last da y, as provided in the solicitation, that an application may be physically received by the air district.

(d) Requirements76 **(1)** If an air district, having held a public hearing and opted into the SOON program and made the program mandatory per section 2449.3(e)(9) 2449.2(e)(9) , issues a solicitation for applications for funding under the SOON program, and if the solicitation so requires, a fleet that meets the applicability criteria of subsection (b) on the date of the solicitation must, before the solic itation 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 fleet and that part of the fleet that has operated within the air district, as defined in section (c)(2) above. If the solicitation deadline is before 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 provide the informatio n that was reported to ARB on the most recent March April 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 deadlin e 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 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 , and using the SOON NOx targets set forth in Table

5 1 below. If there is no NOx SOON fleet average target rate for the year in which the solicitation deadline occurs, the nearest future target rate

should shall 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: January 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

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 2.7 3.7 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 average target rate, as calculated in section 2449.3(d)(1)(C) 2449.2(d)(1)(C) , must apply for SOON funding. T he application submitted must be completed according to the guidelines and conditions established under the solicitation and, if the necessary NOx retrofits, repower, or vehicle replacements are available, must indicate how NOx retrofits, repowers, or vehi cle replacements for which funding is requested will bring the NOx fleet average index for vehicles that operated77 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 und er 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 compliance with Off

- R oad the in

- use off

road diesel vehicle regulation, as specified 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 district, 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 di strict 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 averag e index calculated for its fleet operating within the air district

exceeds the NOx SOON fleet average target rate, and the fleet would like to qualify for funding. If the air district approves the fleet’s application for funding,

the fleet must achieve th e NOx reductions as set forth in subsection (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 opt into the SOON program**

– Districts must prioritize requested pr ojects based on the optimum NOx cost

- effectiveness and on whether the fleet requesting the SOON program funding has requested high priority for SOON program funding. Air districts must report to ARB, in a format approved by the Executive Officer, all proj ects funded under the SOON program, including the equipment identification number of all vehicles funded.

(e) Special Provisions

–

**(1) Accounting for the Off** 

**- Road regulation**  **in**

**- 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 contrac t period, vehicles equipped with NOx retrofits, repowered with new engines, or that have been replaced using SOON program funding,

cannot use this lower emission rate to calculate the fleet average index and
target rate, Fleet Average Targets, Fleet Average Indices, NOx indices, PM indices, NOx target rates, PM target rates, and BACT turnover credit and

retrofit credit under section s 2449.1 and 2449.2 . Instead, for the purposes of calculating the fleet average index and target rate, Fleet Average Targets,

Fl eet Average Indices, NOx indices, PM indices, NOx target rates, PM target78 rates, and BACT turnover credit and retrofit credit under section s 2449.1 and

2449.2 , these vehicles must be reflected as if the actions taken under the SOON program did not occur. Actions taken using SOON program funding may be used for determining compliance under section s 2449.1 and 2449.2 after the completion of the SOON program project contract period for that

vehicle. For example, if a Tier 0 vehicle is repowered with a Tier 3 engine with SOON program funds, for purposes of compliance with section s 2449.1

and 2449.2 , that vehicle is still treated as if it were a Tier 0 until the end of the contract period for the SOON program project. (C) If a fleet pays for a VDECS retrofit t hat is installed concurrently with a repower or vehicle replacement funded with SOON program funding, the fleet may

count the VDECS retrofit toward determining compliance under section

2449.2 2449.1

. 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 VDECS retrofit diesel particulate filter , the fleet may count the original engine manufacturer diesel particulate filter retrofit

toward s determining compliance under section 2449.2 2449.1

. **(2) Turnover in section 2449.1** 

- A fleet may apply to the Executiv e Officer for an extension from the requirements in section 2449.1 (b) (a)(2)(A) if, using the accounting provisions in section 2449.3(e)(1) 2449.2(e)(1) , section

2449.1 (b) (a)(2)(A) would require, prior to January March 1, 2014, a fleet to turn

over vehicles t hat are Tier 2 or better. The exemptions in section s 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 2 1 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 section s 2449.1 and 2449.2 and the actions for which it is applying for funding under section 2449.3 2449.2

. Compliance plans must demonstrate that in the absence of any actions taken to satisfy

section 2449.3 2449.2 , the fleet will be able to meet the requirements of section s
2449. 1 1 and 2449.2 through the remaining actions set forth in the plan. **(4) Surplus** 

- Participation in the SOON program does not reduce the actions required for any fleet to comply with any requirements in the Off

- Road regulation

statewide in

- us e off

- road diesel vehicle regulation under section s 2449.1 and

2449.2

. **(5) Tracking devices** 

- An air district may require any vehicle repowered, retrofitted, or replaced with incentive money through 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 vehicle is used in the air district for the required percent of operating hours. **(6) Particulate Matter Retrofits** 

-

a. The exemption from retrofit requireme nts for vehicles less than 5 years old in section 2449.2(a)(2)(A)4.a. 2449.1( a)(2)(A)5. 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 of79 retrofit, the fleet may but is not required to apply for SOON funding for that

vehicle. (B) c. A flee t that receives SOON funding to repower or replace a vehicle is not required to install the highest level VDECS along with the repower or replacement. **(7) Funding Guidelines** 

- Projects funded under the SOON program with Carl Moyer program money must be administered consistent with applicable Carl Moyer program guidelines, except as noted in section 2449.3(e)(6)c 2449.2(e)(6) c (B) . If a project is funded from other sources, the SOON program must be administered consistent with any applicable guidelines.

Th e 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)(1) but that is planning to move vehicles out of the air district such that the vehicles will not operate enough hours in the air district to qualify for SOON funding may leave such vehicles out of the

NOx fleet average index calculati on in section 2449.3(d)(1)(B) 2449.2(d)(1)(B)

, the NOx SOON fleet average 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 SOON program. (A) a. For fleets in the South Coast Air Quality Management District and San Joaquin Valley Air Pollution Control District , solicitations with a deadline before April 2, 2009, shall be volu ntary. For solicitations with a deadline on or after April 2, 2009, the South Coast Air Quality Management District and San Joaquin Valley Air Pollution Control District may elect to make participation by fleets voluntary or mandatory. (B) b. In any dist rict other than the South Coast Air Quality Management District or San Joaquin Valley Air Pollution Control District, for solicitations with a deadline before April 2, 2010, participation by fleets is voluntary. For

solicitations with a deadline on or aft er April 2, 2010, the district may choose to make participation by fleets voluntary or mandatory. (C) c. The solicitation shall announce the air district’s decision regarding voluntary or mandatory participation.

(f) Local Air District Opt

- In

**(1)** To participate in the SOON program, an air 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 choice between a voluntary and mandatory SOON program, the air district’s governing board must decide whether participation by fleets is voluntary or mandatory.80 **(2) District Guidelines** 

- An air district opting into section 2449.3 2449.2 must develop, through a public process including a duly noticed public workshop and formally noticed public hearing, additional administrative provisions necessary to implement this section, including, but not limited to, funding 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

- effectiveness of projects that may be funded

and must incl ude the method used for prioritizing projects based on cost

effectiveness 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 projec t cost. Compliance planning guidelines must indicate the format and length of compliance plans. Air district guidelines may include a pre

- application process that collects vehicle data (model year, hp horsepower , hours of use) and then requires full SOON project applications only for vehicles likely to receive funding. **(3) ARB Approval of District Guidelines** 

- Before any guidelines, including administrative or funding guidelines, approved by an air district take effect, they must be approved by the Executive Officer. Air district staff shall submit proposed guidelines to the Executive Officer before they are acted on by the district’s governing board. The Executive Officer will respond within 30 days with

a des cription of any required changes to the proposed guidelines necessary for Executive Officer approval. In evaluating proposed air district guidelines, the Executive Officer shall consider, among other factors, the adequacy of cost

effectiveness criteria, w hether fleet requests for high priority for SOON funding are given preference, and uniformity of district guidelines between air districts. After guidelines are adopted by a district’s governing board, air district staff shall submit the adopted guideline s to the Executive Officer. 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 enforce the requirements of section

2449.3 2449.2 . The Executive Officer retains the authority to review any district’s

administration of section 2449.3 2449.2 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. Reference: 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.81 Appendix A

–

Use the values in this these table s unless engine is a Post

- 2007 Flexibility Engine, or unless the engine is an engine certified to on

- road standards.

Engines certified to on

- road standards should shall use the standard to which the engine

is certified. Flexibility engines certified January 1, 2007 or later should shall use the

emission standard to which the engine is certified. Engines certified to FEL Family

Emission Limits and flexibility engines certified before January 1, 2007

, should shall still

use t he emission factors in the table below.

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

standard lower than that shown in t hese 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 initial 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 representative is unable to determine the model year o f the engine by examining the engine’s build and components, such an engine shall be treated as a 1969 model year engine. If a manufacturer can bracket the model year of an engine (for example that an engine was built between 1987 and 1994) by examining

t he engine’s build and components, the earliest date the engine could have been manufactured shall be used as the model year of that engine (in the example, 1987).

For engines that have been retrofit with VDECS, the PM Emission Factor is reduced 50

perce nt 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.82 

### 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 0.0383 

### NOx Emission s 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