Appendix A.1 
Proposed Regulation Order 
Proposed Amendments to the Airborne Toxic Control 
Measure for In-Use Diesel-Fueled Transport 
Refrigeration Units (TRU) and TRU Generator Sets, and 
Facilities Where TRUs Operate. 
Note: This version of the Proposed Regulation Order complies with Government 
Code section 11346.2 subdivisi on (a)(3). The proposed amendments ar e shown 
in underline to indicate additions and strikethrough to indicate deletions from  
the existing regulatory text. For ease of readability,  CARB has also provided a 
version of the proposed amendments that ca n toggle between amendments in 
strikeout/underline and a “clean" version with amendments incorporated into 
the regulatory text, which can  be found in Appendix A.2 
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  Proposed Regulation Order 
Amendments to Division 3, Chapter 9, A rticle 8, Sections 2477, 2477.1, 2477.2, 2477.3, 
2477.4, 2477.5, 2477.6, 2477. 7, 2477.8, 2477.9, 2477.10,  2477.11, 2477.12, 2477.13, 
2477.14, 2477.15, 2477.16, 2477.17, 2477.18, 2477.19, 2477.20, and 2477.21, and 
Adoption of Division 3, Chapter 9, A rticle 8, Sections 2477.22, 2477.23, and 2477.24, 
Title 13, California Code of Regulations, to read as follows: 
§ 2477. Airborne Toxic Control Measure for In-Use Diesel-Fueled Transport 
Refrigeration Units (TRU) and TRU Generator Sets, and Facilities Where TRUs Operate. [Renumbered] 
Sections 2477 through 2477.24 shall be known as the Transport Refrigeration Unit 
Regulation, or TRU Regulation.  
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
39674, 39675, 42400, 42400.1, 42400.2, 42400.3.5, 42402, 42402.2, 42410, 43013, 
43018, and 4301843019.1, Health and Safe ty Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
§ 2477.1. Purpose 
Diesel particulate matter (PM) was identified in  1998 as a toxic air contaminant. This 
regulation implements provisions of the Di esel Risk Reduction Plan, adopted by the 
California Air Resources Board in October  2000, as mandated by the Health and 
Safety Code Sections 39650-39675, to reduce emissions of substances that have been 
determined to be toxic air contaminants . Specifically, this regulation uses a phased 
approach to reduce the diesel PM, oxi des of nitrogen (NOx), and greenhouse gas 
(GHG) emissions from in-use transport refrigeration units (TRUs) and TRU generator 
(gen) set equipment used to power electrically  driven refrigerated shipping containers 
and trailers that are operated in California. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013, 43018, and 4301843019.1, Health a nd Safety Code. Reference: Sections 
39618, 39650, 39658, 39659, 39666, 39667, 39674, 39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
§ 2477.2. Applicability. 
Owners and operators: Except as provi ded in section 2477.3, sectionthis TRU 
Regulation applies to the following entities: 
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 (a) Owners and operators: Section 2477.5 of this regulation applies to owners and 
operators of diesel-fueled TRUs and TRU gen sets (see definition of operator 
and owner in section 2477.4) that operat e in the State of California, regardless 
of where the vehicle is based. This specifically includes California-based and 
non-California-based TRUs and TRU gen sets that are installed on trucks, 
trailers, shipping containers, and railcars. 
(b) Terminal operatorsVehicle Owners: Section  2477.6 of this regulation applies to 
operators of terminals located in Ca lifornia where TRU-equipped vehicle owners 
oftrucks, or tractor-trailers, or shippi ng containers, that use TRUs or TRU gen 
sets are regularly garaged, maintained, operated, or dispatched from, including 
a dispatch office, cross-doc facility, maintenance shop, business, or private 
residenceon California highways. 
(c) Drivers: Section 2477.7 applies to drivers (as defined in section 2477.4) that 
drive trucks or tractor-trailers that use TRUs or TRU gen sets on California 
highways. 
(d) Freight brokers and freight forwarder s: Section 2477.8 applies to freight 
brokers and freight forwarders (as defined in section 2477.4) that arrange, hire, 
tender contracts for, or di spatch the transport of peris hable goods on California 
highways or railways in trucks, trailers, shipping containers, or railcars that are equipped with TRUs or TRU gen sets. 
(e) Carriers: Section 2477.9 applies to moto r carriers (as defined in section 2477.4) 
that use, cause to be used, or dispatch TR U-equipped trucks, trailers, or railcars, 
or trailer chassis or shipping containers with TRU gen sets that are driven on 
California highways or railways. 
(f) California-based shippersShippers: Section  2477.10 applies to California-based 
shippers (as defined in section 2477.4) th at arrange, tender contracts for, or 
dispatch the transport of perishable goods from any location in California inthat requires the operation of TRU-e quipped or TRU gen set-equipped trucks, 
trailers, shipping containers, or railcars in California. 
(g) California-based receiversReceivers: Se ction 2477.11 applies to California-based 
receivers (as defined in section 2477.4) that arrange, tender contracts for, or 
dispatch the transport of perishable goods to any location in California inthat requires the operation of TRU-e quipped or TRU gen set-equipped trucks, 
trailers, shipping containers, or railcars in California. 
(h) Lessors and Lessees: Section 2477.12 appli es to any person that rents or leases 
(lessor) TRUs or TRU gen sets and those persons renting (renter) or leasing 
(lessee) such equipment that is operated in California or that is based in 
California. 
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 (i) TRUand, TRU gen set, and ZE truck TR U original equipment manufacturers: 
Section 2477.13 applies to original equipment manufacturers (as defined in 
section 2477.4) that direct TRU or, TRU gen set, or ZE truck TRU sales to the 
California market. 
(j) TRU, TRU gen set, and TRU-equipped truck  and trailer dealers located in 
California: Section 2477.14 applies to  TRU, TRU gen set, and TRU-equipped 
truck and trailer dealers that maintain a business location in California and sell, 
maintain, or repair new or in-use TRUs, TRU gen sets, or TRU-equipped trucks or trailers. 
(k) Repair shops located in California that work on TRUs or TRU gen sets: Section 2477.15 applies to repair shops that maintain a business located in California 
and install replacement engines in TRUs or  TRU gen sets, or retrofit TRUs or 
TRU gen sets with verified diesel emissio ns control strategies to comply with 
this subarticle. 
(l) Engine rebuilders: Section 2477.16 applies to TRU or TRU gen set engine 
rebuilders that sell to the California market. 
(m) Facilities: Section 2477.17 applies to fac ilities located in California with 20 or 
more loading dock spaces serving refrigerated areas where perishable goods 
are loaded or unloaded for distribution on trucks, trailers, shipping containers, 
or rail cars that are equipped with TRUs and TRU gen sets and that are owned, leased, or contracted for by the fac ility, its parent company, affiliate, or 
subsidiary that are under facility control (see definition). 
(m) Applicable facility owners and operators: Section 2477.17 applies to owners and operators of applicable facilities located in California. 
(n) To the extent not already covered under  subsections (a) through (m), above, 
section 2477.18 of this regulation shall apply to any person in this State selling 
to an ultimate purchaser, or renting or leasing new or used TRUs or TRU gen 
sets, including, but not limited to, ma nufacturers, distributors, dealers, 
auctioneers, carriers, private fleets, independent owner-operators, and rental and leasing companies. 
(o) For purposes of this subarticle, the terms “lease,” “leased,” “lessor,” and 
“lessee” mean the same as “rental ag reement,” “rented,” “owner of rented 
vehicle,” and “renter,” respectively. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
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 § 2477.3. Exemptions. 
(a) This regulationTRU Regulation does no t apply to military tactical support 
equipment. 
(b) Obviously nonNon-operational TRUs or TRU gen sets are exempt from certain 
sections of this subarticle, as specified below , except that the prohibitions in 
section 2477.18 apply with respect to se lling, renting, or leasing to a person 
that could be reasonably expected to  operate the TRU in California:. 
(1) Any TRU that is removed or separat ed from the truck or trailer van, 
shipping container, or rail car. This  exemption does not include TRU gen 
sets that are not attached to a shippi ng container or trailer chassis. 
(2) Any trailer TRU housing that remains attached to a trailer van, but the 
fuel tank and battery have been re moved and a label with the word 
“NONOPERATIONAL” has been affixed or  attached to the housing in 
letters that contrast sharply with the color of the TRU housing and can be 
seen from 50 feet during daylight hour s when the vehicle is stationary. 
(3) Any truck TRU housing that remains attached to a truck van, but the 
positive and negative battery cables, fuel supply and return lines, and 
condensate drain line have been removed so that there are no visible ancillary connections to the TRU housing and a label with the word 
“NONOPERATIONAL” has been affixed or  attached to the housing in 
letters that contrast sharply with the color of the TRU housing and can be 
seen from 50 feet during daylight hour s when the vehicle is stationary. 
(4) Any TRU or TRU gen set that has no engine or fuel injection system 
installed, making the engine incapable of being started. 
(5) TRU gen sets that have been quarantined in a designated area that is separated from other compliant TRU gen sets by a cordon or barrier with 
signs that read “NONCOMPLIA NT - DO NOT OPERATE IN 
CALIFORNIA”. Bright red tags must be affixed to the TRU gen set control panel at all times while in California that read: “NONCOMPLIANT 
- DO NOT OPERATE IN CALIFORNIA”. TRU gen sets may be stored in a 
shipping container in lieu of being quarantined in a cordoned area. 
(c) Transport refrigeration systems that are no t driven by an integral diesel internal 
combustion engine are exempt from the re quirements of this subarticle., except 
for units used to comply with the ZE truck TRU requirements in section 2477.5(b). Examples of exempt equipmen t include, but are not limited to: 
(1) transport refrigeration systems that are driven by gasoline-fueled internal combustion engines; 
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 (2) transport refrigeration systems that are driven by electric motors with no 
integral diesel engine providing power; or 
(3) Pure cryogenic temperature control systems with no diesel engine driven 
refrigeration system integration. 
(d) TRUs that are used during an emergency (as defined) are exempt from the in-
use performance standards of sectionrequire ments of sections 2477.5(a), (b), (c), 
and (d) of this subarticle, provided t he requirements of section 2477.5(jl) are 
met. This exemption expires on January 1, TRUs operating in2025.  California-
based TRUs are not exempt from the ARBER registrationTRU reporting requirements in section 2477.5(eg). 
(1)(e) Noncompliant TRUs on refrigerated railcars that are not operated while 
traveling through California shall be exempt ed provided the Executive Officer 
has previously approved a written complia nce plan submitted by the railway 
carrier., as follows: 
(2)(1) The written compliance plan mustshall clearly identify the monitoring, 
recordkeeping, and reporting procedures that the railway carrier will 
implement and utilize to ensure that no ncompliant TRUs on refrigerated 
railcars will not operate while in California. 
(3)(2) The compliance plan shall establi sh monitoring, recordkeeping, and 
reporting procedural requirements that  the Executive Officer finds are 
sufficient to identify non-compliant  TRUs being moved on railways in 
California and to ensure that such TRUs will not operate at any time while 
they are present within California. 
(A) The compliance plan mustshall include, without limitation: the 
procedure for tracking and recording routes and dates of travel 
within California of each noncompliant TRU, information 
identifying each noncompliant TRU (e.g. the railway carrier’s 
reporting mark followed by the one-to-six-digit number which 
together uniquely identifies the railcar), a description of the automated monitoring and recordkeeping system for reporting 
the TRU “engine on” or “engine off” status, and the procedure for 
expeditiously reporting violations observed and/or discovered by the railway carrier. 
(B) AThe compliance plan shall include a statement is required, signed 
by an authorized railroad represent ative, declaring that the railway 
carrier agrees to be bound by the compliance plan. 
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  (4)(3) Within 30 days of the submission of a complete compliance plan, the 
Executive Officer shall approve or disapprove the compliance plan based 
on the information submitted by a railway carrier as specified in sections 2477.3(e)(21) and (32) above, and based on good engineering judgment. 
If the compliance plan is disapproved,  the Executive Officer shall inform 
the railway carrier of the reasons for the disapproval. The railway carrier may revise the compliance plan to address the basis for disapproval and 
resubmit the compliance plan for EO approval or disapproval. 
(5)(4) The railway carrier shall maintain records collected pursuant to the approved compliance plan for a period of at least three (3) years and make these records availabl e to ARBCARB upon request. 
(e)(f) Railway carriers are exempt from the owner or owner/operator requirements of 
section 2477.5 for any TRU or TRU gen set that is not owned by the railway carrier, provided: 
(1) The TRU or TRU gen set is not leased by the railway carrier, in which 
case, section 2477.12 applies; or 
(2) The railway carrier or its agent is only fueling, monitoring to assure proper operation, keeping in operat ion, arranging repairs at the request 
of the owner, or restarting the TRU or TRU gen set engine after an unscheduled shut-down or repair, and is  not performing any of the other 
activities listed under the definition of “operate”. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013, 43018, and 4301843019.1, Health a nd Safety Code. Reference: Sections 
39618, 39650, 39658, 39659, 39666, 39667, 39674, 39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
§ 2477.4. Definitions. 
(a) For purposes of this regulationTRU Regulation, the following definitions apply: 
(1) “Affiliate or Affiliation” refers to a relationship of direct or indirect control 
or shared interests between the subject business and another business. 
(2) “Alternative Fuel” means natural gas, propane, ethanol, methanol, or 
advanced technologies that do not rely on diesel fuel, except as a pilot ignition source at an average ratio of less than 1 part diesel fuel to 10 parts total fuel on an energy equivalent basis. Alternative fuels also means any of these fuels used 
in combination with each other or in combination with other non-diesel fuels. 
Alternative-fueled engines shall not have th e capability of idling or operating 
solely on diesel fuel at any time. 
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 (3) “Alternative-Fueled Engine” means an engine that is fueled with a fuel 
meeting the definition of alternative fuel. 
(4) “Alternative Diesel Fuel” means any fuel used in diesel engines that is 
not commonly or commercially known, so ld or represented as No. 1-D or No. 2-
D, pursuant to the specification for Diesel Fuel Oils D975-81, and does not 
require engine or fuel system modificat ions 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, biodiesel, Fischer Tropsch fuels, and emulsions of water in diesel fuel. 
Natural gas is not an alternative diesel f uel. An emission control strategy using a 
fuel additive will be treated as an alternative diesel fuel based strategy unless: 
(A)(1) The additive is supplied to the vehicle or engine fuel by an on-board 
dosing mechanism, or 
(B)(2) The additive is directly mixed into the base fuel inside the fuel tank of the vehicle or engine, or 
(C)(3) The additive and base fuel are not mixed until vehicle or engine fueling 
commences, and no more additive plus base fuel combination is mixed 
than required for a single fueling of a single engine or vehicle. 
(5) “ARB” means the California Air Resources Board. 
(6) “ARBER” means the ARB’s Equipment Registration system. 
“Alternative Fuel” means natural gas, prop ane, ethanol, methanol, or advanced 
technologies that do not rely on diesel fuel, except as a pilot ignition source at an average ratio of less than 1 part diesel fuel to 10 parts total fuel on an 
energy equivalent basis. Alternative fuels also mean any of these fuels used in 
combination with each other or in combination with other non-diesel fuels. Alternative-fueled engines shall not have th e capability of idling or operating 
solely on diesel fuel at any time. 
“Alternative-Fueled Engine” means an engine that is fueled with a fuel meeting 
the definition of alternative fuel. “Applicable Facility” is any of the following facilities if one or more TRUs 
operate within the facility fence line or legal property boundary:  
(1) A Refrigerated Warehouse or Distribution Center, with a building size 
greater than or equal to 20,000 square feet; or 
(2) A Grocery Store, with a building size greater than or equal to 15,000 square feet; or 
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 (3) A Seaport Facility; or 
(4) An Intermodal Railyard. 
“Applicable Facility Operator” means any person who leases, operates, 
controls, or supervises an applicable fac ility. An applicable facility may have 
more than one applicable facility operator. 
“Applicable Facility Owner” means the person legally holding title (or its 
equivalent) to an applicable facility. An applicable facility may have more than 
one applicable facility owner. An applic able facility owner who leases or rents 
the applicable facility to another party may delegate the responsibilities in this 
regulation to the applicable facility oper ator (e.g., the lessee). The applicable 
facility owner shall notify CARB and the app licable facility operator in writing of 
this delegation. 
“Applicable Facility Owner/Operator” means a requirement applies to the 
owner and/or operator of an applicable facility, as determined by agreement or 
contract between the parties if the two are separate business entities. 
(7) “B100 Biodiesel Fuel” means 100% biodiesel fuel derived from vegetable 
oil or animal fat and complying with American Society for Testing Materials 
(ASTM) D 6751-02 and commonl y or commercially known, sold, or represented 
as “neat” biodiesel or B100. B100 biodiesel fuel is an alternative diesel fuel. 
(8) “B100 Biodiesel-Fueled” (compression-ignition engine) means a 
compression-ignition engine that is fueled by B100 biodiesel fuel. (9) “Broker” means a person, other than a motor carrier or an employee or 
agent of a motor carrier, that as a prin cipal or agent sells, offers for sale, 
negotiates for, or holds itself out by solic itation, advertisement, or otherwise as 
selling, providing, or arranging for,  transportation by motor carrier for 
compensation. (10) ”Business” means an entity organized for profit including, but not limited 
to, an individual, sole proprietorship , partnership, limited liability partnership, 
corporation, limited liability company, joint venture, association or cooperative; 
or solely for purposes of the Prompt  Payment Act (Government Code 927 et 
seq.), a duly authorized nonprofit corporation. 
(11) “California-based shipper” means a shipper that operates a facilitythe 
State of California and does not include Indian Country in California where wholesale freight is located prior to its transportation. 
(12) “California-based receiver” means a receiver that operates a facility in 
California where wholesale freight is receivedunder Indian or federal jurisdiction. 
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 (13) “California-Based TRUs and TRU Gen Sets” means TRUs and TRU gen 
sets equipped on trucks, trailers, shipping containers, or railcars that a 
reasonable person would find to be regularly assigned to terminals within California. 
“CARB” means the California Air Resources Board.  
(14) “CARB Diesel Fuel” means any diesel fuel that is commonly or 
commercially known, sold, or represented as diesel fuel No. 1-D or No. 2-D, 
pursuant to the specification for Diesel Fuel Oils D975-81 and meets the 
specifications defined in 13 CCR 2281, 13 CCR 2282, and 13 CCR 2284 . 
“CARB Online System” means a CARB online system that TRU and applicable 
facility owners or owner/operators shall report information to for the purposes of this regulation. The CARB online system may be found at: https://arber.arb.ca.gov. 
(15) “Carbon Monoxide (CO)” means a colorless, odorless gas resulting from 
the incomplete combustion of hydrocarbon fuels. (16) “Carrier” means “motor carrier”. 
(17) “Certification” means the obtaining of an Executive Order for a new off-
road compression-ignition engine family  that complies with the off-road 
compression-ignition emission standar ds and requirements specified in title 13 
California Code of Regulations, section 2423. A “certified engine” is an engine 
that belongs to an engine family that has received a certification Executive 
Order. 
(18) “Certification Data” means the ARBCARB Executive Order number and 
related exhaust emission data for ea ch test cycle mode used to certify the 
engine family and obtain the certification level shown in the certification 
Executive Order. Such data includes moda l exhaust emissions data for nitrogen 
oxides, nonmethane hydrocarbons, carb on monoxide, and particulate matter 
includes, as a minimum, torque, engine speed, weighting factor, power, mass emission rate (grams per hour), and certification test fuel. 
“Class I Railroad” is a railroad that is defined as Class I by the Surface 
Transportation Board. 
(19) “Compression Ignition (CI) Engine” means an internal combustion engine 
with operating characteristics 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. 
(20) “Consignee” (see receiver). 
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 (21) “Consignor” (see shipper). 
(22) “Cryogenic Temperature Control System” means a heating and cooling 
system that uses a cryogen, such as liquid carbon dioxide or liquid nitrogen that 
is routed through an evaporator coil that  cools air blown over the coil. The 
cryogenic system uses a vapor motor to drive a fan and alternator, and a 
propane-fired heater superheats the carbon dioxide for heating and defrosting. 
Electrically driven fans may be used inst ead of a vapor motor and heating and 
defrost needs may be met by using electric heaters and/or vehicle engine 
coolant. 
(23) “Delegation” means entrusting by contract another party to act on the 
owner’s behalf without forfeiture of any rights or property. (24) “Deterioration Factor (DF)” means a factor that is applied to the 
certification emission test data to represent emissions at the end of the useful 
life of the engine. Separate DFs apply to each measured pollutant, except that 
a combined NMHC+NOx DF applies to engines that do not use aftertreatment 
devices. Decreasing emissions over time would not be allowed to offset increasing emissions of the other pollutant in this combined DF. 
(25) “Diesel Fuel” means any fuel that is  commonly or commercially known, 
sold, or represented as diesel fuel, incl uding any mixture of primarily liquid 
hydrocarbons - organic compounds consist ing exclusively of the elements 
carbon and hydrogen - that is sold or  represented as suitable for use in an 
internal combustion, compression-ignition engine. 
(26) “Diesel-Fueled” means fueled by diesel fuel or CARB diesel fuel in whole 
or in part, except as allowed for a pilot ignition source under the definition for 
“alternative fuel”. 
(27) “Diesel Oxidation Catalyst (DOC)” means the use of a catalyst to 
promote the oxidation processes in diesel ex haust. Usually refers to an emission 
control device that includes a flow-th rough substrate where th e surfaces that 
contact the exhaust flow have been catalyzed to reduce emissions of the 
organic fraction of diesel particulates, gas-phase hydrocarbons, and carbon monoxide. 
(28) “Diesel Particulate Filter (DPF)” means an emission control technology 
that reduces PM emissions by trapping the particles in a flow filter substrate. 
Periodically the collected particles are either physically removed or oxidized 
(burned off) in a process called regeneration. 
(29) “Diesel Particulate Matter” means the particles found in the exhaust of 
diesel-fueled CI engines. Diesel PM may agglomerate and adsorb other species 
to form structures of complex physical and chemical properties. 
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 (30)“Dispatch” means to coordinate delivery, pickup, and drop-off schedules
of vehicles; and monitor the delivery of freight from these vehicles.
(31)“Dispatched driver” means the driv e
r of a truck or tractor-trailer
combination that has been dispatched by a motor carrier, freight broker or
forwarder, shipper, or receiver.
(32)“Driver” means a person who physically operates a truck or tractor.
Drivers may also be an owner or an oper ator. Drivers are not railroad engineers.
(33)“Dual-Fuel Engine” means an engine designed to operate on a
combination of alternative fuel, such  as compressed natural gas (CNG) or
liquefied petroleum gas (LPG), and convention al fuel, such as diesel or gasoline.
These engines have two separate fuel systems, which either inject both fuels
simultaneously into the engine combustio n chamber or fumigate the gaseous
fuel with the intake air and inject the liquid fuel into the combustion chamber.
(34)“Effective model year” or “effective engine model year” is an alternative
model-year designation (see definition of “model year”) for a new replacement
engine, rebuilt replacement engine, or flexibility engine when the engine does
not meet, at the time of manufacture, the most stringent emission tier standard
for a new engine in effect for the hor sepower rating of the engine. When an
engine is manufactured to meet a less s tringent prior-tier emissions standard
than is currently in effect, the effective model year is the last year that the prior-
tier emission standard was in effect. Table  1 lists the tier standards that apply to
TRUs and TRU gen sets and the corresponding effective model years.
Table 1: Effective Model Year 
Prior-Tier Engine Emissions Standard Tier Standard Effective Years Effective Model Year 
Tier 1, 25-50 Hp (trailer) 1999-2003 2003 
Tier 1, under 25 Hp (truck) 2000-2004 2004 
Tier 2, 25-50 Hp (trailer) 2004-2007 2007 
Tier 2, under 25 Hp (truck) 2005-2007 2007 
Tier 4i, 25-50 hp (trailer) 2008-2012 20121 
(35)“Electric-Standby-Equipped TRU” means a TRU that is equipped with an
integral diesel-fueled internal co
mbustion engine and electric-powered motor
and the refrigeration system may be driv en by either the diesel-fueled internal
combustion engine or the integral electric motor.
(36)“Electronic Tracking System” means a system that meets the following
criteria:
1 Effective model year applies for this tier only after Tier 4f becomes effective in 2013 for 25 to less than 
50 hp engines. 
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 (A)(1) The tracking device mustshall acquire, at a minimum, date, time, TRU 
engine hour meter reading, and location  data at a rate of at least one 
reading per minute, with no more than 10 minutes data gap. 
(B)(2) The tracking device mustshall be capabl e of determining if the TRU or 
TRU gen set location is within California and determining the TRU engine 
run time in California for each day. 
(C)(3) The tracking records mustshall be collected by an independent entity 
with no business relationship to the owner  or operator of the TRU or TRU 
gen set being tracked, other than to provide the tracking service. The data shall be stored on a server that  is secure from tampering and 
inaccessible to the TRU or TRU gen set  owner or operator, other than to 
download reports over the Internet . An inspector shall have free access 
to download reports from this website  over the Internet that show the 
TRU or TRU gen set engine operation in California for each day. 
(37)“Emergency” means any of the following times:
(A)(1) A failure or loss of normal power service that is not part of an “interruptible service contract” (see definition in section 2477.4);.” 
(B)(2) A failure of a facility’s internal power  distribution system, provided the 
failure is beyond the reasonable  control of the operator;. 
(C)(3) When an affected facility is placed  under an involuntary “rotating 
outage” (see definition in section 2477.4)..” 
(D)(4) When the President of the United States or the Governor of the State of 
California declares a state of emergen cy related to any type of disaster 
where TRU-equipped trucks or trailers provide foodservice to incident responders, including but not limited to, forest fires and earthquakes. 
(E)(5) When the National Interagency Fire Center dispatches mobile catering 
service businesses with TRU-equipped trucks or trailers to provide foodservice to incident responders located in California. 
(6)When the Executive Officer has dete rmined that an emergency event
arising from sudden and reasonably unforeseen natural disaster such as earthquake, flood, fire, or other unf oreseen events that threaten public 
health and safety has occurred that requires the immediate temporary operation TRUs or TRU gen sets. 
(38)“Emissions Control Group” has the same meaning as defined in title 13
CCR, section 2701
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  (39)“Emission Control Strategy” means an y device, system, or strategy
employed with a diesel-fueled CI engine that  is intended to reduce emissions.
Examples of emission control strategies include, but are not limited to,
particula
te filters, diesel oxidation catalysts, selective catalytic reduction
systems, alternative fuels, fuel additiv es used in combination with particulate
filters, alternative diesel fuels, and combinations of the above.
(40)“Emissions Rate” means the weight of a pollutant emitted per unit of
time (e.g., grams per second).(41)“Executive Officer” means the Executive Officer of the California Air
Resources Board or his or her delegate.
(42)“Facility” means any facility where TRU-equipped trucks, trailers,
shipping containers or railcars are l oaded or unloaded with perishable
goods. This includes, but is not limited to, grocery distribution centers,food service distribution centers, cold storage warehouses, and
intermodal facilities. Each business entity at a commercial development isa separate facility for the purposes of this regulation, provided the
businesses are “independently owned and operated” (see definition in
section 2477.4).
(43)“Facility Control (of TRUs or TRU Gen Sets)” means the TRUs or TRU gen
sets located at the facility are owned or leased by the facility, its parentcompany, affiliate, or a subsidiary, or under contract for the purpose of
providing carrier service to the facility, and the TRUs’ or TRU gen sets’arrival, departure, loading, unloading,  shipping and/or receiving of cargo
is determined by the facility, parent  company, affiliate, or subsidiary (e.g.
scheduled receiving, dispatched shipments).
(44)“Fischer-Tropsch Diesel Fuel” See “ul tra-low-aromatic synthetic diesel
fuel”.
(45)“Flexibility engine” means an engine installed in new equipment by an
original equipment manufacturer under the Transitional Program for
Equipment Manufacturers in accordance with title 40 Code of FederalRegulations (40 CFR) sections 89 .102 and 1039.625, and title 13 CCR
section 2423(d). Such engines shall use the “effective model year”designation for purposes of compliance with this subarticle, except asallowed under section 2477.5(b)(5)(A).
“Fleet” means one or more TRUs or  TRU gen sets, owned by a person, 
business, military installation, or governme nt agency operating in California and 
subject to this regulation. A fleet does not include TRUs that do not operate in California. 
(46)“Freight Broker” means “broker”, as defined herein.
14  
  
 
 
 
 
 
 
 
 
 
 (47)“Freight Forwarder” means a person holding itself out to the general
public (other than as a pipeline, rail, motor, or water carrier) to provide
transportation of property for co
mpensation  and in the ordinary course of its
business does the following:
(A)(1) Assembles and consolidates, or provides for assembling and 
consolidating, shipments and performs or provides for break-bulk and distribution operations of the shipments; 
(B)(2) Assumes responsibility for t he transportation from the place of receipt to 
the place of destination; and 
(C)(3) Uses for any part of the transportation a motor carrier or rail carrier. 
(48)“Fuel Additive” means any substance designed to be added to fuel or
fuel systems or other engine-related engine  systems such that it is present in-
cylinder during combustion and has an y of the following effects: decreased
emissions, improved fuel economy, increased performance of the engine; orassists diesel emission control strategies in decreasing emissions, or improvingfuel economy or increasing performance of the engine.
(49)“Generator Set (gen set)” means a CI engine coupled to a generator
used as a source of electricity.“Global Warming Potential (GWP)” me ans the 100-year GWP value first 
published by the Intergovernmental Panel  on Climate Change (IPCC) in its 
Fourth Assessment Working Group 1 Report (AR4) (IPCC, 2007); and if not 
contained in AR4, then the GWP Value means the 100-year GWP value 
published by the IPCC in its Fifth A ssessment Working Group 1 Report (AR5) 
(IPCC 2013). 
"Grocery Store” means a retail facility that  sells food products. This includes, 
but is not limited to establishments commonly known as supermarkets, food 
stores, grocery stores, food wareho uses, and any other food merchandising 
stores. 
(50)“Highway” has the same meaning as defined in California Vehicle Code
section 360.
"Hybrid Cryogenic Temperat ure Control System” means a temperature control 
system that uses a cryogenic temperature control system in conjunction with a 
conventional TRU. 
(51)“Hybrid electric TRU” means a TRU that is powered by an integral diesel-
fueled internal combustion engine coupled to an electric generator that
provides electric power to an electric motor-driven refrigeration system and
fans within the same housing and is designed to control the environment of
15  
  
 
 
 
 
 
 
 temperature sensitive products that ar e transported in trucks and refrigerated 
trailers. Hybrid electric TRUs may be ca pable of both cooling and heating. 
(52) “Hybrid Cryogenic Temperature Contro l System” means a temperature 
control system that uses a cryogenic temperature control system in 
conjunction with a conventional TRU. 
(53) “Independently Owned and Operated” means a business concern that 
independently manages and controls the day-to-day operations of its 
own business through its ownership and management, without undue 
influence by an outside entity or person that may have an ownership 
and/or financial interest in the management responsibilities of the applicant business or small business. 
(54) “Intermodal Facility” means a facility involved in the movement of goods 
in one and the same loading unit or vehicle which uses successively several 
modes of transport without handling of the goods themselves in changing 
modes. Such a facility is typically involved in loading and unloading refrigerated shipping containers and trailers to and from railcars, trucks, and ocean-going ships. 
“Intermodal Railyard” means an intermodal facility owned or operated by a 
Class I Railroad. 
(55) “Interruptible Service Contract” means any arrangement in which a 
nonresidential electrical customer agr ees to reduce or consider reducing its 
electrical consumption during periods of peak demand or at the request of the 
System Operator in exchange for co mpensation, or assurances not to be 
blacked out or other similar non-monetary assurances. 
(56) “In-Use TRU, TRU gen set, or engine” means a TRU, TRU gen set, or 
engine that is not a “new” TRU, TRU gen set, or engine. (57) “Low Emission TRU (LETRU or L) ” means a TRU or TRU gen set that 
meets the performance standards des cribed under section 2477.5(a)(1) 
and (2). 
(58) “Manufacturer” means a business as defined in Government Code § 
14837(c). “Military Installation” has the same meaning as defined in title 10 United States 
Code § 2801(c)(4). 
(59) “Military tactical support equipment (TS E)” means equipment or vehicles 
that meetsmeet military specifications, are owned or operated by the U.S. 
Department of Defense and/or the U.S.  military services, and are used in 
16  
 
 
 combat, combat support, combat service support, tactical or relief operations, 
or training for such operations. 
(60) “Model Year (MY)” means the following: 
(A)(1) The designation used for engines manufactured to meet the emissions 
tier standard in effect for new engines at time of manufacture (see alternative designation, “effective model year, defined above); and 
(B)(2) The diesel-fueled engine manufacturer’s annual production period, which includes January 1st of a calendar year, or if the manufacturer has no annual production period, the calendar year. 
(61) “Motor Carrier” means a person prov iding motor vehicle transportation 
for compensation. 
(62) “New TRU, TRU Gen Set, or Engine”  means any TRU, TRU gen set, or 
engine that has never been subject to a retail sale or lease to an “ultimate 
purchaser” (see definition in section 2477.4)..” 
(63) “Nitrogen Oxide (NOx)” means comp ounds of nitric oxide (NO), 
nitrogen dioxide (NO
2), and other oxides of nitrogen. Nitrogen oxides are 
typically created during combustion processes and are major contributors to 
smog formation and acid deposition. 
(64) “Non-California-Based TRUs and TR U Gen Sets” means TRUs and TRU 
gen sets that are equipped on or used in tru cks, trailers, shipping containers, or 
railcars that a reasonable person would find to be regularly assigned to 
terminals outside of California and operate in California from time to time for 
the purpose of transporting perishable goods into or out of the state. 
(65) “Non-methane Hydrocarbons (NMHC)” means the sum of all 
hydrocarbon air pollutants except meth ane. NMHCs are precursors to ozone 
formation. 
“Non-operational” means one of the following: 
(1) Any TRU that is removed or separat ed from the truck, trailer, shipping 
container, or railcar on which it wa s originally mounted. This does not 
include TRU gen sets that are not attached to a shipping container or 
trailer chassis. 
(2) Any trailer TRU housing that remains attached to a trailer, but the fuel tank and battery have been removed and a label with the word 
“NONOPERATIONAL” has been affixed or  attached to the housing in 
letters that contrast sharply with the color of the TRU housing and may 
be seen from 50 feet during daylight ho urs when the vehicle is stationary.  
17  
  
 
 
 
 
 
 
 
  (3) Any truck TRU housing that remains attached to a truck, but the positive 
and negative battery cables, fuel suppl y and return lines, and condensate 
drain line have been removed so that there are no visible ancillary connections to the TRU housing and a label with the word 
“NONOPERATIONAL” has been affixed or  attached to the housing in 
letters that contrast sharply with the color of the TRU housing and may 
be seen from 50 feet during daylight ho urs when the vehicle is stationary. 
(4) Any TRU that has no engine or fuel in jection system installed, making the 
engine incapable of being started and a label with the word 
“NONOPERATIONAL” has been affixed or  attached to the housing in 
letters that contrast sharply with the color of the TRU housing and may 
be seen from 50 feet during daylight ho urs when the vehicle is stationary. 
(5) TRU gen sets that have been quarantined in a designated area that is 
separated from compliant TRU gen sets by a cordon or barrier with signs 
that read “NONCOMPLIANT – DO  NOT OPERATE IN CALIFORNIA”. 
Bright red tags shall be affixed to the TRU gen set control panel at all 
times while in California that read: “NONCOMPLIANT – DO NOT 
OPERATE IN CALIFORNIA”. TRU gen sets may be stored in a shipping container in lieu of being quarantined in a cordoned area. 
(66) “Nonretail Delivery or Pick-up Point”  means wholesale perishable goods 
distribution facilities or businesses in the supply chain prior to retail facilities or 
businesses. This includes, but is not limit ed to, food manufacturing facilities, 
shipper warehouses, transfer points, distribution centers, cold storage 
warehouses, and intermodal facilities where perishable goods are loaded or 
unloaded. 
(67) “Operate” means to start, cause to function, program the temperature 
controller, select an operating program or otherwise control, fuel, monitor to 
assure proper operation, or keep in oper ation. A TRU that is  operational (e.g.., 
capable of being operated) shall be consider ed to operate if it is in California. 
(68) “Operator” means any person (as defined),, party or entity that operates 
a TRU or TRU gen set for the purpo ses of transporting perishable goods, 
excluding an employee driver and third party maintenance and repair service, 
and including but not limited to a manuf acturer, producer, supplier, carrier, 
shipper, consignor, consignee, receiver, di stribution center, or warehouse of 
perishable goods. An operator may also be the driver if it is also the owner 
(e.g.., independent owner-operator). 
(69) “Original equipment manufacturer (OEM)” means any person that 
originally manufactured new equipment for sale in commerce. This does not 
include a dealer who receives new equipment for sale in commerce. 
18  
  
 
 
 
 
 
 
 
 (70) “Owner” means, except as modified by paragraphs (A1), (2 ) or (B3) 
below, the person legally holding title (o r its equivalent) to the TRU or TRU gen 
set, or either the person (see definition) registered as the owner or lessee of a 
vehicle by the California Department of Motor Vehicles or its equivalent in 
another state, province, or country, as evidenced on the vehicle registration 
document carried in the vehicle to which the TRU is attached, unless such 
person, can clearly demonstrate, with written documentation, that another person (e.g., a lessee) is financially responsible for the maintenance of the TRU 
or TRU gen set, including responsibility for installing and maintaining the 
emissions control technologies on the TRU or TRU gen set, and registering the TRU with the California Air Resources Board’s Equipment Registration (ARBER) 
system, as required by this subarticle .. An owner may also be a driver or 
operator. 
(A)(1) (A)Banks, other financial lending institutions, or other entities engaged 
in the act of financing TRUs are not owners, for the purposes of this 
subarticle unless they otherwise have an obligation to comply with this 
regulation (e.g., contractually respo nsible for the maintenance of a TRU 
under a sales or lease agreement). 
(B)(2) (B)For a TRU-equipped truck or trailer, or TRU gen set owned by the 
federal government and not registered  in any state or local jurisdiction, 
the owner means the department, agency,  branch, or other entity of the 
United States, including the United States Postal Service, to which the 
vehicles in the fleet are assigned or which have responsibility for maintenance of the vehicles. 
(3) For a TRU-equipped truck or trailer, or  TRU gen set that is rented or 
leased: 
(A) The owner shall be presumed to be the rental or leasing entity for 
purposes of compliance with section 2477.5, if: 1. The rental or lease agreement is for a period of less than 
one year; or 
2. The rental or lease agreement is for a period of one year or 
longer, unless the terms of the rental or lease agreement or 
other equally reliable evidence identifies the party 
responsible for compliance with  State laws that apply to 
TRUs to be the renting operator or lessee. 
(71) “Owner/Operator” means a requirement applies to the owner and/or 
operator of a TRU or TRU gen set, as determined by agreement or contract 
between the parties if the two are separate business entities. 
19  
  
 
 
 
 
 
 
 
 
 (72) “Parent Company” means a company that has a controlling interest in 
another company, usually through o wnership of more than one-half the 
voting stock. 
(73) “Particulate Matter (PM)” means the particles found in the exhaust of CI 
engines, which may agglomerate and adsorb other species to form structures of 
complex physical and chemical properties. 
(74) “Person” means an individual, corporation, business trust, estate, trust, 
partnership, limited liability company, association, joint venture, government, 
governmental subdivision, agency, or instru mentality, public corporation, or any 
other legal or commercial entity. 
(75) “Prior-Tier Replacement Engine” means a new replacement engine 
manufactured under title 40 CFR, section 89.1003 and 1068.240, and title 13 
CCR, section 2423(j), as those sections e xisted on August 31, 2012, that meets 
a prior tier of the new engine emissions st andards than the tier of standards 
currently in effect at the time of manufacture. 
(76) “Rail Carrier” means a person providing common carrier railroad 
transportation for compensation, but do es not include street, suburban, or 
interurban electric railways not operat ed as part of the general system of rail 
transportation. 
“Railcar TRU” means a TRU designed to control the environment of 
temperature sensitive products in a railcar. 
(77) “Rated Brake Horsepower” means the power delivered, according to the 
statement of the engine manufacturer, at the rated speed. (78) “Real Emission Reductions” means that an action is taken that results in 
reductions in the PM emission rate of an in-use engine (e.g. a VDECS is 
installed that reduced the PM emi ssions rate by more than 50%). 
(79) “Receiver” means the person that receives shipped goods, cargo, or 
commodities. 
(80) “Refrigerated Trailer” means a trailer van, railcar, or shipping container 
equipped with a TRU or TRU gen set. Pu rsuant to Health and Safety Code 
section 39618, refrigerated trailers are mobile sources and shall be regulated by 
the ARBCARB on a statewide basis. (81) “Repower” means to replace an existing engine in a vehicle or piece of 
equipment with another engine that is within the same category as the 
original engine and that is certified to emissions standards that are more stringent than the emission standards of the original engine (e.g. replacing a Tier 1 engine with a Tier 2 or later engine). 
20  
  
 
 
 
 
 
 
 
 “Refrigerated Warehouse or Distribution Ce nter (WHDC)” means a facility with 
cold storage used for the reception and storage of products. This includes but 
is not limited to cold storage warehouses, packing houses, cross-dock facilities, 
and 3rd Party Logistic centers. 
(82) “Retail Delivery Point” means facilities or businesses where perishable 
goods are delivered to retail businesses that sell these goods to end users. This 
includes, but is not limited to, grocery stores, convenience stores, drug stores, 
restaurants, and prison or school cafeterias. 
(83) “Rotating Outage” means a controlled involuntary curtailment of 
electrical power service to consumers as  ordered by the system operator - see 
definition in section 2477.4. “Seaport Facility” means any non-m ilitary independent marine terminal or 
operational seaport where the seaport functions as a marine terminal operator. (84) “Semitrailer” means a “Semitrailer” as defined in section 550 of the 
California Vehicle Code. 
(85) “Shipper” means the person, party,  or entity who usually owns or 
supplies the commodities transported by a carrier, or that has possession of 
freight prior to its transportation. This may include, but is not limited to, food 
manufacturers, processers, packing plants , temporary cold storage facilities, 
and distribution centers. 
“Statement of Accuracy” means the person responsible for submitting 
information under the TRU Regulation submits and signs the following 
statement along with the information provided: “I certify under penalty of 
perjury under the laws of the State of California that the information provided is true, accurate, and complete.” 
"Square Footage" means for properties owned and operated by one business 
entity, the total square footage of all bu ildings on that property, as calculated 
from the building floor plan(s) or bluepr int(s) archived by the local permitting 
agency or records office. For businesses leasing all or part of a building, the 
square footage shall be the usable area, as specified in the lease agreement. 
(86) “System Operator” means one of the several organizations that control 
energy in California. System  operators include, but are not limited to, the 
California Independent System Operator, the Los Angeles Department of Water 
and Power, the Imperial Irrigation District, the Sacramento Municipal Utility 
District. 
(87) “Terminal” means any place where a TRU or TRU gen set equipped 
truck, trailer, shipping container, railcar or TRU gen set is regularly garaged, 
21  
  
 
 
 
 
 
 
  
 
 
 maintained, operated, or dispatched from, including a dispatch office, cross-
dock facility, maintenance shop,  business, or private residence. 
(88) “Terminal Operator” means the person that owns a terminal. 
“Third Party Agreement Confirmation Information” means the information used to notify CARB that responsibility for r eporting a TRU or TRU gen set to CARB 
has been delegated to the lessee or to a consultant. 
(89) “Tier 4 Nonroad/Off-road Emission Standards” means the emission 
standards and associated procedures pr omulgated by U.S. Environmental 
Protection Agency in “Control of Emissi ons of Air Pollution from Nonroad 
Diesel Engines and Fuel; Final Rule” (Vol. 69, No. 124 Fed. Reg. pp. 38957-
39273 (June 29, 2004). 
(90) “Third Party Agreement Confirmation Information” means the 
information used to notify ARB that responsibility for registering a TRU in ARBER has been delegated to the lessee or to a consultant. 
“Trailer” means a semitrailer. 
“Trailer TRU” means a TRU that is mounted on or in a trailer or domestic 
shipping container (DSC) that can be attached and detached to a tractor, 
commonly referenced together as a “tractor-trailer.” 
(91) “Transport Refrigeration Unit (TRU )” means refrigeration systems 
powered by integral internal combustion engines designed to control the 
environment of temperature sensitive products that are transported in trucks 
and refrigerated trailers. TRUs may be capable of both cooling and heating. 
“Truck TRU” means a TRU that is mounted on or in a truck cargo box that is 
permanently attached to a truck, in  contrast to a detachable trailer. 
(92) “Trailer” means a semitrailer. 
(93) “TRU Generator Set (TRU gen set)” means a generator set that is 
designed and used to provide electric power to electrically driven refrigeration 
units of any kind. This includes, but is not limited to gen sets that provide 
electricity to electrically powered refrigeration systems for semi-trailer vans and 
shipping containers. 
(94) “Ultimate Purchaser” means with respect to a new TRU, TRU gen set, or 
engine, the first person who in good faith purchases a new TRU, TRU gen set, 
or engine for purposes other than resale. 
22  
  
  
  
  
  
 
  
 
 
 
 
 (95) “Ultra-Low-Aromatic Synthetic Diesel Fuel” means fuel produced from 
natural gas, coal, or biomass by the Fischer-Tropsch gas-to-liquid chemical 
conversion process, or similar process that meets the following properties: 
Table 2 
Property ASTM Value 
Sulfur Content (ppmw) D5453-93 <1 
Total Aromatic Content (wt %) D5186-96 <1.5% 
Polynuclear Aromatic CotentContent (wt %) D5186-96  <0.5% 
Natural Cetane Number D613-84 >74 
(96) “Ultra-Low Emission TRU (ULETRU or U)” means a TRU or TRU gen set 
that meets the performance standards described under subparagraphs 
2477.5(ac)(1) and 2477.5(ac)(2) or that uses an “alternative technology” in 
accordance with subparagraph 2477.5(ac)(3). 
“Vehicle Owner” means the person registered as the owner or lessee of a 
vehicle by the California Department of Motor Vehicles or its equivalent in 
another state, province, or as evidenced on the vehicle registration document 
carried in the vehicle to which the TRU is  attached. For example, the owner of 
the truck or tractor pulling a TRU equipped trailer or container. 
(97) “Verification Classification Level” means the classification assigned to a 
Diesel Emission Control Strategy by the Executive Officer as defined in the Verification Procedure, Warranty and In -Use Compliance Requirements for In-
Use Strategies to Control Emission fr om Diesel Engines (13 CCR Sections 2700-
2710). PM reductions correspond as follo ws: Level 1: ≥25%; Level 2: ≥50%; 
Level 3: ≥85% or 0.01 g/hp-hr. 
(98) “Verified Diesel Emission Control Strategy” (VDECS) means an emission 
control strategy designed primarily for t he reduction of diesel particulate matter 
emissions that has been verified per the Verification Procedure, Warranty and 
In-Use Compliance Requirements for In-Use Strategies to Control Emissions 
from Diesel Engines (13 CCR Sections 2700-2710) . Examples of diesel retrofit 
systems that may be verified include, but  are not limited to, diesel particulate 
filters, diesel oxidation catalysts, fuel  additives (e.g.., fuel-borne catalysts), 
alternative fuels (e.g.., dual fuel), alternative diesel fuels, and combinations of 
the above. 
“Zero-Emission Fueling Infrastructure” mean s a fueling system that provides the 
appropriate fuel type to power a ZE  truck TRU (e.g., electric charging 
infrastructure or cryogenic fueling tank and dispenser).  “Zero-Emission Truck TRU” (ZE truck TRU)  means a truck refrigeration system 
whose operation results in zero exhaust emissions of any criteria pollutant (or 
precursor pollutant) or  GHG under any possible operational modes or 
23  
  
 
 
 
  
  conditions. The ZE truck TRU may draw power from the truck or stored energy 
source that is recharged by the truck on ly if the truck produces zero exhaust 
emissions while operating. The stored ene rgy source may not be recharged by 
a CI engine coupled to a generator as a source of electricity. Weight of the 
stored energy source does not alone qualify as “a decrease in fuel efficiency.” For example, a ZE truck TRU on a diesel -powered truck may draw power from a 
battery that in turn is charged by a sola r cell so long as the ZE truck TRU does 
not also draw power from the truck’s internal combustion engine.  
(b) The terms “lease,” “leased,” “lessor,” a nd “lessee” mean the same as “rental 
agreement,” “rented,” “owner of rented vehicle,” and “renter,” respectively. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013 and 43018, 43019.1, Health and Safe ty Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843109.1, Health 
and Safety Code. 
§ 2477.5. Requirements for Owners or Owner/Operators. 
(a) In-Use Performance Standards: In accord ance with the schedule set forth below 
in paragraph (b),Refrigerant Requirements. The term TRU as used in this 
subsection (a) refers only to truck TRUs, ZE truck TRUs, trailer TRUs, and DSC 
TRUs. Railcar TRUs and TRU gen sets are ex empt from the requirements of this 
subsection (a). 
(a) Beginning December 31, 2022, no owner or owner/operator shall operate a 
TRU or TRU gen setcause to be operated in California, a TRU with a 
manufacture date after December 31, 2022,  unless it meets the in-use emission 
category performance standards set forth below. 
(1) In-Use performance standard categories for TRU and TRU gen set 
enginesTRU uses a refrigerant with ra ted brake horsepowera GWP value 
less than 25 horsepower (<25 hp) are shown in Table 3, along with the 
engine certification standards or the level of Verified Diesel Emission 
Control Strategy (VDECS) (see definition) that is necessary to qualify for 
each categoryequal to 2,200, or uses no refrigerant at all. 
Table 3: <25 HP TRU and TRU Gen Set  In-Use PM Performance Standards 
(2) Beginning December 31, 2022, no o wner or owner/operator shall 
operate or cause to be operated in California, a TRU with a manufacture 
date after December 31, 2022, with  an unreadable or inadequately 
maintained TRU OEM supp lied refrigerant label. 
24  
  
  
  (b) Zero-Emission Truck TRU Requirements. The term TRU as used in this 
subsection (b) refers only to truck TRUs . Trailer TRUs, DSC TRUs, railcar TRUs, 
and TRU gen sets are exempt from the requirements of this subsection (b). 
(1) Beginning December 31, 2023, no o wner or owner/operator shall 
operate or cause to be operated in California, any truck TRU in the 
owner’s truck TRU fleet, unless the fleet meets or exceeds the required ZE truck TRU fleet percentages specified in Table 3. 
TRU owners shall replace their diesel-powered truck TRUs with ZE truck TRUs in accordance with the fleet percentages and phase-in compliance schedule specified in 
Table 3. The required number of ZE truck TRUs is based on the truck TRU fleet size reported to CARB on December 31, 2023 or December 31 of each year, whichever 
reported truck TRU fleet size is greater.  A TRU owner may downsize their truck TRU 
fleet size only if the TRU owner has not purchased additional direct-drive refrigeration units, in which the compressor is powered from the truck’s diesel engine, to replace 
the original diesel-powered units being sold or retired. The required number of ZE 
truck TRUs for a given year shall be calculated using the following formula: 
"Minimum Number of ZE Truck TRUs = Requi red ZE Truck TRU Fleet % × Total Truck 
TRU Fleet"; Where: 
Minimum Number of ZE Truck TRUs is the required minimum number of ZE truck TRUs 
in an owner’s fleet as of the specified Compliance Date in Table 3. 
Required ZE Truck TRU Fleet percentage (%) is lis ted in the second column of Table 3.  
Total Truck TRU Fleet is the maximum of the December 31, 2023 Fleet Size or the 
Total Current Fleet Size; Where: 
Number of Truck TRUs is the sum of all di esel-fueled truck TRUs plus all ZE truck TRUs 
in the owner’s truck TRU fleet. 
December 31, 2023 Fleet Size is the number of truck TRUs reported to CARB as of 
December 31, 2023. 
Total Current Fleet Size is the Number of Tr uck TRUs in the owner’s truck TRU fleet as 
of the applicable Compliance Date in Table 3. 
Table 3: Phase-in Compliance Sc hedule for ZE Truck TRU Fleets 
In-Use Emission C Engine Certificati o LevelCompliance Required ZE Truck TRU 
Date as of VDECS Fleet Percentage 
Equipped 
withDecember 31 
25  
  
  
 
 
 
 
 
 
 
 
 
  
 
  2023 15% 
Level 2 Low Emission TRU (LETRU or L) 2024 0.302% 
2025Ultra-Low Emission TRU 45% 
Level 3 (ULETRU or U) 2026 NA360% 
2027 75% 
2028 90% 
2029 and thereafter 100% 
(A)Compliance with the in-use performance standards can be
achieved by:
(2)Downsizing a fleet. A TRU owner may have a smaller “Total Truck TRUFleet” than otherwise required for a given Compliance Date if, between 
January 1 and December 31, inclusive, of the prior Compliance year, the TRU owner has not purchased any addi tional direct-drive refrigeration 
units in which the compressor is po wered from the truck’s diesel engine, 
to replace the original diesel-powered units being sold or retired.  
(A)Prior to the Compliance Date, the TRU owner shall report to CARB
their intent to downsize their fleet, the proposed Number of Truck 
TRUs in the fleet, any TRUs acquired or sold in the prior Compliance Year, and all information required by section 2477.20(f). 
(B)The downsized Number of Truck TRUs shall replace the Total
Truck TRU Fleet number going forward. 
(3)If the calculated ‘number of ZE Truck TRUs’ is not equal to a wholenumber, the owner shall round up to a whole number when the fractional 
part of the required number of ZE truck  TRUs is equal to or greater than 
0.5, and round down if less than 0.5. For example: 
(A)A fleet consisting of one truck TRU that operates in California shall
contain one ZE truck TRU by December 31, 2026. 
2 The Engine Certification value for the Low Emission TRU category corresponds to the Tier 4 
Nonroad/Off-road Emission Standards that are to go into effect in 2008. 
3 Not Applicable - must choose another compliance option. 
26  
  
 
 
 
 
 
 
 
  
   
   
 
 
 
 
 (B) A fleet consisting of two truck TRUs that operate in California shall 
contain one ZE truck TRU by December 31, 2024 and two ZE truck 
TRUs by December 31, 2027. 
(c) In-Use Performance Standards for MY 2022 and Older TRU and TRU Gen Set Engines. The term TRU as used in this subsection (c) refers only to trailer TRUs, DSC TRUs, railcar TRUs, and TRU gen sets.  Truck TRUs are exempt from the 
requirements of this subsection (c). In a ccordance with the schedule set forth 
below in paragraph (c)(4), no owner or  owner/operator shall operate or cause to 
be operated in California, a MY 2022 and older TRU or TRU gen set engine, unless it meets one of the in-use emission category performance standards set forth in (1) to (3) below. 
1.(1) Use a certified engine that meets the Ultra-Low Emission TRU 
(ULETRU or U) in-use PM perform ance standard of 0.02 g/hp-hr
4 or less. 
The engine shall meet the applicab le nonroad/off-road emissions 
standards for all regulated pollutants and the in-use PM performance standard. Only engines for which certification data and deterioration 
factors have been provided to ARBCARB shall be considered when 
determining compliance. The Executiv e Officer willshall consider such 
submittals, publish, and make available a list of qualifying engines. 
2.(2) Equipping the engine with the requireda Level of3 VDECS. 
(2) In-Use performance standard categories for TRU and TRU gen set 
engines with rated brake horsepower greater than or equal to 25 
horsepower (≥25 hp) are shown in Table 4, along with the engine 
certification standards or the level of VDECS that is necessary to qualify 
for each category. 
Table 4: ≥25 HP TRU and TRU Gen Set In-Use PM Performance Standards 
In-Use Emission Category Engine Certification (g/hp-hr) Level of VDECS Equipped with 
Level 2Low Emission TRU (LETRU or L) 0.225 
Ultra-Low Emission TRU 
Level 3(ULETRU or U) 0.026 
(A) Compliance with the in-use performance standards can be achieved by: 
4 The Engine Certification value for the Ultra-Low Emission TRU category corresponds to the Tier 4 
“final” Nonroad/Off-road Emission Standards for greater than 25 horsepower engines. 
5 The Engine Certification value for Low Emission TRU category corresponds to the “Interim” Tier 4 
Nonroad/Off-road Emission Standards that are to go into effect in 2008. 
6 The Engine Certification value for the Ultra-Low Emission TRU category corresponds to the Tier 4 
“final” Nonroad/Off-road Emission Standards that will go into effect in 2012 or 2013. 
27  
  
 
 
 
 
 
 
 
 
 
 1. Using a certified engine meeting the applicable 
nonroad/off-road emissions standards for all regulated 
pollutants and the in-use PM performance standard. Only 
engines for which certification data and deterioration 
factors have been provided to ARB shall be considered when determining compliance. The Executive Officer will 
consider such submittals, publish, and make available a list 
of qualifying engines. 
2. Equipping the engine with the required Level of VDECS. 
(3) As an alternative to meeting the ULETRU in-use performance standardsstandard in sectionssection 2477.5(ac)(1) andor (2), an 
owner/operator may operate a MY 2022 and older TRU or TRU gen set in 
California meeting one of the Alternative Technology  options listed 
below. Alternative Technologies qualify to meet the ULETRU in-use performance standard only if the TRU or TRU gen set is operated under 
the conditions included in the description listed below. 
(A) Hybrid Electric TRU or electric standby-equipped TRU mayshall 
qualify as an Alternative Technology, provided all of the following 
conditions are met: 
1. The TRU shall not operate under diesel engine power while 
at a nonretail facility, except during: 
a. An emergency (as defined);; 
b. Normal ingress, egress, and yard maneuvering, 
limited to 5 minutes per move ment inside the facility 
fencelinefence line or property boundary; or 
c. Unit/engine pre-trip inspections, troubleshooting diagnostics, and post-repair  check-out (however, this 
exception does not apply to the initial van chill-down before loading); 
2. The facility or facilities that a TRU is normally based or frequents to load or unload perishable goods shall be equipped with electric power pl ugs located in the parking 
areas and loading spaces and the TRU shall be plugged into these power plugs during initial chill-down and whenever 
the refrigerated van or container contains perishable 
products; 
28  
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 3. All nonretail delivery and pick-up points (as defined) that 
the E/S--equipped TRU frequents to load or unload goods 
shall be equipped with electric power plugs if the van load 
includes perishable goods. Electric power plugs shall be 
located in the parking areas and loading spaces and the TRU shall be plugged into these power plugs during initial 
chill-down and whenever the refrigerated van or container 
contain perishable goods and may need to operate; 
4. The TRU engine run time at retail delivery points (as defined) shall not exceed 30 minutes, otherwise electric 
power plugs are also required at  those retail delivery points 
and mustshall be used to prevent engine operations that exceed 30 minutes at the delivery point; 
5. The TRU shall be equipped with non-resettable engine hour meters and electric power use hour meters; 
6. At least 50 percent of an owner’s hybrid electric or electric 
standby-equipped TRUs shall be equipped with an 
electronic tracking systems by December 31, 2012, and 100 
percent of an owner’s hybrid electric or electric standby-equipped TRUs shall be equipped with electronic tracking systems by December 31, 2013; and 
7. The TRU shall be registered in ARBERreported to CARB in accordance with section 2477.5(eg). 
(B) Hybrid cryogenic temperature control systems mayshall qualify as an Alternative Technology, provided all of the following conditions 
are met: 
1. The TRU does not operate unde r diesel engine power while 
at a nonretail facility, except during: 
a. An emergency; 
b. Normal ingress and egress yard maneuvering; or 
c. Unit/engine pre-trip inspections, diagnostics, and 
repair operations; 
2. The TRU engine run time at retail delivery points (as 
defined) shall not exceed 30 minutes, otherwise purely 
cryogenic temperature control shall be used at those retail 
delivery points to prevent engi ne operations that exceed 30 
minutes at the delivery point; 
29  
  
  
 
 
 
 
 
 
 
 
 
 3. The TRU shall be equipped with non-resettable engine hour 
meter and cryogenic system use hour meter; 
4. The TRU shall be equipped with an electronic tracking system; and 
5. The TRU shall be registered in ARBERreported to CARB in accordance with section 2477.5(eg). 
(C) Alternative-fueled engines (see definition in section 2477.4).. If the 
engine is a CI engine, a VDECS is required. 
Note: If the engine is not a compression ignition diesel fueled engine, this regulation would not apply, but the engine may have to  meet other emission  standards (e.g.., 
large spark-ignited engine standards if >25 hp). 
(D) Fuel exclusively with an alternative diesel fuel (see definition in 
section 2477.4) that has been ver ified as a VDECS, provided it is 
used in accordance with the requirements of section 2477.5(hj)(1) and the alternative diesel fuel contains no conventional diesel or CARB diesel fuel, except in trace amounts. 
(E) Power by fuel cells. If a reformer is used with diesel fuel as the source of hydrocarbons, then emissions mustshall be evaluated 
and verified through the Verification Procedure Warranty and In-
Use Compliance Requirements for In-Use Strategies to Control 
Emissions from Diesel Engines (13CCR section 2700 - 2710) . 
(F) Equip with any other system appr oved by the Executive Officer to 
not emit diesel PM or increase public health risk while at a facility. 
(b)(4) In-Use Compliance Dates: for MY 2022 and Older TRU and TRU Gen Set 
Engines. In-use compliance dates are based upon the engine model year 
or effective model year (as defined in section 2477.4, as listed below, 
except as allowed in subparagraphs 2477.5(b)(5)(A) and (C)
7,8.. 
Compliance dates may also be extended if the requirements of 
subparagraphs 2477.5(f), (g), (k),  (lm) or (mn) are met. 
(1) NoBeginning December 31, 2022, no owner or owner/operator shall 
operate or cause to be operated in California, a 2001MY 2022 and older 
model year (MY) TRU or TRU gen set enginein California, unless it meets 
the in-use performance criteria set forth in section 2477.5(a) for 
7 Further explanation is provided in section 2477.5(i). 
8 Compliance dates may also be extended if the requir ements of subparagraphs 2477.5(f), (g), (k), (l), or 
(m)are met. 
30  
  
 
 
 
 
 
 
 
 
 
 
 
 
 (A) LETRU on or before December 31, 2008, and 
(B) ULETRU on or before December 31, 2015, as shown in Tables 5 
and 6. 
(2) No owner or owner/operator shall operate a 2002 MY TRU or TRU gen 
set engine in California unless it meets the in-use performance criteria set forth in section 2477.5(a) for 
(A) LETRU on or before December 31, 2009, and 
(B) ULETRU on or before December 31, 2016, as shown in Tables 5 
and 6. 
(3) No owner or owner/operator shall operate a 2003 MY TRU or TRU gen 
set engine in California unless it meets the in-use performance criteria set forth in section 2477.5(a) for 
(A) LETRU on or before December 31, 2010, and 
(B) ULETRU on or before December 31, 2017, as shown in Tables 5 
and 6. 
(4)(A) No owner or owner/operator shall operate a 2004 MY and 
subsequent MY TRU or TRU gen set engine in California unless it 
meets the in-use performance criteria set forth in section 2477.5(ac) for ULETRU on or befor e December 31st of the seventh 
year past the engine’s model year, as shown in Tables 5
9 and 68, 
with the following exception. For example: 
(A) Less than 25 hp model year 2004 engines shall meet the in-use performance criteria set forth in section 2477.5(a), shown in Table 
5, for: 
1. LETRU on or before December 31, 2011, and 
2. ULETRU by December 31, 2018. 
9 Model years 2013 and subsequent (not shown in ta bles 5 and 6), shall meet ULETRU by December 
31st of the seventh year after the engine model year or effective model year, except as allowed under 
section 2477.5(b)(5). 
31  
  
 
 
 
 
 Table 5: <25 HP TRU and TRU Gen Set Engines In-Use Compliance Dates10,11 
Table 6: ≥25 HP TRU and TRU Gen Set Engines In-Use Compliance Dates12,13 
10 Compliance date is December 31st of the complia nce year shown. “MY” means model year. Black 
shaded areas are years with no in-use performance standard requirements since in-use compliance year 
precedes engine model year. Dark shaded areas wi thout letter codes have no in-use performance 
standard requirements, pending in-use compliance date. “L” means must meet LETRU in-use 
performance standards. “U” means must meet  ULETRU in-use perf ormance standards. 
11 TRUs and TRU gen sets with MY 2005 engines and subsequent MY engines shall be required to 
comply with ULETRU requirements by the end of th e seventh year after the model year or effective 
model year, except as allowed under subsection 2477.5(b)(5)(A). 
12 Compliance date is December 31st of the complia nce year shown. “MY” means model year. Black 
shaded areas are years with no in-use performance standard requirements since in-use compliance year 
precedes engine model year. Dark shaded areas wi thout letter codes have no in-use performance 
standard requirements, pending in-use compliance date. “L” means must meet LETRU in-use 
performance standards. “U” means must meet  ULETRU in-use perf ormance standards. 
13 TRUs and TRU gen sets with MY 2004 engines and subsequent MY engines shall be required to 
comply with ULETRU requirements by the end of th e seventh year after the model year or effective 
32  
  
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 (5) Requirements for TRUs or TRU gen sets that are equipped with flexibility 
engines andNo owner or owner/operator shall operate or cause to be 
operated in California. 
(A)1. Flexibility engines installed in TRUs and TRU gen sets manufactured prior to March 7, 2011, and operated in California shall meet the in- use performance standards of 
section 2477.5(a) by December  31st of the seventh year 
after the, a MY 2020 TRU or TRU gen set engine’s 
manufacture year instead of the effective model year 
provided the TRU or TRU gen set owner registers the flexibility engineequipped TRU or TRU gen set in ARBER in 
accordance with section 2477.5(e) by May 6, 2011, unless it meets ULETRU on or before December 31, 2027. 
(B) To allow TRU and TRU gen set owner s to meet the registration 
requirements of subsection (A) above, the original equipment manufacturer shall by April 6, 2011: 
1. Provide the following unit and flexibility engine information 
to ARB in electronic format: 
a. TRU or TRU gen set manufacturer; 
b. TRU or TRU model name; 
c. TRU or TRU gen set serial number; 
d. TRU manufacture date; 
e. Engine manufacturer; 
f. Engine Family; 
g. Engine manufacture year; and 
h. Engine serial number. 
2. Notify the TRU or TRU gen set  owners in writing that: 
a. The unit they own is equipped with a flexibility or 
TPEM engine; and 
model year, except as allowed under section 2477.5(b)(5 )(A). Tier 4 final standards go into effect in 2013 
which would meet ULETRU in-use performance standard s in the 25 hp to less than 50 hp category. If 
engines installed by original equipment manufacturers do not meet ULETRU in 2013, then section 2477.5(b)(5)(C) applies. 
33  
  
 
 
 
 
 
 b. The owner must register the TRU or TRU gen set that 
is equipped with a flexibility engine in ARBER by May 
6, 2011. 
3. Provide directly or through its dealers instructions and assistance on registration in ARBER to all owners of TRUs and TRU gen sets equipped with flexibility engines that 
request such help, which shall include specific instructions 
and assistance that ensures that information entered in ARBER is consistent with what appears on the unit label and 
engine emissions label, including the model year. 
(C) The following requirements shall apply to flexibility engines 
installed in TRUs and TRU gen set s manufactured after March 7, 
2011, and operated in California: 
1. The owner of a TRU or TRU gen set that is operated in 
California shall comply with the in-use performance standards set forth in section  2477.5(a) by December 31st 
of the seventh year after the engine’s effective model year. 
2. The original equipment manufacturer shall provide a written 
disclosure to the ultimate pu rchaser of a TRU or TRU gen 
set that is equipped with a flexibility engine prior to its sale 
in accordance with section 2477.13(a)(3). 
(6)(B) The manufacture year of the TRU unit may be used instead of the TRU engine model year to determine the TRU ATCM in-use 
performance standards that must be met and the related 
compliance dates; however, this ex ception only applies if the unit 
manufacture year shown on the TRU unit label is no more than one 
year later than the engine model year shown on the TRU engine 
emissions label. If the difference between the engine model year 
on the engine emissions label a nd the unit manufacture year is 
greater than one year, then the engine model year shall be used in 
accordance with subsectionssubse ction 2477.5(b)(1), (2), (3), and 
(c)(4)(A). 
(A)1. If the owner complies with the TRU ATCM in-use 
performance standard by retrofitting with a VDECS, the 
engine model year shown on the engine emissions label shall be used to determine engine compatibility with the 
VDECS, in accordance with t he Executive Order for that 
VDECS. 
34  
  
 
 
 
 
 
 
 
 
 
 (B)2. If the owner of a TRU is required to apply for an ARB 
Identification Number (IDN),report the TRU to CARB,  in 
accordance with section 2477.5(eg), the engine model year that is shown on the engine emissions label shall be entered 
on the IDN application in provided as the engine model 
yearspace. 
(d)Replacements Due to PM Emission Standard for MY 2023 and Newer TRU and 
TRU Gen Set Engines. The term TRU as used in this subsection (d) refers only to 
trailer TRUs, DSC TRUs, railcar TRUs, a nd TRU gen sets. Truck TRUs are exempt 
from the requirements of this subsecti on (d). Beginning December 31, 2022, no 
owner or owner/operator shall operate or cause to be operated in California, a MY 2023 and newer TRU or TRU gen set engi ne, unless it meets a PM emission 
standard of 0.02 g/hp-hr or lower. 
(1) For TRU and TRU gen set engines with  rated brake horsepower <25 hp, 
compliance with the PM emission standard shall be achieved by using a 
certified engine meeting the PM emission standard. Only engines for 
which certification data and deteriora tion factors have been provided to 
CARB shall be considered when determining compliance. The Executive Officer shall consider such submittals, publish, and make available a list 
of qualifying engines. 
(2) For TRU and TRU gen set engines with  rated brake horsepower ≥25 hp, 
compliance with the PM emission standard shall be achieved by using a 
certified engine meeting the applicable nonroad/off-road emissions 
standards for all regulated pollutants and the PM emission standard. 
Only engines for which certification da ta and deterioration factors have 
been provided to CARB shall be considered when determining 
compliance. The Executive Officer shall consider such submittals, publish, 
and make available a list of qualifying engines. 
(c)(e) VDECS FailuresRequirements. 
(1) VDECS Installation. Before installi ng a VDECS on a TRU or TRU gen set, 
the owner or owner/operator shall ensure that: (A) The VDECS is verified for use on the TRU or TRU gen set engine, 
as described in the Executive Order for the VDECS.  
(B) Use of the TRU or TRU gen set is consistent with the conditions of the Executive Order for the VDECS.  
(C) The VDECS is installed in a verified configuration. 
35  
  
 
 
 
 
 
 
 
 
 (D) The engine to be retrofitted shall be in its original certified 
configuration, free of excess oil consumption, shall not have 
malfunctioning fuel delivery systems, or any other mechanical condition that may impair the proper functioning of the VDECS. 
(E) The VDECS label is visible after installation.  
(2) VDECS Maintenance. If an owner or owner/operator installs a VDECS to 
meet the requirements of section  2477.5(c), the VDECS shall remain 
installed until the VDECS fails, is damaged, or is replaced with a similar or 
higher level VDECS. The owner or owner/operator shall ensure that the 
VDECS and TRU or TRU gen set engine are properly maintained as recommended by the respective manufacturers. 
(3) Failure or Damage of a VDECS. In the event of a failure or damage of a VDECS, the following conditions shall apply: 
(1)(A) If a VDECS fails within its warranty period, the owner/operator of 
the TRU or TRU gen set must replac e it with the same VDECS or a 
higher verification classific ation level, if available. 
(2)(B) If a VDECS fails outside its warranty period and a higher verification classification level VDECS is available, then the 
owner/operator of the TRU or TRU gen set shall upgrade to the 
highest level VDECS required under paragraphs 2477.5(a)(1) and 2477.5(a)(2c) that is determined to be cost-effective by the Executive Officer. 
(d)(f) In-Use Recordkeeping and Reporting. In-use recordkeeping and reporting shall be completed by the owner or operator  in accordance with the following: 
(1) An owner that is also an operat or, shall complete and maintain the 
operator report in accordan ce with section 2477.6(a). 
(2)(1) An owner that has elected to comply by using a verified alternative diesel fuel in accordance with section 2 477.5(c)(3)(D), shall comply with the 
recordkeeping requirements in section 2477.5(hj)(1). 
(3)(2) An owner that has elected to comply by using a hybrid electric TRU or electric standby-equipped TRU must meet the following recordkeeping, 
and reporting requirements for each unit.in accordance with section 2477.5(c)(3)(A) or a hybrid cryogeni c temperature control system in 
accordance with section 2477.5(c)(3)(B), shall use an electronic tracking system that meets the recordkeeping requirements of section 2477.20(d). 
36  
  
 
 
 
 
 
 
 
 
 
 (A) Beginning November 14, 2012, manua l recordkeeping is required 
for all such units until automated monitoring, recordkeeping, and 
reporting is required under the phased compliance schedule in 
subparagraph (B), below. Manual records shall include the 
following, for each TRU that is equipped with electric standby or hybrid electric: 
1. ARB Identification Number of the unit, issued under section 
2477.5(e); 
2. Date; 
3. Address of each stationary location lasting more than 5 minutes. This record may be a location code for each 
stationary location, provided t he owner or operator also 
provides a cross-reference of location codes with the 
corresponding physical addresses; 
4. Time of arrival and departure, and the elapsed time calculated from those readings to show the duration of the stationary position; 
5. Engine hour meter readings ta ken at arrival and departure 
and the elapsed time calculated from those readings to show the TRU engine run time while the vehicle is at the stationary location; and 
6. Electric shore power driven electric motor hour meter readings taken at arrival and departure and the elapsed 
time that electric shore power drove the refrigeration 
system while the vehicle is at the stationary location. 
(B) Automated monitoring, recordkeeping, and reporting is required 
for at least 50 percent of an owner’s TRUs by December 31, 2012 
and 100 percent of an owners TRUs by December 31, 2013. Automated monitoring, recordkeeping and reporting is required 
with an electronic tracking system (as defined in section 2477.4) and shall include data that includes the following for each stationary location lasting more than 5 minutes (300 seconds): 
1. ARB Identification Number of the unit, issued under section 
2477.5(e); 
2. Date; 
37  
  
 
 
 
 
 
 
 
 
 
 
 3. Address of each stationary location lasting more than 5 
minutes (300 seconds). This record may be the GPS 
coordinates and a location code for each stationary 
location, provided the owner or  operator also provides a 
cross-reference of location codes with the corresponding 
physical addresses; 
4. Time of arrival and departure, and the elapsed time calculated from those readings to show the duration of the stationary position; 
5. Engine hour meter readings ta ken at arrival and departure 
and the elapsed time calculated from those readings to 
show the TRU engine run time while the vehicle is at the 
stationary location; 
6. Electric motor hour meter readings taken at arrival and departure and the elapsed time that electric shore power is powering the refrigeration system while the vehicle is at the stationary location; and 
7. The electronic tracking system shall generate a report that 
lists all stationary locations lasting more than 5 minutes 
where the TRU engine operated for more than 30 minutes, resulting in a violation. 
(C) Records shall be kept available for a minimum of three (3) years and shall be compiled and made available to ARB upon request. 
(D) Record submittals shall include the owner’s or responsible official’s 
signature after the statement: “I  certify under penalty of perjury 
under the laws of the State of California that the information provided is true, accurate, and complete.” 
(4) Hybrid cryogenic temperature control recordkeeping. An owner that has 
elected to comply by using a hybrid cryogenic temperature control 
system must meet the following auto matic monitoring, recordkeeping, 
and reporting requirements with an electronic tracking system (as 
defined in section 2477.4). Automated recordkeeping shall include data 
that includes the following for each stationary location lasting more than 300 seconds (5 minutes): 
(A) ARB Identification Number of the unit, issued under section 
2477.5(e); 
(B) Date; 
38  
  
 
 
 
  
 
 
 
 
 
 
 
 (C) Location: GPS coordinates or coded, with full address in code 
look-up table; 
(D) Time of arrival and departure, and the elapsed time calculated 
from those readings to show the duration of the stationary 
position; 
(E) Engine hour meter readings taken at arrival and departure and the 
elapsed time calculated from those readings to show the TRU engine run time while the vehicle is stationary; 
(F) Cryogenic system use hour meter readings taken at arrival and 
departure and the elapsed time calc ulated from those readings to 
show the cryogenic system run time while the vehicle is stationary; 
(G) The electronic tracking system shall generate a report that lists all stationary locations lasting more  than 5 minutes where the TRU 
engine operated for more than 30 minutes, resulting in a violation; 
(H) Records shall be kept available for a minimum of three (3) years and shall be compiled and made available to ARB upon request; and 
(I) Record submittals shall include the owner’s or responsible official’s 
signature after the statement: “I  certify under penalty of perjury 
under the laws of the State of California that the information provided is true, accurate, and complete.” 
(e) ARB Identification NumberingTRU Reporting Requirements. Identification numbers (IDN) will be issued to help ex pedite the inspection procedure and 
prevent shipping delays
14 
(1)(g) California-based TRUs The term TRU as used in this subsection (g) refers to 
TRUsand TRU gen sets:, as well as ZE tru ck TRUs used to comply with section 
2477.5(b). 
(A)(1) On or before January 31, 2009, owners or owner/operators ofshall report 
all California-based TRUs and TRU gen sets subject to this regulation 
shall apply for an ARB IDN for all California-based TRUs or TRU gen sets operated by the owner or owner/operator to CARB by submitting an 
application that includesproviding the information listed belowin section 2477.20(f) for each TRU. 
14 IDNs are obtained by registering a TRU or TRU gen set in the ARB’s Equipment Registration (ARBER) 
system. 
39  
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 1. Company Information a. Company/business name, address, and contact 
information for the responsible official (e.g. title, phone number, email address). 
b. Company/business tax identification number/federal 
employer identification number (EIN) or equivalent for other country (e.g. Canadian Business Number). 
2. Rental or lease status. Indicate if the unit is a rental unit (no 
contract term) or a lease unit (under contract term, typically 
more than one year) 
3. Applicant identity indication. Indicate who is filling out 
application, either: 
a. The owner (or an employee of owner), or 
b. A third party entering the application information 
under a third party agreement between the owner or lessor and a consultant or lessee. 
4. TRU or TRU gen set unit information: 
a. Unit Type: 
i. Truck TRU; 
ii. Trailer TRU; 
iii. Refrigerated railcar TRU; 
iv. Refrigerated domestic shipping container 
TRU; or 
v. TRU generator set. 
b. Unit manufacturer, 
c. Unit model, 
d. Unit model year, and 
e. Unit serial number. 
5. Other TRU or TRU generator set identifying numbers. 
Provide all that apply: 
40  
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 a. If unit is installed on a truck or trailer, provide: 
i. Vehicle Identification Number (VIN), and 
ii. Vehicle license number, country of issuance, 
and state or province of issuance; 
iii. Unique Bureau International de Container 
(BIC) Code, if trailer is multimodal 
b. If unit is installed on refrigerated railcar, provide 
railcar reporting mark; 
c. If unit is installed on domestic refrigerated shipping container, provide unique BIC Code; 
d. If unit is a TRU gen set, provide unique BIC Code; 
e. Provide company equipment number if company has labeled the equipment. 
6. TRU status information. Indicate if the unit is: 
a. Active (unit is operational); 
b. Removed from service (unit is scrapped or inactive 
for foreseeable future); or c. Sold. If last registered owner sold unit, then they 
must provide: 
i. Date of sale, and 
ii. New owner’s company name, address, and 
contact information 
7. TRU engine information. Provide the following: 
a. Engine manufacturer; 
b. Engine model; 
c. Engine model year, or “MY”; 
d. Engine serial number; 
e. Engine power rating. Indicate either: 
41  
   
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 i. Under 25 hp (under 19 kW), or 
ii. 25 hp or greater (19 Kw or greater); 
f. Engine family; and 
g. Emissions standard tier that engine meets. 
8. Compliance status with in-use performance standards, 
under sections 2477.5(a) and (b). 
a. Indicate if the ULETRU Early Compliance Extension 
has been granted 
b. Indicate if compliance was achieved with an engine option: 
i. Indicate if the engine currently in the unit is an 
original engine; 
ii. Indicate if the engine currently in the unit is a new replacement engine and if so, provide: 
I. Emissions standard tier that the engine 
meets; and 
II. Installation date. 
iii. Indicate if the engine currently in the unit is a 
rebuilt replacement engine installed to comply 
with the in-use requirements and if so, provide: 
I. Emissions standard tier that the engine 
meets; 
II. Rebuild year; and 
III. Installation date. 
c. Indicate if compliance was achieved with VDECS 
retrofit, and if so: 
i. Provide the following from the VDECS label: 
I. VDECS manufacturer name; 
II. VDECS Family Name; 
42  
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  III. VDECS serial number; 
IV. VDECS manufacture year; and 
ii. Provide the VDECS installation date. 
d. Indicate if compliance was achieved by using an 
Alternative Technology option under section 2477.5(a)(3), and if so prov ide the type used and the 
date installed or employed: 
i. Electric standby-equipped TRU or hybrid 
electric TRU; ii. Hybrid cryogenic temperature controlled 
system; 
iii. Alternative-fueled engine; 
iv. Fueled exclusively with pure alternative diesel 
fuel; 
v. Powered by fuel cells; or 
vi. Other system approved by the Executive 
Officer. 
e. If compliance was achieved by replacing an engine or 
retrofitting with a VDECS, provide the installer’s 
company name, physical address, and contact information. 
9. Indicate what state or province that the TRU or TRU gen set is based in: 
a. California; or 
b. Outside of California. If based outside of California 
identify: 
i. U.S. state; 
ii. Mexican state; or 
iii. Canadian province. 
43  
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 10. Owner’s or responsible official’s signature, after the 
statement: “I certify under penalty of perjury under the laws 
of the State of California that the information provided is true, accurate, and complete.” 
(B) Applications shall be submitted by one of the following methods: 
1. Mail or deliver a physical report to ARB at the address listed 
immediately below: 
CALIFORNIA AIR RESOURCES BOARD 
STATIONARY SOURCE DIVISION (SSD/ARBER) P.O. BOX 2815 
SACRAMENTO, CA 95812 
2. Electronically submit through the ARBER website at: 
http://www.arb.ca.gov/arber/arber.htm 
3. Electronically submit by email to: arber@arb.ca.gov 
(2)TRUs and TRU gen sets On or befor e December 31, 2023, owners or 
owner/operators shall report all no n-California-based TRUs operated in 
California by the owner or owner/o perator to CARB by providing the 
information listed in section  2477.20(f) for each TRU. 
(C)(3) California-based TRUs added to an owner’s or owner/operator’s TRU 
operations after January 31, 2009 a nd non-California based TRUs added 
to an owner’s or owner/operator’s  operations after December 31, 2023 
shall be brought into compliance with  section 2477.5(e). An application 
shall be submitted to ARBg)(1) and (2) within 30 days of the unit entering the owner or owner/operator’s co ntrolor beginning operations in 
California. The owner or owner/operator shall request: 
1.(A) Requesting an ARB I.D. numberA CARB IDN for a new TRU or TRU 
gen setthat was not previously numbered, or 
2.(B) Requesting aA change in owner or owner/operator (or other pertinent application information) for used equipment for a TRU 
that already has an ARB I.D.a CARB IDN number. 
(D) Failure to apply or submittal of false information is a violation of this rule and subject to civil penalty. 
44  
  
 
 
 
 
 
 
 
 
 
 
 
 
 (4)If reported information for any TR U changes, then the owner or
owner/operator shall update the information within 30 days of those 
changes. 
(E)(5) On or before February 1, 2009, the Executive Officer shall begin issuing identification numbers to TRU and TRU gen set owners or owner/operators for each unit based in  California for which a complete 
application has been filed.TRU reported to CARB. The number willshall include a 2-digit prefix for model year (e.g.., 2001 model year would 
have a prefix 01); a 6-digit serial number and a check- digit. In the event 
that an operator applies for an early compliance certificate in accordance 
with section 2477.5(f), ARB will also issue a certificate which acknowledges early compliance per subparagraph 2477.5(f)(3). 
(F)(6) Within 30 days of receipt of the ARB-issued identification number, 
ownersCARB IDN, the owner or owner/operatorsoperator shall 
permanently affix or paint the iden tification numberCARB IDN on the 
TRUor TRU gen set chassis housing in clear view according to the 
following specification:specifications in section 2477.20(e). Beginning December 31, 2023, the requirement s of this subsection 2477.5(g)(6) 
shall be superseded by the TRU compliance label requirements in section 2477.5(i). 
1. The ARB identification number shall be preceded by the l etters “ARB”. 
2.
  Letters and numbers shall contrast sharply in color with the color of the 
background surface on which the letters are placed. 
3. The location of the I.D. number shall be as follows: 
a.Truck and trailer TRUs - both sides of TRU chassis hou sing. 
b.Rail car and shipping container TR Us - both sides of the TRU.
c.TRU gen sets - both sides of gen set housing. 
4. Letters and numbers shall be readily legible during daylight hours, from a 
distance of 50 feet (15.24 meters) while unit is stationary. 
5.Marking shall be kept maintained  in a manner that re
tains
the legibility required by t he subparagraph immediately
above.
(2)Non-California-based TRUs and TRU Gen Sets:
45  
  
 
 
 
 
 
 
 
 
 (A) Owners or owner/operators of non-California-based TRUs and 
TRU gen sets may voluntarily apply for ARB identification numbers 
for TRUs that are based outside of California but operate within 
California during the normal co urse of business. Non-California-
based owners or owner/operators may voluntarily submit the same 
application information listed above in subparagraph 2477.5(e)(1), 
above, using the same methods of submittal listed in subparagraph 2477.5(e)(1)(B), above. Upon application approval, 
ARB would issue identification numbers to the operator in accordance with subparagraph 2477.5(e)(1)(E), above. The non-California-based owner or owner/operator would then 
permanently affix or paint the iden tification number on the TRU or 
TRU gen set chassis in clear view, in accordance with 
subparagraph 2477.5(e)(1)(F), above. 
(h) TRU Operating Fees. The term TRU as used in this subsection (h) refers to TRUs and TRU gen sets, as well as ZE truck TRUs used to comply with section 2477.5(b). 
(1) Beginning December 31, 2023, the Ex ecutive Officer shall assess and 
collect fees from owners or owner/oper ators of TRUs that operate in 
California to recover the costs to t he Executive Officer administering the 
TRU ATCM as specified under section 2477.21(a). 
(i) TRU Compliance Labels. The term TRU as used in this subsection (i) refers to 
TRUs and TRU gen sets, as well as ZE tru ck TRUs used to comply with section 
2477.5(b). 
(1) Beginning December 31, 2023, the TR U compliance label requirements 
in this subsection (i) shall supersede the IDN labeling requirements in 
section 2477.5(g)(6). 
(2) Beginning December 31, 2023, upon ver ifying the information reported 
under section 2477.5(g) and all TRU o perating fees have been received in 
accordance with section 2477.5(h), the Executive Officer shall issue two compliance labels for each TRU. 
(3) Within 30 days of receipt of the CARB compliance labels, owners or owner/operators shall affix the label s in clear view, correct side up, 
un-obstructed; and kept and maintained in a manner that retains legibility. The location of the label shall be as follows: 
(A) Truck and trailer TRUs - both sides of TRU chassis housing. 
(B) Rail car and shipping container TRUs - both sides of the TRU. 
(C) TRU gen sets - both sides of gen set housing. 
46  
  
 
 
 
 
 
  
 
 
 (4) TRU compliance labels shall be valid for three (3) years from date of 
issuance. 
(5) TRUs with pending enforcement actions shall not be issued a new compliance label until they are settled. 
(3) Owners or owner/operators may use alternative unique equipment identification markings instead of affixing an ARB IDNthe CARB compliance label, provided the following conditions are met: 
(A) The owner or owner/operator regi sters the TRU or TRU gen set in 
ARBER and enters the unique equip ment number in ARBER. 
(B) The alternative identificati on number shall be truly unique. 
Examples of unique identification numbers include the Reporting 
Marks that are issued by the Amer ican Association of Railroads’ 
contractor, RailInc, for their UMLER system and the BIC Codes issued by Bureau International de Containers. Company 
equipment numbers that are not truly unique on a worldwide basis do not qualify. 
(C) Alternative identification numbers must be affixed or attached to 
both sides of the TRU gen set, shipping container (if the TRU is 
permanently attached), semitrailer, or railcar and meet all of the 
requirements of subparagraph 2477.5.(e)(1)(F). 
(D) The ARB IDN shall be used in the Operator Report under section 
2477.6(a). 
(f) Early Compliance with LETRU In-Use Performance Standards. 
(1) For 2002 and older MY TRU and TRU gen set engines, owners or 
owner/operators that meet the LE TRU in-use performance standard 
earlier than required in paragraph 2477.5(b) may apply to the Executive 
Officer for a delay in the ULETRU in -use performance standard. Except as 
provided below, early compliance would be achieved through any of the 
options available in paragraph 2477.5(a). 
(A) This delay would not be available to the owner or owner/operator 
if the engine manufacturer of the replacement engine is using the 
early compliance with engine emissi ons standards in U.S. EPA’s 
Averaging, Banking, and Trading Program (or California’s 
equivalent program). 
(B) Early compliance is conditioned upon real emission reductions (refer to definition in section 2477.4) occurring earlier than the applicable compliance deadline. 
47  
  
 
 
 
 
 
 
 
 
 
 
 
 (C) This delay may not be available to the owner or owner/operator if 
public funds were used for early compliance. The applicant shall 
disclose whether public funds were used for any portion of early 
compliance and what progra m the funding came from. 
(2) Early LETRU compliance with real emission reductions would allow specific units to delay compliance with ULETRU in-use performance 
standards by up to three years, a ccording to the rounding conventions 
and examples listed below. 
(A) Each year of early compliance with the LETRU in-use performance 
standards would be rewarded with 1 year delay in the ULETRU in-use performance standard. 
1. One full year early compliance qualifies for one full year 
delay in meeting ULETRU compliance. 
2. Two full years early compliance qualifies for two full years delay in meeting ULETRU compliance. 
3. Three full years early compliance qualifies for three full years delay in meeting ULETRU compliance. 
(B) A partial year of early LETRU compliance would be rounded to the nearest full year for the delayed ULETRU requirements. 
1. Early LETRU compliance of 183 days or more in a calendar 
year would count toward a one year ULETRU delay. 
2. Early LETRU compliance of 182 days or less in a calendar year would not count toward a ULETRU delay. 
(3) Upon receipt of an application to delay ULETRU compliance, the Executive Officer shall determine if the application demonstrates early 
compliance with LETRU in-use performance standards in accordance with 
section 2477.5(f)(1), and if the applic ation is approved, shall delay the in-
use ULETRU compliance date for specific TRUs and TRU gen sets 
operating in California in accordan ce with subparagraph 2477.5(f)(2). 
(4) Upon approval of the application,  ARB shall issue a certificate and ARB 
identification number in accordance with section 2477.5(e)(1)(E) which 
acknowledges early compliance with  LETRUrequirements and discloses 
the number of years delay granted, and resulting ULETRU compliance 
date. 
48  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 (5)(6) The owner or owner/operator shall maintain a legible copy of the 
certificate in a water-tight sleeve mounted inside the TRU or TRU gen set 
chassis housing. The owner or owner/operator shall paint the 
identification number in clear view in accordance with ofsection 
2477(e)(1)(F) on the specific TRU or TRU gen set that was granted the 
compliance extension..20(e)(6) are met. 
(g) ULETRU Extension for Compliance by Original Compliance Date 
(1) An owner of model year 2001 and older TRUs or TRU gen sets that complied by the original December 31, 2008, compliance date may 
qualify for a one year extension to the ULETRU compliance date, provided the following conditions are met: 
(A) The original engine was retrofit with a Level 2 VDECS, or 
(B) The original TRU was repowered with a replacement engine 
meeting either: 
1. Tier 4 final Non-Road/Off-Road Emission Standards, if the 
engine is rated at less than 25 hp, or 
2. Tier 4 interim Non-Road/Off-Road Emission Standards, if the engine is rated between 25 hp and less than 50 hp, or 
(C) The original TRU was replaced with a new unit equipped with an engine meeting either: 
1. Tier 4 final Non-Road/Off-Road Emission Standards, if the 
engine is rated at less than 25 hp, or 
2. Tier 4 interim Non-Road/Off-Road Emission Standards, if the engine is rated between 25 hp and less than 50 hp, and 
(D) The TRU or TRU gen set is registered in ARBER, the compliance information is complete and co rrect, and the IDN has been affixed 
to both sides of the TRU or TRU gen set housing. 
(2) Owner must apply for the ULETRU extension at least 90 days before the 
ULETRU compliance date by submitting an ARB application that includes 
the following information: 
(A) Owner name and Owner-Operator Number (OON); 
(B) The affected unit’s IDN; 
49  
  
 
 
 
 
 
 
 
 
  
 
 
 
  
 
 (C) A statement that the unit was in compliance on or before 
December 31, 2008, and the IDN ha s been affixed to both sides of 
the TRU or TRU gen set housing in accordance with section 
2477.5(e)(1)(F); 
(D) Documentation that demonstrates that the LETRU in-use standard 
was met before December 31, 2008; 
(E) In the case of a unit replacement, documentation on the old noncompliant unit that was replaced; and 
(F) Owner’s or responsible official’s si gnature, after the statement: “I 
certify under penalty of perjury under the laws of the State of 
California that the information provided is true, accurate, and complete.” 
(3) The owner or responsible official must submit an application for 
“ULETRU Extension for Compliance by the Original Compliance Date” to 
the Executive Officer by one of the following methods: 
(A) Mail or deliver to ARB at the address listed immediately below: 
CALIFORNIA AIR RESOURCES BOARD 
STATIONARY SOURCE DIVISION (ARBER/TRU) 
P.O. BOX 2815 SACRAMENTO, CA 95812 
(B) Electronically submit by email to: arber@arb.ca.gov; or 
(C) Electronically submit through ARB’s ARBER website at: 
http://www.arb.ca.gov/arber/arber.htm 
(4) Upon receipt of application for ULET RU extension, the Executive Officer 
shall determine if the application demonstrates the unit qualifies for ULETRU extension. 
(5) Upon approval of the applicatio n, the Executive Officer shall: 
(A) Change the “Compliant Through” date in ARBER; and 
(B) Notify the owner with a revised ARBER TRU Certification showing the new “Compliant Through” date. 
(h)(j) Fuel Requirements. 
50  
  
 
 
 
 
  
 
 (1) Owners or Owner/Operators Choosing to Use Alternative Diesel Fuels. 
Owners or owner/operators choosing to use alternative diesel fuels in 
compression ignition TRU and TRU gen set engines to meet the requirements of section 2477.5(ac) shall: 
(A) Maintain records that document exclusive use of the chosen fuel 
or additive for each affected engine and hours of engine 
operation. Appropriate records would be copies of receipts or 
invoices of appropriate fuel and/or fuel additive and engine hour 
meter logs. 
1. Records shall be kept available for a minimum of three (3) 
years and shall be compiled and made available to the ARBCARB upon request. 
(B) Use only fuel that is a VDECS alte rnative diesel fuel that contains 
no conventional diesel or CARB diesel fuel in TRUs or TRU gen sets operated in California. 
(C) Permanently affix a label in clear view near the fill spout that identifies the proper fuel that is  required to be in compliance. 
(D) In the event that the owner or o wner/operator decides to revert to 
using conventional diesel or CARB diesel fuel, the owner or owner/operator shall comply with the requirements of section 2477.5(ac) within 10 days of discontinuation of alternative diesel 
fuel use. Within 10 days of discontinuation, the owner or 
owner/operator shall notify the Execut ive Officer in writing of this 
change in fuel use and shall include an update to the compliance information submitted to ARBER submittedCARB to comply with 
sectionssection 2477.5(e), 2477.5(f), or 2477.6.g). 
(2) Owners or Owner/Operators that Retrofit TRUs or TRU Gen Sets with a VDECS. Owners or owner/operators th at retrofit TRUs or TRU gen sets 
with a VDECS that requires certain fuel properties to be met in order to achieve the required PM reduction or PM emissions shall only fuel the subject TRU or TRU gen set with fuel that meets these specifications 
when operating in the state of California. In addition, owners or 
owner/operators that choose a VDE CS that requires certain fuel 
properties to be met in order to pr event damage to the VDECS or an 
increase in toxic air contaminants, other harmful compounds, or in the 
nature of the emitted PM shall only fuel the subject TRU or TRU gen set 
with fuel that meets these specifications. 
(i)(k) Compliance by Replacing Engines. 
51  
  
 
 
 
 
 
 
 
 A new or rebuilt replacement engine shall m eet more stringent emissions standards 
than the original engine. The new or r ebuilt replacement engine must subsequently 
meet the in-use performance standard requ irements of section 2477.5(ac) by the 
compliance dates of section 2477.5(bc)(4), which are based on the new or rebuilt 
replacement engine’s model year or effe ctive model year (see definition).. 
(1) Current tier new replacement engines. Current tier new replacement 
engines shall use the engine model year  to determine requirements and 
compliance dates. The engine model year is shown on the engine emissions label if the engine is manuf actured when an emissions standard 
tier is in effect. Emissions label language examples include, but are not 
limited to: 
(A) “THIS ENGINE MEETS 2008 IN T. TIER 4 EMISSION 
REGULATIONS FOR U.S. EPA AND CALIFORNIA NONROAD CI 
ENGINES.” This label language indicates the engine is a current-
tier 2008 model year engine for the purposes of in-use requirements and registration. 
(B) “THIS ENGINE COMPLIES WITH U.S. EPA AND CALIFORNIA 
REULATIONS FOR 2009 M.Y. NONROAD AND 
STATIONARY/OFF-ROAD DIESEL ENGINES.” This label language 
indicates the engine is a current-tier 2009 model year engine for the purposes of in-use requirements and registration. 
(2) Prior tier new replacement engines.  Prior-tier new replacement engines 
shall use the effective model year (see definition) to determine 
requirements and compliance dates.  The manufacture year and the 
installation year of a prior tier replacement engine shall not be used to 
determine the in-use require ments and the compliance dates. Prior-tier 
new replacement engine emissions label s typically do not clearly show 
the effective model year, but provide dates that indicate the prior-tier 
emissions standard that the engine meet s. The year in the first sentence 
of the replacement engine emission label is the first year of the tier met. The date in the second sentence of the replacement engine label is the 
first day of the next tier standard. Table 1 in section 2477.4 and the following example of replacement engine emissions label language show how these labels shall be interpreted for this subarticle: 
52  
  
 
 
 
  
 
 
 (A) “THIS ENGINE COMPLIES WITH CALIFORNIA OFF-ROAD AND 
U.S.EPA NONROAD EMISSION REQUIREMENTS FOR 2004 
ENGINES UNDER 13 CCR 2423(j) AND 40 CFR 89.1003(b)(7). 
SELLING OR INSTALLING THIS ENGINE FOR ANY PURPOSE 
OTHER THAN TO REPLACE AN  OFF-ROAD ENGINE BUILT 
BEFORE JANUARY 1, 2008 M AY BE A VIOLATION OF 
CALIFORNIA AND FEDERAL LAW SUBJECT TO CIVIL PENALTY.” 
The first sentence includes the year 2004 (the first year of the tier). The second sentence indicates the next tier started on January 1, 
2008, so the last year of the tier the engine met would be 2007. 
The center column of Table 1 shows the effective years 2004 to 
2007 matches a Tier 2 engine in the 25-50 hp (trailer) category. 
(3) Rebuilt replacement engines. Rebuilt replacement engines must meet 
the requirements of section 2477.16. 
(A) Prior tier rebuilt replacement engines. If the rebuilt engine meets 
a prior tier emissions standard, then the effective model year (see 
definition) shall be used to determine the requirements and 
compliance dates. The rebuild year and the installation year of a 
prior tier replacement engine sha ll not be used to determine the 
in-use requirements and the compliance dates. 
(B) Current tier rebuilt replacement engines. It the rebuilt engine meets the tier standard that is currently in effect, then the model 
year is the year that the rebuild is completed and this year shall be used to determine the requirem ents and compliance dates. 
(j)(l) Mobile Catering Company Exemption Requirements. 
(1) The Executive Officer mayshall grant a one -year exemption to mobile 
catering companies for TRUs that are not compliant with the in-use 
performance standardsrequirements unde r sectionsections 2477.5(a), (b), 
(c), or (d) if the following conditions are met: 
(A) The mobile catering company mustshall be under contract with 
the National Interagency Fire Center to provide mobile catering 
food service to emergency inci dents for the year that the 
exemption would apply. 
53  
  
 
 
 
 
 
  
 
  
  
  (B) All California-based TRUs shall comply with the ARBER 
registration TRU reporting require ments under section 2477.5(eg) 
and have an ARBa CARB Identification Number (IDN) affixed to 
both sides of the TRU housing. A ll TRUs owned or leased by the 
mobile catering company that are based outside of California that 
the owner wants included in the mobile catering company 
exemption mustshall be registered  in ARBER reported to CARB in 
accordance with section 2477.5(eg). 
(C) The mobile catering company mustshall submit an application 
each year for a Mobile Catering Company Exemption to the Executive Officer by one of the following methods: 
1. Mail or deliver to ARB at the address listed immediately 
below: 
CALIFORNIA AIR RESOURCES BOARD 
STATIONARY SOURCE DIVISION (ARBER/TRU) 
P.O. BOX 2815 SACRAMENTO, CA 95812 
2. Electronically submit by email to: arber@arb.ca.gov; or 
3. Electronically submit through ARB’s ARBER website at: 
http://www.arb.ca.gov/arber/arber.htm 
(D) Applications for Mobile Catering Service Exemption shall includewith the following information: 
1. Business name; 
2. Business street address, state, zip code; 
3. Business phone number; 
4. Responsible official’s name; 
5. Responsible official’s mo bile phone number; 
6. Federal Tax Identification Number (EIN) and Owner-Operator Number (OON) issued to the owner by ARBER when they registered in ARBER. 
54  
  
 
 
 
 
 
 
 
 
  
 
 
 7. A list of ARB IDNs issued by ARBER for all TRUs that are to 
be included under the exemption. For TRUs that are not in 
compliance with the in- use standards required under 
section 2477(a) that do not ha ve ARB IDNs, provide the unit 
serial number instead of the IDN on this list; 
8. A copy of the mobile catering company’s contract with the 
National Interagency Fire Center shall be provided with the 
application; and 
9. Owner’s or responsible official’s signature, after the statement: “I certify under penalty of perjury under the laws of the State of California that the information provided is true, accurate, and complete.” 
(E)(C) .20(g).The owner shall update the application information within 
30 days of any changes to t he information submitted. For 
example, if the owner buys, sells, or leases TRUs, the IDN and unit serial number list required under subparagraph (j)(1)(D)7.section 2477.20(g)(7) shall be amended. 
(F)(D) The owner shall provide the driver with a copy of the current 
Mobile Catering Service Exemption that has been approved by 
the Executive Officer and the Mobile Food and Shower Service Request Form issued by the National Interagency Fire Center for the incident they are traveling to or from. 
(G)(E) During transit on California highwa ys, the driver mustshall, upon 
request: 
1. Present to the ARBCARB inspector the Mobile Catering 
Service Exemption that has been approved by the 
Executive Officer and the Mob ile Food and Shower Service 
Request Form issued by the National Interagency Fire 
Center, and 
2. Allow the ARBCARB inspector to inspect the TRU to confirm the Mobile Catering Service exemption applies to the equipment. 
(H)(F) All circumstances at the time of inspection shall be consistent with 
the Mobile Catering Service Exemption that has been approved 
by the Executive Officer and the Mobile Food and Shower Service Request Form issued by the National Interagency Fire Center. 
55  
  
 
 
  
 
 
 
 
 
 
 
 (I)(G) Mobile Catering Company Exemptions shall expire on 
December 31st of each year. Mobile catering companies shall re-
apply for this exemption annually. 
(k)(m) Compliance Extension for In-Use Performance Standards Based on 
Unavailability of Compliance Technology. 
(1) If there is no compliance technology available for a specific TRU or TRU 
gen set within six months of a compliance date, the Executive Officer 
may grant a one -year extension ofto the normal compliance 
deadline,date set forth in sections 2477. 5 (a), (b), (c), and (d), provided 
the following conditions are met: 
(A) A person or applicant must submi t a written application to the 
Executive Officer that The owner demonstrates the absence of any 
suitable compliance option that can be used on the specific 
equipment and the owner cannot otherwise meet the 
requirements of section 2477.5(a ), (b), (c), and (d) by the 
compliance dates of section 2477. 5(b). The application for and 
issuance of any extension pursuant to this subsection shall be subject to the following requirements:. 
1. Except for the units for which the extension is sought, the 
applicant shall demonstrate that all other units subject to the owner or operator’s direct control meet the requirements of sections 2477.5(a) and (b); 
2. The application shall be submitted to and received by the 
Executive Officer no later than six months before the 
compliance date of the engine for which the extension is requested; 
3. The application shall identify each unit and engine for which the extension is requested; 
4. For each engine identified in pa ragraph 2477.5(k)(1)(A)3., 
immediately above, the applicant shall provide a detailed description of the reasons and factors that serve as the 
basis for the applicant’s claim that no suitable control 
technologies are available. The description shall include, 
without limitation, detailed engineering diagrams and 
calculations that support the applicants claim that there are no suitable control technologies available. 
56  
  
 
 
 
 
 
 
 
 
 
 
 
 a. For a replacement engine to be determined suitable 
or unsuitable, the concerns that will be considered 
are if the replacement engine will physically fit and functionally perform in the equipment. 
5. Owners or responsible officials shall provide their signature, after the statement: “I certify under penalty of perjury 
under the laws of the State of California that the 
information provided is true, accurate, and complete.” 
6. The owner or responsible official must submit an application for Compliance Extension to the Executive Officer by one of the following methods: 
a. Mail or deliver to ARB at the address listed 
immediately below: 
CALIFORNIA AIR RESOURCES BOARD 
STATIONARY SOURCE DIVISION (ARBER/TRU) 
P.O. BOX 2815 SACRAMENTO, CA 95812 
b. Electronically submit by email to: arber@arb.ca.gov; 
or 
c. Electronically submit through ARB’s ARBER website at: http://www.arb.ca.gov/arber/arber.htm 
7.(B) The TRU or TRU gen set shall be registered in ARBERis reported to CARB as required under section 2477.5(eg). 
(C) The owner shall submit an application to CARB as required under section 2477.20(h). 
(B)(D) The Executive Officer may grant additional one-year extensions 
provided the same procedures are followed, as described in section 2477.5(k)(1), immediat ely above for each extension. 
(l)(n) Compliance Extension for In-Use Performance Standards Based on Delays Due 
to Private Financing, Equipment Manuf acture Delays, or Installer Delays. 
57  
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 (1) The Executive Officer mayshall grant a one-time, maximum four -month 
extension to the normal compliance da te set forth in section 2477.5(b) 
for meeting the in-use performance sta ndards set forth in sectionsections 
2477.5(a), (b), (c), and (d), provided certainthe following conditions are 
met: 
(A) The owner mustshall have ordered the compliance technology 
from the manufacturer no later than two months before the 
compliance date for VDECS retro fit compliance technologies and 
no later than four months befor e the compliance date for engine 
replacements, unit replacements , and trailer replacements, and 
the purchase order must be consistent with these limits;. 
(B) The TRU or TRU gen set is registered in ARBER;reported to CARB as required under section 2477.5(g). 
(C) An extensionThe owner shall submit an application is submitted beforeas required under 2477.20(i)  prior to the compliance 
deadline that explains in detail why a . 
(o) Compliance Extension Based on Delays Due to Installation of Zero-Emission Fueling Infrastructure. 
(1) The Executive Officer shall grant an annual extension in  compliance , up 
to a maximum of two years, to an owner for the ZE truck TRU 
requirements specified in section 2477.5(b) due to unforeseen, 
temporary, or extenuating circumstances outside of the owner’s or 
owner/operator’s control th at prevents the installation of zero emission 
fueling Infrastructure at the facility at which the truck TRU fleet is domiciled. 
(2) For the purposes of this subsection (o ), circumstances beyond the truck 
TRU owner’s control may include: 
(A) A delay in the manufacture and shipment of zero-emission fueling 
infrastructure equipment 
(B) A delay in obtaining construction permit(s) 
(C) A delay in obtaining power from a utility 
(D) A delay due to private financing 
(E) A delay in the installation of zero-emission fueling infrastructure 
(F) A natural disaster 
58  
  
 
 
 
 
 
 
 
 
 
 
 
 
 (G) The discovery of archeological, historical, or tribal cultural 
resources under the California Environmental Quality Act 
(3) The owner shall submit an application as required under section 
2477.20(i)(5) at least 12 months prio r to the compliance deadline in 
section 2477.5(b) if the delay is due to a utility infrastructure upgrade, 
and at least 3 months prior for all other delay types. 
(C)(4) The owner may, 60 days prior to the expiration of the extension is 
needed and how much , apply for an additional time to comply is 
needed, including:one-year extension. In such a case, the truck TRU 
owner shall once again be required to demonstrate that the conditions set forth in section 2477.20(i)(5) have been met. 
1. If delivery is the cause for delay, explain the status, and provide documentation from the manufacturer to 
demonstrate this is true, al ong with an updated delivery 
schedule. 
2. If installation is the cause for delay, report the date that compliance technology was delivered, explain the 
installation status and provide documentation from the 
installer to demonstrate the facts, along with an updated 
installation schedule. 
3. If there are other circumstan ces causing the delay, such as 
financing, explain the status and provide documentation from the financier to demonstrate  this is true, along with an 
updated schedule. 
(5) The owner or responsible official shall provide their signature, after the statement: “I certify under penalty of perjury under the laws of the State 
of California that the information provided is true, accurate, and The 
owner may, 60 days prior to the expiration of the second extension, apply for an additional compliance extension beyond the first two annual 
extensions due to a delay in obtaining power from a utility. In such a 
case, the owner shall once again be required to demonstrate that the conditions set forth in section  2477.20(i)(5) have been met. 
4. Within 45 days of the submission of a complete.” 
5. The owner or responsible official must submit an application for Compliance Extension to , the Executive 
Officer by one of the following methods: 
a. Mail or deliver to ARB at the address listed 
immediately below: 
59  
  
 
 
 
 
 
  
 
  
 
 
 
 
 CALIFORNIA AIR RESOURCES BOARD 
STATIONARY SOURCE DIVISION (ARBER/TRU) P.O. BOX 2815 SACRAMENTO, CA 95812 
b. Electronically submit by email to: arber@arb.ca.gov; 
or 
c. Electronically submit through ARB’s ARBER website at: http://www.arb.ca.gov/arber/arber.htm 
(m) ULETRU Extension for Compliance with LETRU. 
(1) The ULETRU compliance dat es required under subparagraphs 
2477.5(b)(1) through (4) may be extended one year for TRUs or TRU gen 
sets equipped with MY 2003 or older  engines if they complied by 
meetingshall approve, modify, or disapprove the LETRU In-Use 
Performance Standard by the compliance dates listed below and the following qualifications are met: 
(A) Compliance with LETRU was achieved by the following compliance 
dates: 
1. December 31, 2009 for MY 2001 and older engines; 
2. December 31, 2009 for MY 2002 engines; and 
3. December 31, 2010 for MY 2003 engines. 
(B) The original engine met the LETRU in-use standard by being 
retrofit with a Level 2 VDECS; or 
(C) The unit was repowered with a replacement engine meeting the LETRU in-use standard: 
1. Tier 4 final Non-Road/Off-Road Emission Standards, if the 
engine is rated at less than 25 hp 
2. Tier 4 interim Non-Road/Off-Road Emission Standards, if the engine is rated between 25 hp and less than 50 hp 
(D) The original TRU or TRU gen set was replaced with a new TRU or TRU gen set that is equipped with an engine that meets the LETRU in-use performance standard: 
60  
  
 
 
 
 
 
 
 
  
 
 
 
 
 1. Tier 4 final Non-Road/Off-Road Emission Standards, if the 
engine is rated at less than 25 hp, or 
2. Tier 4 interim Non-Road/Off-Road Emission Standards, if the engine is rated between 25 hp and less than 50 hp, or 
(E) The unit is registered in ARBE R under subparagraph 2477.5(e) 
(F)(6) Owner must apply for the ULETRU extension by submitting an 
application to the and notify the applicant accordingly. If the application 
is modified or disapproved, the Executive Officer at least 90 days before 
the ULETRU compliance date that includes the following 
information:shall state the reasons for the modification or disapproval in the notification. The notification to the applicant and approved plan, if applicable, shall be made available to the public on CARB’s website 
1. Owner name and Owner-Operator Number (OON); 
2. The affected unit’s IDN; 
3. A statement that the unit was in compliance on or before the compliance date required under section 2477.5(m)(1)(A), above; 
4. Documentation that demonstra tes that the LETRU in-use 
standard was met before the compliance date required under section 2477.5(m)(1)(A), above; 
5. In the case of a unit replacement that meets LETRU, 
additional information that demonstrates the old 
noncompliant unit that was replaced, including: 
a. A statement that the owner replaced a MY 2003 or 
older (actual model year must be specified) TRU or 
TRU gen set with a new TRU or TRU gen set that was 
equipped with an engine that is certified to meet a 
new engine emissions standard that meets the LETRU in-use performance standard; 
b. Receipts for the purchase of the new TRU or TRU gen set, dated on or before the compliance date required under section 2477.5(m)(1)(A), above; 
c. Documentation for the old, replaced TRU or TRU 
generator set that supports the statement in 
subparagraph 2477.5(m)(1)(F)5.a., above; and 
61  
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 6. Owner’s or responsible official’s signature, after the 
statement: “I certify under penalty of perjury under the laws 
of the State of California that the information provided is true, accurate, and complete.” 
(G) The owner or responsible official must submit an application for ULETRU Compliance Extension for Compliance with LETRU for 
TRU or TRU gen set replac ement under subparagraph 
2477.5(m)(1)(C), above, to the Executive Officer by one of the 
following methods: 
1. Mail or deliver to ARB at the address listed immediately 
below: 
CALIFORNIA AIR RESOURCES BOARD 
STATIONARY SOURCE DIVISION (ARBER/TRU) 
P.O. BOX 2815 SACRAMENTO, CA 95812 
2. Electronically submit by email to: arber@arb.ca.gov; or 
3. Electronically submit through ARB’s ARBER website at: 
http://www.arb.ca.gov/arber/arber.htm 
(n)(p) Safe Passage for Noncompliant E quipment Traveling in California. 
(1) The Executive Officer mayshall grant a safe passage permit to a TRU or 
TRU gen set owner to travel on California highways with a specific noncompliant TRU or TRU gen set, pr ovided the following conditions are 
met: 
(A) The purpose of traveling on California highways is to take the 
noncompliant equipment to a dealer or installer to bring the equipment into compliance. 
(B) Only one permit shall be allowed if the specificfor each TRU or 
TRU gen set must comply with the ULETRU in-use standard, and 
two permits shall be allowed if the specific TRU or TRU gen set must comply with both the LETR U and ULETRU in-use standards. 
(C) The TRU or TRU gen set shall not be operatingoperate (with the engine running) while in a noncompliant state in California;. 
62  
  
 
 
 
 
 
  
 
 
  
    
 
 
 
 (D) No temperatureTemperature-sen sitive products shall not be 
transported in a vehicle with a noncompliant TRU or TRU gen set;. 
(E) The owner shall submit an application for a safe passage permit to 
the Executive Officer. Safe passage permit applications shall be 
submitted by one of the following methods: 
1. Mail or deliver a physical report to ARB at the address listed 
immediately below: 
CALIFORNIA AIR RESOURCES BOARD 
STATIONARY SOURCE DIVISION (ARBER/TRU) P.O. BOX 2815 
SACRAMENTO, CA 95812 
2. Electronically submit by email to: arber@arb.ca.gov 
3. Electronically submit through ARB’s ARBER website at: 
http://www.arb.ca.gov/arber/arber.htm 
(F) Applications for safe passage pe rmits shall include the following 
information: 
1. Owner’s name; 
2. Business name (if different); 
3. Owner’s street address, state, zip code; 
4. Contact person’s name; 
5. Contact person’s business phone number; 
6. Date(s) transport will take place; 
7. Statement that the re ason for transporting the 
noncompliant equipment on California highways is strictly 
to take the noncompliant equipment to a dealer or installer to bring the equipment into compliance; 
8. TRU or TRU gen set serial number; 
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  9. Vehicle Identification Number (VIN), BIC Code (for TRU gen 
sets and domestic shipping containers), or railcar reporting 
mark; 
10. Physical address of starting location or point of entry into California; 
11. Dealer’s or installer’s business name and physical address where compliance technology will be installed; and 
12.(E) Owner’s or responsible official’s si gnature, after the statement: “I 
certify, as required under penalty of perjury under the laws of the 
State of California that the information provided is true, accurate, and complete.”section 2477.20(j). 
(G)(F) The Executive Officer shall provi de a decision within 15 days of 
the application submittal. 
(H)(G)The owner shall provide the driver with a copy of the safe passage permit that has been approved by the Executive Officer. 
(I)(H) During transit on California highwa ys, the driver mustshall, upon 
request: 
1. Show an inspector that no temperature-sensitive products 
are being transported; 
2. Present to the inspector the safe passage permit for the 
noncompliant TRU or TRU gen set that has been approved by the Executive Officer; and 
3. Allow the inspector to inspect the TRU or TRU gen set to confirm the permit applies to  the noncompliant equipment. 
(J)(I) All circumstances at the time of inspection shall be consistent with the safe passage permit. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
§ 2477.6. Requirements for Terminal OperatorsVehicle Owners. 
(a) Operator Reporting. 
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 (1) All terminal operators subject to this regulationBeginning December 31, 
2022, a vehicle owner shall submit an Operator Report to ARB by 
January 31, 2009, for each terminal locatednot operate or cause to be 
operated in California that shall include the following information: 
(A) Terminal operator name, address, and contact information for the responsible official (phone number, email address, fax number). 
(B) Terminal address, phone number, a nd terminal contact name for 
each California terminal where TRUs or , aTRUgenerator sets are 
garaged, maintained, operated ,-equipped truck or dispatched 
from. 
(C) List of ARB Identification Numbers issued in accordancetractor-
trailer equipped with section 2477.5(e)  for all TRUs and a TRU or 
TRU gen sets assigned to each California terminal. 
(2) The Operator Report shall be updated within 30 days when changes to 
any of the above operator information occur. An Operator Report shall 
be submitted to ARBER within 30 days of the start-up of any new facility 
and shall be removed from ARBER within  30 days of a terminal shutting 
down. 
(A) Operator Reports shall be submitted by one of the following 
methods: 
1. Mail or deliver a physical report to ARB at the address listed 
immediately below: 
CALIFORNIA AIR RESOURCES BOARD 
STATIONARY SOURCE DIVISION (ARBER/TRU) P.O. BOX 2815 
SACRAMENTO, CA 95812 
2. Electronically submit through ARB’s ARBER website at: 
http://www.arb.ca.gov/arber/arber.htm. 
3. Electronically submit by email to: arber@arb.ca.gov 
(3)(a) Failure to reportset, unless the TRU or submittal of false information is a 
separate violation of this rule and subject to civil penalty.TRU gen set complies 
with sections 2477.5(a), (b), (c), and (d). 
65  
  
 
  
  
 
 
 
 
 
 
   
 (b) Beginning December 31, 2022, a vehicle owner of a TRU-equipped truck or 
tractor-trailer equipped with a TRU or TRU gen set shall, upon request by CARB 
enforcement personnel, provide the following: 
(1) Driver’s license 
(2) Truck or tractor registration 
(3) Trailer registration 
(4) Bill of lading or freight bill with origin and destination of freight being transported, the consignor (shipper) and consignee (receiver); 
(5) The company name and contact in formation of the carrier that 
dispatched the driver; and 
(6) The company name and contact information of the business entity (e.g., 
shipper, freight broker, freight forwar der, or receiver) that arranged, 
hired, or contracted for the transport of the perishable goods being hauled, subject to the requirement s in sections 2477.8, 2477.9, 2477.10, 
and 2477.11. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013and, 43018, and 43019.1, Health 
and Safety Code. 
§ 2477.7. Requirements for Drivers. 
(a) Beginning January 1, 2013, a driver sha ll not operate a TRU-equipped truck or 
tractor-trailer equipped with a TRU or TRU gen set on a California highway 
unless the TRU or TRU gen set complies with sectionsections 2477.5(a), (b), (c), 
and (d). 
(b) A driver mustshall, upon request by CARB enforcement personnel , provide the 
following available information to authorized enforcement personnel: 
(1) Driver’s license; 
(2) Truck or tractor registration; 
(3) Trailer registration; 
(4) Bill of lading or freight bill with origin and destination of freight being 
transported, the consignor (shipper) and consignee (receiver); 
66  
  
 
 
 
  
 
 
 
 
 
 (5) The company name and contact in formation of the carrier that 
dispatched the driver; and 
(6) The company name and contact information of the business entity (e.g.., 
shipper, freight broker, freight forwar der, or receiver) that arranged, 
hired, or contracted for the transport of the perishable goods being 
hauled, subject to the requirement s in sections 2477.8, 2477.9, 2477.10, 
and 2477.11. 
(c) A driver shall allow CARB personnel to conduct a visual inspection of TRU or 
TRU gen sets to determine whether emi ssion control components have been 
tampered with, inadequately maintained, or are defective. The driver shall do 
the following: 
(1) Temporarily turn off the TRU or TRU gen set engine  
(2) Allow access to the TRU or TRU gen set engine compartment 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43109.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
§ 2477.8. Requirements for Freight Brokers and Freight Forwarders. 
(a) Beginning January 1, 2013, freight brokers and freight forwarders that arrange, 
hire, contract for, or dispatch the transport of perishable goods in 
TRU--equipped or TRU gen set-equipped trucks, tractor-trailers, shipping 
containers, or railcars on California highways or railways mustshall : 
(1) Require the carriers they hire or con tract with for transport of perishable 
goods, to only dispatch TR U-equipped trucks, trailers, shipping 
containers, and railcars or TRU gen set s that comply with section sections 
2477.5(a)), (b), (c), and (d), if they travel on California highways or 
railways. 
(2) Provide the following information to  the carrier for their dispatched 
driver who will be traveling on a California highway or railway: 
(A) Freight broker’s or freight forwarder’s business name; 
(B) Freight broker’s or freight forwar der’s street address, state, zip 
code; 
(C) Freight broker’s or freight forwarder’s contact person’s name; and 
67  
  
 
 
 
 
 
 
 
 
 
 (D) Freight broker or freight forwarder contact person’s business 
phone number. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43109.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
§ 2477.9. Requirements for Motor Carriers. 
(a) Beginning January 1, 2013, motor carrier s that dispatch TRU-equipped trucks, 
trailers, or shipping containers equipped with a TRU or TRU gen set that travel 
on a highway within California mustshall: 
(1) Only dispatch TRUs or TRU gen sets that comply with section 2477.5. 
(2) Provide the following information to a dispatched driver who will be 
traveling on a highway within California: 
(A) Carrier’s business name; 
(B) Carrier’s street address, state, zip code; 
(C) Carrier contact person’s name; and 
(D) Carrier contact person’s business phone number. 
(3) Provide the dispatched driver with  the business name, address, contact 
person, and phone number of the business entity (e.g.., freight broker, 
freight forwarder, shipper or receiver ) that arranged, hired, contracted 
for, or dispatched the transport of the perishable goods being hauled. 
(b) Carriers may also have to comply with  terminal operator requirements, under 
section 2477.6, if they have terminals located in California. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
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 § 2477.10. Requirements for California-Based Shippers. 
(a) Beginning January 1, 2013, California-b ased shippers that arrange, hire, 
contract for, or dispatch the tran sport of perishable goods in TRU-equipped 
trucks, trailers, shipping containers, or railcars, or TRU gen sets on California 
highways or railways mustshall: 
(1) Dispatch TRUs or TRU gen sets that comply with sectionsections 
2477.5(a), (b), (c), and (d) if they trave l on California highways or railways; 
or 
(2) Require the carriers they hire or con tract with for transport of perishable 
goods, to only dispatch TRUs or TRU gen sets that comply with 
sectionsections 2477.5(a), (b), (c), and (d ) if they travel on California 
highways or railways; and 
(3) Provide the following information to the carrier or a dispatched driver who will be traveling on a highway within California: 
(A) Shipper’s business name and address; 
(B) Receiver’s business name and address; 
(C) Freight broker or forwarder busi ness name and address (if any); 
and 
(D) Contact person’s name, and phone number at the shipper, broker, 
or receiver with knowledge of the transport arrangements. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
§ 2477.11. Requirements for California-Based Receivers. 
(a) Beginning January 1, 2013, California-ba sed receivers that arrange, hire, 
contract for, or dispatch the tran sport of perishable goods in TRU-equipped 
trucks, trailers, shipping containers, or railcars; or TRU gen sets on California 
highways or railways mustshall: 
(1) Dispatch TRUs or TRU gen sets that comply with sectionsections 
2477.5(a), (b), (c), and (d) if they trave l on California highways or railways; 
or 
69  
  
 
 
 
 
 
 
 
 
 
 
 
 
 (2) Require the carriers they hire or con tract with for transport of perishable 
goods, to only dispatch TRUs or TRU gen sets that comply with 
sectionsections 2477.5(a), (b), (c), and (d ) if they travel on California 
highways or railways; and 
(3) Provide the following information to the carrier or a dispatched driver who will be traveling on a highway within California: 
(A) Shipper’s business name, address; 
(B) Receiver’s business name, address; 
(C) Freight broker or forwarder busi ness name and address (if any); 
and 
(D) Contact person’s name, and phone number at the shipper, broker, 
or receiver with knowledge of the transport arrangements. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
§ 2477.12. Requirements for Lessors and Lessees. 
(a) Lessors shall be subject to all of the following: 
(1) The lessor is responsible for the owner requirements set forth in section 
2477.5. See the definition of “owner” in section 2477.4 for clarification related to banks and financial institutions. 
(A) The lessor may delegate the responsi bility for applying for an IDN 
(registering in ARBER)responsibilit ies under section 2477.5(eg), (h), 
and (i) to the lessee, if the following conditions are met: 1. The lease contract mustshall show clear delegation of the 
ARBER registrationTRU reporting, operating fee, and 
compliance label requirements to the lessee; 
2. The lessor mustshall submit third party agreement 
confirmation information as required under section 
2477.20(k) for leased units to ARBCARB at least 10 days 
prior to the lessee applying for an IDN. The following information is required: 
a. Unit serial numbers for each TRU or TRU gen set; 
70  
   
 
 
 
 
 
 
 
 
 
 b. Unique company equipment number; 
c. Vehicle license number; 
d. Vehicle Identification Number (VIN); 
f. Lessor company name, address, federal tax ID (EIN), contact 
person, and contact information; 
g. Lessee company name, address, federal tax I.D (EIN), contact 
person, and contact information; 
2. e. Copy ofreporting the contract pages of the lease 
contract with the language highlighted that identifies the 
lessee as the responsible party for registration; andTRU or TRU gen set to CARB. 
f. Owner’s/lessor’s or respo nsible official’s signature, 
after the statement: “I certify under penalty of 
perjury under the laws of t he State of California that 
the information provided is true, accurate, and 
complete.” 
3. The lessor must submit third party agreement confirmation information for leased units to the Executive Officer by one of the following methods: 
a. Mail or deliver to ARB at the address listed 
immediately below: 
CALIFORNIA AIR RESOURCES BOARD 
STATIONARY SOURCE DIVISION (ARBER/TRU) 
P.O. BOX 2815 SACRAMENTO, CA 95812 
b. Electronically submit by email to: arber@arb.ca.gov 
4.3. The lessor mustThe lessor shall notify the lessee in writing 
of this delegation. 
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 (B) The lessor shall not delegate owner  requirements for complying 
with the in-use standards under se ctionsections 2477.5(a), (b), (c), 
and (d) to the lessee unless the lessor is a bank or financial 
institution (see definition of “owner” in section 2477.4).. 
(2) When TRUs or TRU gen sets are at a lessor’s California terminal for 30 or more days, the lessor shall be subject to the operator report requirements set forth in section 2477.6. 
(b) Lessees shall be subject to all of the following: 
(1) The terminal operator requirements set  forth in section 2477.6 if a leased 
or rented TRU or TRU generator set  has been assigned to the lessee’s 
California terminal for 30 or more days. 
(2)(1) If delegated by contract and the lessor has submitted third party agreement confirmation information for leased units to ARBCARB under 
section 2477.12(a)(1)(A) and notifi ed the lessee of delegation under 
section 2477.12(a)(1)(A)3., the lessee is responsible for the 
registration TRU reporting, operat ing fee, and compliance label 
requirements of sectionsections 2477.5(eg), (h), and (i) and shall 
complete all of the following: 
(A) Submit a registration application for an IDNReport the TRU or TRU 
gen set to CARB and pay applicable  TRU operating fees after at 
least 10 days of the lessor submitting the third party agreement 
confirmation information for leased units to ARBCARB, but no 
more than 30 days after the lessor’s notice; 
(B) Submit a copy of the ARBER TRU Certification to the lessor within 
30 days after registration in ARBER is completedreporting the TRU or TRU gen set to CARB and an  ARBERa TRU Certification is 
issued; and 
(C) Affix (attach) the IDN to the TRU or TRU gen set housing within 30 days in accordance with subparagraph 2477.5(e)(1)(Fg)(6). 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
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 § 2477.13. Requirements for TRU and, TRU Gen Set , and ZE Truck TRU Original 
Equipment Manufacturers. 
(a) TRU and TRU original equipment manufac turers that equip TRUs or TRU gen 
sets with flexibility engines, as defined in  section 2477.4, shall do all of the 
following: (1) Beginning November 14, 2012, provi de written notification to the 
Executive Officer of their intent to equip TRUs or TRU gen sets with 
flexibility engines. This notification shall be submitted at least 12 months 
in advance of the first flexibility engine being installed in production, to: 
CALIFORNIA AIR RESOURCES BOARD 
STATIONARY SOURCE DIVISION (TRU) 
P.O. BOX 2815 SACRAMENTO, CA 95812 
(2) Beginning February 12, 2013, provide supplemental labels that list all of 
the engine information needed to register the TRU or TRU gen set in ARBER under section 2477.5(e), if the engine manufacturer’s emissions 
label does not provide this information. 
(A) The supplemental label shall be permanently affixed to the 
flexibility engine in an easily accessi ble place, in accordance with 
40 CFR 89.110 (for Tier 1 or Tier 2) or 40 CFR 1039.135 (for Tier 
4). Alternative supplemental label locations and font sizes may be necessary, such as on the equipment frame, subject to Executive 
Officer approval. 
(3) Beginning February 12, 2013, the orig inal equipment manufacturer shall 
provide written disclosures with n ew TRUs or TRU gen sets that are 
equipped with flexibility engines. These written disclosures may be 
included with documentation that is shipped with the TRU or TRU gen 
set and must include instructions to dealers telling them they are 
required by California law to notify the ultimate purchaser of these 
disclosures prior to sale and to pass these written disclosures to the 
ultimate purchaser at point of sale. The following disclosures are required: 
(A) The TRU or TRU gen set is equipped with a flexibility engine. 
Flexibility engines meet less strin gent emissions standards than 
the emission standards that were in effect at the time the flexibility 
engine was manufactured. 
73  
  
 
 
 
 
 
 
 
 
 
 (B) Provide the effective model year of the flexibility engine, as shown 
in section 2477.4, Table 1. 
(C) Notify the ultimate purchaser that  if they register the TRU or TRU 
gen set in ARBER under section 2477.5(e), they are required 
report the effective model year of the engine, not the year that the engine was manufactured. No ncompliance may result in 
penalty. 
(D) If the TRU or TRU gen set is oper ated in California, the owner will 
be required to bring the engine into compliance with the ULETRU in-use standard seven years after the effective model year of the engine, in accordance with section 2477.5(a) and (b). 
(a) Beginning December 31, 2022, TRU OEMs sh all not manufacture for sale or use 
in California, a truck TRU, ZE truck TRU,  trailer TRU, or DSC TRU, unless that 
TRU uses a refrigerant with a GWP value less than or equal to 2,200, or uses no refrigerant at all. 
(1) The TRU shall include a refrigerant label that is readily visible and legible, 
and include the following statement, or its equivalent: “THIS UNIT 
CONTAINS REFRIGERANT WITH A GWP LESS THAN OR EQUAL TO 2,200 AND IS COMPLIANT FOR USE IN THE STATE OF CALIFORNIA.” 
(A) Readily visible to the average person means that a label is readable from a distance of 46 centimeters (18 inches) without any 
obstructions from the TRU or engine parts, except for flexible 
parts that may be moved out of the way without disconnection.  
(b) Beginning December 31, 2023, TRU OEMs sh all not manufacture for sale or use 
in California, a truck TRU, unless it is a ZE truck TRU. 
(c) Beginning May 31, 2023, TRU OEMs shall no t manufacture for sale or use in 
California, a trailer TRU, DSC TRU, railcar TRU, or TRU gen set, unless it is equipped with an engine that meets or ou tperforms the performance standard 
set forth in section 2477.5 (d). 
(b)(d) Original Equipment Manufacturer Reporting 
74  
  
 
 
  
 
 
 
 
 
  
 
 
 
 (1)Current Production Reports: Monthly production reports. Beginning April 
6, 2011, and by January 1st and J une 30th of each calendar year 
thereafter, TRU and TRU gen set original equipment manufacturersOEMs 
shall provide to ARBby the information listed below for all TRUs and TRU 
gen sets that will be manufactured and marketed for sale in end ofthe 
following markets: California, United States, Canada, and Mexico. The 
following data shall be provided for TRUs and TRU gen sets that will be produced during the six month perio d following the report due date for 
each market area: 
(A) TRU or TRU genset manufacturer and model name, as it appears 
on the unit label; and 
(B) The following engine information for each TRU or TRU gen set model: 
1. Engine manufacturer; 
2. Engine model, as it appears on the engine emissions label; 
3. Engine model, as it appears on the serial number label, if 
different; 
4. Engine Family; 
5. Rated horsepower and rated speed; 
6. Displacement (liters); 
7. Exhaust Emissions Control System; 
8. Tier standard met; and 
9. ARB’s Executive Order that the engines are manufactured 
under. 
(C) Current Production Reports shall be submitted by onesecond 
business day of the following methods: 
1. Mail or deliver a physical report in electronic format to ARB 
at the address listed immediately below: 
CALIFORNIA AIR RESOURCES BOARD 
STATIONARY SOURCE DIVISION (TRU) 
1001 I STREET 
75  
  
 
 
  
 
 
 
 
 
 
 
 
 SACRAMENTO, CA 95814 
2. Electronically submit to ARB’s TRU Program via email at: 
arber@arb.ca.gov 
(D) Original equipment manufacturers that produce less than 100 
TRUs or TRU gen sets pereach calendar year may submit Current 
Production Year Reports within ten days of installing the first 
engine in amonth, a monthly production run of a new model. 
(2) Prior Production Reports: 
(A) Prior unit and engine data. TRU and TRU gen set original 
equipment manufacturers shall: 
1.(1) By April 6, 2011, provide a producti on report to ARBCARB with the 
information listed below in subparagraphsection 2477. 13(b)(2)(C20(l) for 
the previous five calendar yearsmonth for each TRU or, TRU gen set, or 
ZE truck TRU produced for sale in California, North America, Canada, and Mexico; or. 
2. If the TRU or TRU gen set original equipment manufacturer elects not to provide the information in subparagraph 
2477.13(b)(2)(A)1., then within 30 days of any request from 
ARB, the TRU or TRU gen set original equipment manufacturer shall provide a production report to ARB with 
the information listed below in subparagraph 
2477.13(b)(2)(C) for the unit and engine serial numbers provided in ARB’s request. 
(B) Monthly production reports. TRU and TRU gen set original equipment manufacturers shall either: 
1. Beginning April 6, 2011, provide by the 15th of each 
calendar month, a monthly production report to ARB with 
the information listed below in subparagraph 
2477.13(b)(2)(C) for the previo us calendar month for each 
TRU or TRU gen set produced for sale in California, North America, Canada, and Mexico; or 
2. As an alternative, the TR U or TRU gen set original 
equipment manufacturer may request reporting that is equivalent to and at least as effective as subparagraph 2477.13(b)(2)(B)1., immediately above, subject to Executive Officer approval. 
76  
  
 
 
  
 
 
 
  
 
  
 
 
 
 (C) Original equipment manufacturers shall provide the following 
information for each TRU and TRU gen set: 
1. TRU or TRU gen set model name, as it appears on the unit 
label; 
2. TRU or TRU gen set serial number; 
3. Engine manufacturer; 
4. Engine model, as it appears on the engine emissions label; 
5. Engine model, as it appears on the serial number label, if different; 
6. Engine Family; 
7. Engine serial number; 
8. Rated horsepower an d rated speed; and 
9. Tier standard met. 
(D) Prior Production Reports and Flexibility Engine Reports shall be submitted on CD or DVD to: 
CALIFORNIA AIR RESOURCES BOARD 
STATIONARY SOURCE DIVISION (TRU) 1001 I STREET SACRAMENTO, CA 95814 
(3)(2) Confidentiality of current and prior production reports. TRU and TRU gen 
set original equipment manufactu rers may designate current and 
priorspecific production report in formation as confidential or trade 
secret, and suchCARB shall handle designated information will be 
handled in accordance with title 17 CCR, section 91000. 
(c)(e) Beginning February 12, 2013, TRU a nd TRU gen set original equipment 
manufacturers (OEM) that sell TRUs, TRU gen sets, ZE truck TRUs, or 
replacement engines in California shall: 
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  (1) Provide a supplemental label with all new and rebuilt replacement 
engines that provides the information that is required to registerreport 
the unit in ARBERto CARB under section 2477.5(eg), if the engine 
manufacturer’s emissions label does not provide this information. If a 
prior-tier replacement engine (as defined in section 2477.4) is used, the 
effective model year (as defined in section 2477.4) shall be listed on the 
supplemental label. 
(A) The supplemental label shall be permanently affixed to the 
replacement engine in an easily accessible place, in accordance 
with 40 CFR 89.110 (for Tier 1 or Tier 2 engines) or 40 CFR 1039.135 (for Tier 4 engines). Alternative supplemental label 
locations and font sizes may be necessary if accessible engine 
surface space is not available, subject to Executive Officer approval. 
(2) Provide a registration information document with each new TRU and, 
TRU gen set, and ZE truck TRU that includes: 
(A) All of the TRU or, TRU gen set , or ZE truck TRU unit information 
that is needed to registerrepo rt the TRU or, TRU gen set in 
ARBERto CARB under section 2477.5(eg). This information mustshall be the same as the information on the unit label that is attached to the unit. 
(B) All of the TRU or TRU gen set engine information needed to register in ARBERreport to CARB under section 2477.5(eg). This 
information  mustshall  be the same as the information on the 
engine labels that are attached to the engine. 
(C) The registration information document shall include a certification statement by the TRU OEM stati ng that the unit registration 
information provided is exactly the same as listed on the TRU or, TRU gen set, or ZE truck TRU unit label and the engine 
registration information provided is exactly the same as listed on the engine labels. 
78  
  
 
 
 
 
  
 
 (D) As an alternative to providing the registration information 
document, the TRU or TRU gen set original equipment 
manufacturer may provide a web-based, on-line lookup system for 
registration information that is at least as effective as section 
2477.13(ce)(2)(A), (B), and (C), su bject to advance Executive 
Officer approval. In determining whether a specific web-based, 
on-line lookup system for registration information is at least as 
effective as section 2477.13(ce)(2)(A ), (B), and (C), the Executive 
Officer shall consider information submitted by the manufacturer and shall exercise good scientific and engineering judgment. 
(3) Provide a registration information document with each new and rebuilt replacement engine supplied by the OEM that includes: 
(A) All of the engine information needed to register in ARBERreport 
to CARB under section 2477.5(eg). This information mustshall be 
the same as the information on the new replacement engine labels or rebuilt replacement engine supplemental labels (see section 
2477.16(b))) that are attached to  the engine or an alternative 
location approved by the Executive Officer. 
(B) The registration information document shall include a certification 
statement by the TRU OEM stating that the engine registration information provided is exactly the same as listed on the replacement engine labels. 
(C) Include entry spaces and instructions for the dealer or installer to 
fill in the unit information that is needed to registerreport the unit 
in ARBERto CARB pursuant to se ction 2477.5(e)(1)(A)20(f)(4.). 
Include a certification statement for the dealer or installer to sign 
under, stating that the unit information entered is exactly the 
same as listed on the unit label that the replacement engine is installed into. 
(D) As an alternative to providing the registration document, the TRU or TRU gen set original equipment manufacturer may provide a 
web-based, on-line lookup system for registration information that 
is at least as effective as se ction 2477.13(ce)(3)(A), (B), and (C), 
subject to advance Executive Officer approval. In determining whether a specific web-based, on-line lookup system for registration information is at least as effective as section 
2477.13(c)(2e)(3)(A), (B), and (C), the Executive Officer shall 
consider information submitted by the manufacturer and shall 
exercise good scientific and engineering judgment. 
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  (d)(f) Beginning November 14, 2012, OEMs shall provide written disclose with each 
prior-tier replacement engine they supply that shall be passed on to interested 
buyers prior to sale of a prior-tier r eplacement engine notifying them that the 
engine was manufactured to meet less stringent emissions standards than are currently required. This notification must  also provide the effective model year 
of the prior-tier replacement engine and the ULETRU compliance deadline. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
§ 2477.14. Requirements for TRU, TRU Gen Set, and TRU-Equipped Truck and 
Trailer Dealers. 
(a) Beginning February 12, 2013, dealers that  sell and/or install TRUs, TRU gen 
sets, ZE truck TRUs, or replacement engines in California shall: 
(1) Pass the registration information document provided by the TRU or TRU 
gen set OEM (under section 2477.13) or print-out from the OEM’s web-
based look-up system (under section 2477.13(ce)(2)(D) or 2477.13(ce)(3)(D)) to the ultimate purch aser upon sale of a new TRU or, 
TRU gen set , or ZE truck TRU that includes the TRU or, TRU gen set, or 
ZE truck TRU unit information and the TRU engine information required for registration under  section 2477.5(eg). 
(2) Pass the registration information document provided by the TRU or TRU gen set OEM under (section 2477.13) or print-out from the OEM’s web-
based look-up system (under section 2477.13(ce)(2)(D) or 2477.13(ce)(3)(D)), or engine rebuilder (under section 2477.16) to the 
ultimate purchaser upon sale of a new replacement engine, or rebuilt 
replacement engine that includes the engine information required for registration under section 2477.5(eg). 
(3) If an engine is not supplied by a TRU OEM, the dealer shall provide a registration information document that  lists all of the TRU or TRU gen set 
engine information needed to register  in ARBERreport to CARB under 
section 2477.5(e)(1)(A)20(f)(7.). This information mustshall be exactly the same as the information on the engine emissions label that is attached to 
the engine. The registration information document mustshall include a 
certification statement by the dealer  stating that the engine information 
provided is exactly the same as listed on the engine emissions label. 
80  
  
 
 
 
 
 
 
  
 
 
 
 
 
 (4) If a new TRU or TRU gen set is equipped with a flexibility engine, the 
dealer shall notify the ultimate pu rchaser of the written disclosures 
provided by the OEM under section 2477. 13(a)(3) prior to sale and shall 
pass these disclosures to the ultimate purchaser at point of sale of a new 
TRU or TRU gen set. 
(b) Dealers that sell TRUs or TRU gen sets from businesses located in California may purchase, receive, or otherwise acquire and have in their possession, TRUs 
or TRU gen sets that are noncompliant with the in-use performance standards 
of section 2477.5(a) and the registrati on requirements of section 2477.5(e),a), 
(b), (c), (d), and (g) if t he following conditions are met: 
(1) The noncompliant TRUs or TRU gen set s are not sold for use in California 
prior to being brought into comp liance with the requirements; 
(2) The noncompliant TRU or TRU gen set is sold to a person that would not 
be reasonably expected to do business in California and a written disclosure to the buyer in the bill of sale is required in accordance with section 2477.18(b)(1); 
(3) The noncompliant TRUs or TRU gen sets are not rented or leased prior to 
being brought into compliance with these requirements; 
(4) The noncompliant TRUs or TRU gen sets are not operated at the 
dealersdealer’s place of business or on California highways for the purposes of controlling the environment of temperature sensitive 
products while in California. This condition applies to TRU or TRU gen 
sets under the dealer’s control. This condition does not apply to TRUs or 
TRU gen sets owned by others that are being repaired by the dealer; and 
(5) If a noncompliant TRU or TRU gen set is in transit on California highways: 
(A) The TRU or TRU gen set shall not be operating; 
(B) The dealer shall be responsible for ensuring that no temperature-
sensitive products are transported in the vehicle; 
(C) The dealer shall provide the driver with written evidence that the noncompliant TRU or TRU gen set is under the control of the dealer, including the following information: 
1. Dealer’s business name; 
2. Dealer’s street address, state, zip code; 
3. Dealer contact person’s name; 
81  
  
 
 
 
  
 
 
 
 
 
 
 4. Dealer contact person’s business phone number; 
5. Date(s) transport will take place; 
6. Statement of the reason fo r transporting the noncompliant 
equipment 
7. TRU or TRU gen set serial number 
8. Physical address of starting location; 
9. Physical address of ending location; and 
10. Dealer owner’s or responsible official’s signature, after the 
statement: “I certify under penalty of perjury under the laws 
of the State of California that the information provided is true, accurate, and complete.” 
(D) During transit on California highways, the driver, upon request, must show an inspector that no temperature-sensitive products 
are being transported and must shall present written evidence 
provided by the dealer that the noncompliant TRU or TRU gen set 
is under the control of a dealer; and 
(E) All circumstances at the time of inspection shall be consistent with the requirements under section 2477.14(b)(5). 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
§ 2477.15. Requirements for Repair Shops Lo cated in California that Work on TRUs 
or TRU Gen Sets. 
(a) Repair shops located in California that sell and/or install new or rebuilt 
replacement engines into TRUs or TRU gen sets shall: 
(1) Pass the registration information document provided by the TRU or TRU 
gen set OEM (under section 2477.13) or engine rebuilder (under section 
2477.16) to the ultimate purchaser upon sale of a new or rebuilt replacement engine that includes the engine information needed to register in ARBERreport to CARB, as listed in section 2477.5(e)(1)(A)20(f)(7.). 
82  
  
  
  
 
 
 
 
 (2) Beginning February 12, 2013, if an engine is not supplied by a TRU OEM, 
the installer shall provide a registrati on information document that lists 
all of the TRU or TRU gen set engine information needed to register in 
ARBERreport to CARB, as listed in  section 2477.5(e)(1)(A)20(f)(7.). 
(A) This information mustshall be exactl y the same as the information 
on the engine emissions label that is attached to the engine. 
(B) The registration information document shall provide a certification 
statement by the repair shop respo nsible official stating that the 
engine information provided is exactly the same as listed on the engine emissions label. 
(3) Beginning February 12, 2013, provide the unit information on the 
registration information document that is needed to registerreport the 
unit in ARBERto CARB for TRU or TRU gen set that the new or rebuilt 
replacement engine is installed into. The unit information that is required 
is listed in section 24 77.5(e)(1)(A)20(f)(4 .). 
(A) The repair shop responsible official shall provide a certification 
statement on the registration in formation document stating that 
the unit information provided is exactly the same as listed on the 
unit label. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
§ 2477.16. Requirements for Engine Rebuilders. 
(a) If a TRU engine is being rebuilt to remain in compliance with the in-use 
standards of section 2477.5(ac), it must be rebuilt in accordance with the 40 
CFR, sections 89.130 and 1068.120, a nd 13 CCR, section 2423(l), as these 
sections existed on August 31, 2012, a nd shall meet the following requirements: 
(1) To remain in compliance with the in-use performance standards, the 
engine must be rebuilt to a configuration of a more stringent emissions 
standard tier than the original engine; 
(2) The engine must be rebuilt to a certified configuration of matched components. “Matched components”  means a complete set of 
components corresponding to the certified emissions configuration (tier) of the engine that is being used as the reference for the rebuilt engine. 
83  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 (b) Beginning November 14, 2012, engine r ebuilders shall provide a supplemental 
label with each rebuilt engine that includes the following information: 
(1) Name of the engine rebuilder; 
(2) Engine manufacturer of the original engine 
(3) Engine model; 
(4) Engine model year: (A) Prior tier engines. If the rebuilt engine meets a prior-tier emissions 
standard, then the effective model year is required (see definition 
of effective model year in section 2477.4);; 
(B) Current tier engines. It the rebuilt engine meets the tier standard that is currently in effect, then t he model year is the year that the 
rebuild is completed. 
(5) Horsepower rating of the certified configuration of the rebuilt engine; 
(6) Emissions standard tier met by the ce rtified configuration (e.g.., Tier 4i); 
and 
(7) Calendar year that the rebuild was completed. 
(c) Supplemental labels shall be permanently affixed to the rebuilt engine in an easily accessible place, in accordance wi th 40 CFR, section 89.110 (for Tier 1 or 
Tier 2) or 40 CFR, section 1039.135 (for  Tier 4). Alternative supplemental label 
locations and font sizes may be necessary if surface space is not available, subject to Executive Officer approval. 
(d) Beginning January 13, 2013, engine rebu ilders shall provide the following 
documentation, within 30 days of request, that demonstrates they have 
complied with the engine rebuilding pr actices of 40 CFR, sections 89.130 and 
1068.120, and 13 CCR, section 2423(l): 
(1) Information that demonstrates there is  a reasonable technical basis for 
knowing that the rebuilt engine is  equivalent, from an emissions 
standpoint, to an engine that complies with the certification standards 
applicable to the emissions tier standard of the rebuilt engine (i.e.., 
tolerances, calibrations, specificatio ns). Such equivalency would exist if 
the following two conditions are met: 
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 (A) Parts installed (whether the parts are new, used, or rebuilt) are 
such that a person familiar with the design and function of engines 
would reasonably believe that the parts perform the same function with respect to emission control as the original parts; and 
(B) Any parameter adjustment or design element change is made only in accordance with the original engine manufacturer’s instructions 
or where data or other reasonable technical basis exists that such 
parameter adjustment or  design element change, when 
performed on the rebuilt engine, is not expected to adversely affect in-use emissions. 
(2) The technical demonstration must be signed and stamped by a licensed professional mechanical engineer. 
(e) Beginning February 12, 2013, engine rebuilders shall provide a registration information document with the rebuilt engine that includes: 
(1) All of the TRU or TRU gen set engine information needed to register in 
ARBERreport to CARB pursuant to subparagraph 2477.5(e)(1)(A)20(f)(7) 
except that engine family may be omitted for rebuilt engines. This 
information must be the same as the information on the rebuilt engine’s 
re-label and supplemental emissions label that is attached to the engine. The registration information document would include a certification statement by the engine rebuilder, or th ird party installer stating that the 
engine information provided is exactly the same as listed on the engine emissions label. 
(2) A separate section of the registration information document shall include entry spaces for all of the TRU or TRU gen set unit information that is required to registerreport the unit in ARBERto CARB pursuant to 
subparagraphs 2477.5(e)(1)(A)20(f)(4) and (5.). The registration information document would include a certification statement, with a 
signature space for the third party installer, stating that the unit 
information provided is exactly the same as listed on the unit label. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
85  
  
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 § 2477.17. Requirements for Applicable Facility Reporting.Owners or Applicable 
Facility Owner/Operators. 
(a) Facility Registration. On or before December 31, 2023, applicable facility 
owners or applicable facility owner/operators shall register their facilityAll 
facilities subject to this subsection shall submit a Facility Report to ARB by 
January 31, 2006, containingreporting the following information, as of December 31, 2005 to CARB: 
(1) Company Information 
(1)(A) Company/business name, address, and contactContact 
information for the facility’s responsible official. (e.g., title, phone 
number, email address). 
(2) Provide all North American Industrial Classification System codes (NAICS) 
Indicate who is registering the applicable to the facility., either: 
(A) The applicable facility owner (or an employee of owner), or 
(B) The applicable facility operator 
(3) Applicable facility type (specify) 
(A) Refrigerated Warehouse or Distribution Center 
(B) Grocery Store 
(C) Seaport Facility 
(D) Intermodal Railyard 
(4) Refrigerated Warehouse or Distribution Center or Grocery Store building 
size in square feet 
(5) Rental or lease status. Indicate if the a pplicable facility is a rental unit (no 
contract term) or a lease unit (under contract term, typically more than 
one year). 
(3)(6) The number of loading dock doors serving refrigerated storage space. 
(4)(7) The number of square feet of refrigerated storage space. 
(5) The number of TRUs or TRU gen sets unde r facility control by model year 
and horsepower category. 
(6) The number of refrigerated trucks, trailers, shipping containers, or 
railcars leased or rented. 
86  
  
 
 
 
 
 
 
 (7) The total annual TRU engine operati ng hours for all TRUs or TRU gen 
sets under facility control during 2005 (e.g. total TRU engine operating 
time for both on-road and off-road operations). 
(8) The average weekly number of inbound refrigerated trucks, trailers, 
shipping containers, and railcars deliv ering goods to the facility during 
2005, calculated by dividing the annua l total inbound refrigerated loads 
by 52. 
(9) The average weekly number of outb ound refrigerated trucks, trailers, 
shipping containers and railcars deliver ing goods from the facility during 
2005, calculated by dividing the annual total outbound refrigerated loads 
by 52. 
(10)(8)The average total number of hours per week that outbound TRU or TRU gen set engines operate while at the facility during 20052022. Average 
TRU or TRU gen set engine operating time at facility for outbound 
refrigerated loads may be used if the result is representative of the 
outbound TRU or TRU gen set operatio ns at facilities, as determined by 
the Executive Officer. Average values would be determined for outbound loads based on recordkeeping,  conducted in accordance with 
subparagraph (f)(2)(B)2., and applied to the total annual number of 
refrigerated outbound loads, and then weekly averages calculated as 
follows: Average TRU or TRU gen set engine operating time per 
outbound refrigerated load multiplied by the total annual number of 
outbound loads, divided by 52 weeks equals the average total number of 
hours per week that outbound TR U or TRU gen set engines operate 
while at the facility. 
(11)(9)The average total number of hours per week that inbound TRU or TRU 
gen set engines operate while at the facility during 20052022. Average 
TRU or TRU gen set engine operating time at facility for inbound 
refrigerated loads may be used if the result is representative of the 
inbound TRU or TRU gen set operations at facilities, as determined by 
the Executive Officer. Average values would be determined for inbound loads based on recordkeeping, co nducted in accordance with 
subparagraph (f)(2)(B)2., and applied to the total annual number of 
refrigerated inbound loads, and then weekly averages calculated as 
follows: Average TRU or TRU gen set engine operating time per inbound 
refrigerated load multiplied by the total annual number of inbound loads, 
divided by 52 weeks equals the avera ge total number of hours per week 
that inbound TRU or TRU gen set engi nes operate while at the facility. 
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 (12)(10) The number of refrigerated trailers (as defined) that are used at 
the facility for cold storage, the total annual number of hours of TRU 
engine operation associated with these refrigerated trailers, and the total 
annual number of hours of operation using electric standby associated 
with these refrigerated trailers. 
(11) Zero-emission fuel provided (if any). 
(A) If electricity is provided: 
1. Location of connectors (e.g., dock door, parking lot, staging 
area) 
2. Number of connectors 
3. Type of connectors 
(b) If reported information for any applicable  facility changes, then the applicable 
facility owner shall update the information within 30 days of the changes. 
(c) If an applicable facility begins operat ions after December 31, 2023, then the 
applicable facility owner shall report the information in section 2477.17(a) to CARB within 30 days of the applicable facility beginning operations 
(d) Facility Registration Fees. Beginning Dec ember 31, 2023, the Executive Officer 
shall assess and collect fees from owners or owner/operators of applicable 
facilities in California to recover the cost s to the Executive Officer administering 
the TRU ATCM as specified in section 2477.21(b). 
(e) Facility Reporting. On or before Decembe r 31, 2023, applicable facility owners 
or applicable facility owner/operators shall select the requirements in either 
section 2477.17(e)(1) or section 2477.17(e)(2 ). If neither option is selected, the 
applicable facility owner or applicable facility owner/operator shall automatically 
be required to comply with section 2477.17(e )(2). An applicable facility owner or 
applicable facility owner/operator may change the option selected for the 
following calendar year by notifying CARB by September 30 of the preceding 
calendar year. 
(1) Report all TRU Activity at Facility. 
(A) Beginning December 31, 2023, app licable facility owners or 
applicable facility owner/operators shall collect the information 
required under section 2477.20(m)  for any TRU that operates 
inside the facility fence line or property boundary.  
88  
  
 
 
 
 
 
  
 
  
 
 
 (B) Beginning April 15, 2024, applicable  facility owners or applicable 
facility owner/operators shall report information required under 
section 2477.20(m) to CARB quarterly in accordance with the schedule shown in Table 4.  
Table 4: Applicable Facility Reporting Schedule 
TRU Entry Date Date by which information is to be 
reported to CARB 
January 1 – March 31 April 15 
April 1 – June 30 July 15 
July 1 – September 30 October 15 
October 1 – December 31 January 15 
(C) If CARB finds non-reported TRUs operating inside the facility 
fence line or property boundary, t he applicable facility owner or 
applicable facility owner/operator may be subject to a penalty pursuant to Health and Safety Code sections 39674, 39675, 42400 et seq., 42402 et seq., and 42410 for each non-reported TRU. An 
applicable facility owner or app licable facility owner/operator may 
be subject to increased penalties for each additional non-reported 
TRU. 
(D) An applicable facility owner or a pplicable facility owner/operator 
may designate specific report information as confidential or trade 
secret. CARB shall handle designated information in accordance 
with Title 17 CCR, section 91000. 
(2) Declaration of TRU Compliance. 
(A) Applicable facility owners or a pplicable facility owner/operators 
shall provide a declaration to CARB, under penalty of perjury, that 
beginning December 31, 2023, non-comp liant TRUs subject to this 
regulation shall not be permitted to operate inside the facility 
fence line or property boundary. 
1. An applicable facility owner or applicable facility 
owner/operator may check if a given TRU is compliant by 
verifying that the TRU has a valid CARB compliance label or by checking identifiable information through CARB’s online system. 
89  
  
 
 
 
 
 
 
 
 
 
 (B) If CARB finds a non-compliant TRU operating inside the facility 
fence line or property boundary, t he applicable facility owner or 
applicable facility owner/operator may be subject to a penalty pursuant to Health and Safety Code sections 39674, 39675, 42400 
et seq., 42402 et seq., and 42410 for each non-compliant TRU. An applicable facility owner or app licable facility owner/operator may 
be subject to increased penalties for each additional non-compliant TRU operating within an applicable facility’s fence line or property boundary. 
(b)(f) Recordkeeping. 
(1) Recordkeeping that substantiates the information reported in the Facility 
Report shall be maintained and shall be compiled and made available to 
State inspectors upon request for a minimum of three (3) years. 
(2)(1) The Executive Officer may approve alternative recordkeeping and calculation procedures for determining the average weekly hours of TRU 
engine operation at a facility for inbound and outbound refrigerated 
loads, provided the Executive Officer finds that the alternative 
procedures meet the intent of section 2477.17. 
(c) Facility Report Submittals. Facility Reports  shall be submitted by one of the 
following methods: 
(1) Mail or deliver a physical report to ARB at the address listed immediately 
below: 
CALIFORNIA AIR RESOURCES BOARD 
STATIONARY SOURCE DIVISION (TRU) 1001 I STREET 
SACRAMENTO, CA 95814 
(2) Electronically submit by email to: tru@arb.ca.gov 
(d) Failure to Report or Submittal of Fal se Information. Failure to report or 
submittal of false information is a separate violation of this rule. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
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 § 2477.18. Prohibitions. 
(a) Except as allowed under section 2477.14( b), no person, including, but not 
limited to, manufacturers, distributors, dealers, auctioneers, and motor carriers 
shall intentionally or negligently import, deliver, purchase, receive, or otherwise 
acquire a new or used TRU or TRU gen set engine that does not meet the 
performance requirements or alternatives set forth in sectionsections 2477.5(a), 
(b), (c), and (d) above. 
(b) Except as allowed under section 2477.14(b), no person in this State, including, 
but not limited to, manufacturers, distributors, dealers, auctioneers, and motor 
carriers shall sell, or offer to sell, to an  ultimate purchaser who is a resident of 
this State or a person that could reasonably be expected to do business in this State a new or used TRU or TRU gen set engine that does not meet the 
performance requirements or alternatives set forth in sectionsections 2477.5(a), 
(b), (c), and (d) above. 
(1) If a noncompliant TRU or TRU gen set  is sold to a person who is a 
resident outside this State, then the bill of sale shall disclose to the buyer 
that the TRU or TRU gen set is not compliant for use in California and the 
TRU or TRU gen set mustshall meet the in-use performance 
standardsrequirements of section 2477.5 before operating in the State, 
and if the TRU is based in the State, then it must be registered in 
ARBER.reported to CARB. The following statement mustshall be 
included in the bill of sale of any noncompliant TRU or TRU gen set: “This 
TRU does not currently meet Ca lifornia’s in-use performance 
standardsrequirements under title 13, California Code of Regulations, section 2477.5, and is therefore no t compliant for use in California.” 
(2) No owner of a TRU that is equipped with an Alternative Technology 
under section 2477.5(ac)(3) (e.g.., hybrid  electric or electric standby) shall 
sell the TRU or TRU gen set, without disclosing in writing that it mustshall 
be used in a way that qualifies it as an Alternative Technology in accordance with section 2477.5(ac)(3) in order to be compliant. 
(c) No person in this State, including, but not limited to, manufacturers, 
distributors, dealers, and carriers shall lease, offer to lease, rent, or offer to rent, 
in this state any new or used TRU or TRU gen set engine that does not meet the 
performance requirements or alternatives set forth in sectionsections 2477.5(a), 
(b), (c), and (d) above. 
(d) Operators of affected facilities and o perators of affected TRUs and TRU gen 
sets are prohibited from taking action to  divert affected TRUs to alternative 
staging areas in order to circumvent the requirements of this section. 
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 Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
§ 2477.19. Non-compliance and Penalties. 
(a) All persons, as defined in section 19 of the Health and Safety Code, found to be 
in violation of title 13, CCR, secti ons 2477 through 2477.18 may be cited and 
subject to the penalty provisions set forth  in Health and Safety Code sections 
39674, 39675, 42400 et seq., 42402 et seq., and 42410. Where a violation involves multiple TRUs, TRU gen sets,  or TRU engines, there is a separate 
violation for each such unit. 
(1) For purposes of enforcement, if a TRU, TRU gen set, or applicable facility 
is cited for non-compliance with this TRU Regulation and neither the 
owner nor the operator can produce evidence of the party responsible 
for compliance with State laws, then the owner of the TRU, TRU gen set, or applicable facility in violation shall be liable for any non-compliance 
(b) Failure to keep records, failure to report, or submittal of false information is a 
violationare each separate violations of this ruleTRU Regulation subject to 
penalty. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
39674, 39675, 42400, 42400.1, 42400.2, 42400.3.5, 42402, 42402.2, 42410, 43013 
and, 43018, and 43019.1, Health and Safe ty Code. Reference: Sections 39618, 39650, 
39658, 39659, 39666, 39667, 39674, 39675, 42400, 42400.1, 42400.2, 42400.3.5, 
42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health and Safety 
Code. 
§ 2477.20. Reporting 
(a) Reporting Method. Submission of informa tion to CARB required under this TRU 
Regulation, including registration, reporting, and submission of applications, 
shall be by one of the following methods: 
(1) Mail or deliver to CARB at the address listed immediately below: 
California Air Resources Board 
Transportation and Toxics Division (TRU) 
P.O. Box 2815 Sacramento, CA 95812 
(2) Electronically submit by email to: arber@arb.ca.gov; or 
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 (3) Electronically submit through CARB’s online system. 
(b) Recordkeeping. All records required under this TRU Regulation shall be kept for 
a minimum of three (3) years and shall be compiled and made available to CARB upon request. 
(c) Statement of Accuracy. All informatio n submitted to CARB as required under 
this TRU Regulation shall be accompanied by the following statement, signed 
by the TRU owner, applicable facility owner , or responsible official: “I certify 
under penalty of perjury under the laws of the State of California that the 
information provided is true, accurate, and complete.” 
(d) Automated monitoring for electronic tra cking systems. For a unit that uses an 
electronic tracking system, the information collected from that system shall include all of the following for each stationary location lasting more than 300 
seconds (5 minutes): 
(1) CARB IDN of the unit. 
(2) Date. 
(3) Address of the stationary location. This record may be the GPS 
coordinates and a location code for each stationary location, provided 
the owner or operator also provides a cross-reference of location codes 
with the correspondin g physical addresses. 
(4) Time of arrival and departure, and the elapsed time calculated from those readings to show the duration of the stationary position. 
(5) Engine hour meter readings taken at arrival and departure and the 
elapsed time calculated from those readings to show the TRU engine run 
time while the vehicle is at the stationary location. 
(6) Zero-emission system, such as electric motor or cryogenic system, hour meter readings taken at arrival and departure and the elapsed time that 
the zero-emission system is powering the refrigeration system while the 
vehicle is at the stationary location. 
(7) A report that lists all stationary lo cations lasting more than 5 minutes 
where the TRU engine operated for more than 30 minutes, resulting in a violation. 
(e) Placement of the CARB IDN. A CARB IDN shall be permanently affixed or painted on the TRU chassis in cl ear view according to the following 
specifications: 
(1) The CARB IDN shall be preceded by the letters “ARB”. 
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 (2) Letters and numbers shall contrast sharply in color with the color of the 
background surface on which the letters are placed. 
(3) The location of the I.D. number shall be as follows: 
(A) Truck and trailer TRUs - both sides of TRU chassis housing. 
(B) Rail car and shipping container TRUs - both sides of the TRU. 
(C) TRU gen sets - both sides of gen set housing. 
(4) Letters and numbers shall be readily legi ble during daylight hours, from a 
distance of 50 feet (15.24 meters) while unit is stationary. 
(5) Markings shall be kept maintained in a manner that retains the legibility 
required by the subparagraph immediately above. 
(6) Owners or owner/operators may use alternative unique equipment 
identification markings instead of  affixing a CARB IDN, provided the 
following conditions are met: 
(A) The owner or owner/operator shall report the TRU to CARB as 
required in section 2477.5(g) and provide the unique equipment 
number. 
(B) The alternative identification number shall be truly unique. Examples of unique identification numbers include the Reporting 
Marks that are issued by the Amer ican Association of Railroads’ 
contractor, RailInc, for their UMLER system and the BIC Codes 
issued by Bureau International de Containers. Company 
equipment numbers that are not truly unique on a worldwide basis 
do not qualify. 
(C) Alternative identification numbers shall be affixed or attached to both sides of the TRU gen set, shipping container (if the TRU is permanently attached), semitrailer, or railcar and meet all of the 
requirements of subparagraph 2477.20(e). 
(f) TRU Reporting Information. For each TR U, the owner or owner/operator shall 
report to CARB all of the following information: 
(1) Company Information 
(A) Company/business name, address, and contact information for the 
responsible official (e.g., title, phone number, email address). 
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  (B) Company/business tax identification number/federal employer 
identification number (EIN) or equival ent for other country (e.g., 
Canadian Business Number). 
(2) Rental or lease status. Indicate if the unit is a rental unit (no contract 
term) or a lease unit (under contract te rm, typically more than one year). 
(3) Reporting identity indication. Indicate  who is reporting the TRU, either: 
(A) The owner (or an employee of owner), or 
(B) A third party reporting the TRU under a third party agreement between the owner or lessor and a consultant or lessee. 
(4) TRU, TRU gen set, or ZE truck TRU unit information: 
(A) Unit Type: 1. Truck TRU; 
2. Trailer TRU; 
3. Refrigerated railcar TRU; 
4. Refrigerated domestic shipping container TRU; or  
5. TRU generator set. 
(B) Indicate if the unit is ZE 
(C) Unit manufacturer, 
(D) Unit model, 
(E) Unit model year, and 
(F) Unit serial number. 
(G) Date TRU was purchased, rented, or leased. 
(5) Other TRU identifying numbers. Provide all that apply: (A) If unit is installed on a truck or trailer, provide: 
1. Vehicle Identification Number (VIN), and 
2. Vehicle license number, country of issuance, and state or 
province of issuance; 
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 3. Unique Bureau International de Container (BIC) Code, if 
trailer is multimodal 
(B) If unit is installed on refrigerated railcar, provide railcar reporting mark; 
(C) If unit is installed on domestic refrigerated shipping container, provide unique BIC Code; 
(D) If unit is a TRU gen set, provide unique BIC Code; 
(E) Provide company equipment number if company has labeled the equipment. 
(6) TRU status information. Indicate if the unit is: 
(A) Active (unit is operational); 
(B) Removed from service (unit is scrapped or inactive for foreseeable 
future); or 
(C) Sold. If last reported owner sold unit, then they shall provide: 
1. Date of sale, and 
2. New owner’s company name, address, and contact 
information 
(7) TRU engine information. Provide the following: 
(A) Engine manufacturer; 
(B) Engine model; 
(C) Engine model year, or “MY”; 
(D) Engine serial number; 
(E) Engine power rating. Indicate either: 1. Under 25 hp (under 19 kW), or 
2. 25 hp or greater (19 Kw or greater); 
(F) Engine family; and 
(G) Emissions standard tier that engine meets. 
(8) Compliance information. 
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 (A) Refrigerant type 
1. Indicate if the TRU has a TRU OEM supplied refrigerant 
label. 
(B) If the unit is a ZE truck TRU used to comply with section 2477.5(b), then: 
1. Provide the technology type: a. Battery-electric; 
b. Cryogenic temperature controlled system; 
c. Cold plate system; 
d. Powered by fuel cells; or 
e. Other 
2. Provide information on zero emission fueling Infrastructure: 
a. Physical address of zero-emission fueling 
infrastructure installed or to be installed. 
b. Specify the number of ZE fuel connections, and types of connectors. 
c. If storing fuel on site, specify the number of storage tanks and the tank storage capacity. 
d. If storing electricity on site, specify the number of batteries and battery capa city, in kilowatt-hours 
(kWh). 
e. If generating fuel on site, specify the quantity of generators and expected power output. 
f. For solar generation, specify the number of panels and kilowatt-hour (kWh) rating per panel, as well as expected annual power generation. 
g. For hydrogen fuel cells, specify the number of cells and the rated kilowatt (kW) per cells, as well as the expected annual power generation. 
(C) If the unit has a VDECS retrofit, then: 
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 1. Provide the following from the VDECS label: 
a. VDECS manufacturer name; 
b. VDECS family name; 
c. VDECS serial number; 
d. VDECS manufacture year; and 
2. Provide the VDECS installation date. 
3. Provide the VDECS installer name 
4. Provide the VDECS installer address 
5. Provide the VDECS installer phone number 
(D) If the engine currently in the unit is a rebuilt replacement engine, 
then: 1. Provide the emissions standard  tier that the engine meets; 
2. Provide the rebuild year; and 
3. Provide the installation date. 
(E) If the engine currently in the unit is a new replacement engine, 
then: 
1. Provide the emissions standard  tier that the engine meets; 
and 
2. Provide the installation date. 
(F) If the unit uses an Alternative Technology option under section 
2477.5(c)(3), then provide: 
1. The type used: 
a. Electric standby-equipped TRU or hybrid electric 
TRU; 
b. Hybrid cryogenic temperature controlled system; 
c. Alternative–fueled engine; 
d. Fueled exclusively with pure alternative diesel fuel; 
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 e. Powered by fuel cells; or 
f. Other system approved by  the Executive Officer. 
2. The date the technology was installed or employed.  
(9) Indicate what state or provin ce that the TRU is based in: 
(A) California; or 
(B) Outside of California. If based outside of California identify: 
1. U.S. state; 
2. Mexican state; or 
3. Canadian province. 
(10) Certification that the TRU operator  is appraised of their obligations 
under this regulation. 
(g) Application for Mobile Catering Service Exemption. Applications for Mobile 
Catering Service Exemption shall include all of the following information: (1) Business name. 
(2) Business street address, state, zip code. 
(3) Business phone number. 
(4) Responsible official’s name. 
(5) Responsible official’s mo bile phone number. 
(6) Federal Tax Identification Number (EIN) and Owner-Operator Number 
(OON) issued to the owner by CARB. 
(7) A list of CARB IDNs issued by CARB for all TRUs that are to be included 
under the exemption. For TRUs that are not in compliance with the 
requirements under section 247 7(a), (b), (c), or (d) that do not have CARB 
IDNs, provide the unit serial number instead of the IDN on this list. 
(8) A copy of the mobile catering company’s contract with the National Interagency Fire Center shall be provided with the application. 
(h) Application for Compliance Extension Based on Unavailability of Compliance Technology. An application for a compliance extension based on the unavailability of compliance technology shall do all of the following: 
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 (1) Identify each unit and engine for which the extension is requested. 
(2) For each engine identified in (1), prov ide a detailed description of the 
reasons and factors that serve as the basis for the applicant’s claim that 
no suitable control technologies ar e available. The description shall 
include, without limitation, detailed engineering diagrams and 
calculations that support the applican t's claim that there are no suitable 
control technologies available. 
(3) Demonstrate that all other units covered by this TRU Regulation and 
subject to the applicant’s direct control meet the requirements of this 
TRU Regulation. 
(i) Application for Compliance Extension Based on Delays. An application for a compliance extension based on delays shall: 
(1) Explain in detail why a compliance extension is needed and how much 
additional time is required to comply. 
(2) If delivery is the cause for delay, explain the status, and provide 
documentation from the manufacturer to demonstrate this is true, along with an updated delivery schedule. 
(3) If installation is the cause for delay , report the date that compliance 
technology was delivered, explain the installation status and provide documentation from the installer to demonstrate the facts, along with an updated installation schedule. 
(4) If there are other circumstances ca using the delay, such as financing, 
explain the status and provide document ation from the financier or other 
relevant entity to demonstrate this  is true, along with an updated 
schedule. 
(5) If the delay is related to installation of zero-emission fueling infrastructure: 
(A) Documentation that the owner ordered the zero-emission fueling 
infrastructure no later than 3 months before the compliance date. 
(B) If requesting an extension for the entire truck TRU fleet, documentation why partial infrastructure installation is not viable. 
(C) If an electric service upgrade is needed, a statement from the Utility is required that specifies t he type of upgrade (distribution 
line extensions, new distribution  circuits, substation upgrade, new 
substation, or new subtransmission line) and the estimated number of days for the utility to complete the work. 
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 (D) Efforts taken to mitigate future need for the extension. 
(j) Application for a Safe Passage Permit. An application for safe passage shall 
include all of the following information: 
(1) Owner’s name. 
(2) Business name (if different). 
(3) Owner’s street address, state, zip code. 
(4) Contact person’s name. 
(5) Contact person’s business phone number. 
(6) Date(s) transport will take place. 
(7) Statement that the reason for tra nsporting the noncompliant equipment 
on California highways is strictly to take the noncompliant equipment to 
a dealer or installer to bring the equipment into compliance. 
(8) TRU or TRU gen set serial number. 
(9) Vehicle Identification Number (VI N), BIC Code (for TRU gen sets and 
domestic shipping containers), or railcar reporting mark. 
(10) Physical address of starting location or point of entry into California. 
(11) Dealer’s or installer’s business name and physical address where compliance technology will be installed. 
(k) Third-party Agreement Confirmation In formation. For each leased unit, the 
lessor shall submit all of the following information to CARB: 
(1) Unit serial numbers for each TRU or TRU gen set; 
(2) Unique company equipment number; 
(3) Vehicle license number; 
(4) Vehicle Identification Number (VIN); 
(5) Lessor company name, address, federal tax ID (EIN), contact person, and 
contact information; 
(6) Lessee company name, address, federal  tax I.D (EIN), contact person, 
and contact information; 
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 (7) Copy of the contract pages of the lease contract with the language 
highlighted that identifies the lessee as the responsible party for 
reporting to CARB, paying TRU operating fees, and affixing CARB compliance labels; and 
(8) Owner’s/lessor’s or responsible official’s signature, after the statement: “I certify under penalty of perjury under th e laws of the State of California 
that TRU or TRU gen set is compliant with applicable California regulations.” 
(l) Original Equipment Manufacturer Monthly Production Reports. A TRU OEM production report shall include, for the previous calendar month for each TRU 
or TRU gen set produced for sale in California, North America, Canada, or Mexico: 
(1) Unit model name, as it appears on the unit label; 
(2) Unit serial number; 
(3) Engine manufacturer; 
(4) Engine model, as it appears on the engine emissions label; 
(5) Engine model, as it appears on the serial number label, if different; 
(6) Engine .family; 
(7) Engine serial number; 
(8) Rated horsepower an d rated speed; and 
(9) Engine emission tier standard met. 
(10) If the unit is equipped an OEM VDECS, then provide the following: (A) VDECS manufacturer name 
(B) VDECS family name 
(C) VDECS serial number 
(11) Indicate if the unit is ZE 
(12) Indicate if the unit is electric-standby equipped or hybrid electric 
(13) Refrigerant type 
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  (m) TRU Activity at a Facility. A report of TRU activity at a facility shall include all of 
the following information for each TRU that operates inside the facility fence 
line or property boundary: 
(1) Truck TRU information. 
(A) CARB IDN 
(B) Entry date and time 
(C) TRU operator’s (or truck driver's) name 
(D) TRU operator’s (or truck driv er’s) driver’s license number 
(E) Truck license plate number 
(2) Trailer TRU or DSC TRU information. 
(A) CARB IDN (or if one is used, the alternative unique equipment 
identification number reported to CARB under section 
2477.20(e)(6)) 
(B) Entry date and time 
(C) Trailer or container owner’s company name 
(D) If unit is a trailer TRU, provi de the trailer license plate number  
(E) If trailer TRU or DSC TRU entered facility by truck, provide:  
1. TRU operator’s (or truck driver/tractor driver's) name  
2. TRU operator’s (or truck driver/tractor driver's) driver’s 
license number 
3. Truck owner/tractor owner’s company name  
4. Truck/tractor license plate number 
(3) Railcar TRU information (not required for railcar TRUs that pass through and do not stop at a railyard)  
(A) CARB IDN (or if one is used, the alternative unique equipment 
identification number reported to CARB under section 2477.20(e)(6)) 
(B) Entry date and time 
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 (4) TRU gen set information. 
(A) CARB IDN (or if one is used, the alternative unique equipment 
identification number reported to CARB under section 2477.20(e)(6)) 
(B) Entry date and time 
(C) TRU gen set owner’s company name 
(D) If TRU gen set entered facility by truck, provide:  
1. TRU operator’s (or truck driver/tractor driver's) name  
2. TRU operator’s (or truck driver/tractor driver's) driver’s 
license number 
3. Truck/tractor owner’s company name 
4. Truck/tractor license plate number 
§ 2477.21. Fees 
(a) TRU Operating Fees. The term TRU as used in this subsection (a) refers to TRUs 
and TRU gen sets, as well as ZE truck TRUs used to comply with section 
2477.5(b). 
(1) Beginning December 31, 2023, the Ex ecutive Officer shall assess and 
collect fees from owners or owner/oper ators of TRUs that operate in 
California to recover the costs to t he Executive Officer administering the 
TRU ATCM. 
(2) Fees shall be due and payable to the Ex ecutive Officer upon reporting a 
TRU in accordance with section 2477.5 (g) and every three (3) years from 
the date the TRU was originally reported to CARB  
(3) A TRU owner or owner/operator shall submit fees to the Executive 
Officer in accordance with the fee schedule in Table 5. 
Table 5: TRU Operating Fee Schedule 
Fee Type Fee Amount 
(Per TRU) 
TRU Operating Fee, paid once every three years $54 
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 Zero-Emission TRU Operating Fee, paid $27 
once every three years 
(b) Applicable Facility Registration Fees. 
(1) Beginning December 31, 2023, the Ex ecutive Officer shall assess and 
collect fees from owners or owner/oper ators of applicable facilities in 
California to recover the costs to t he Executive Officer administering the 
TRU ATCM. 
(2) Fees shall be due and payable to the Executive Officer upon registering 
an applicable facility in accordance with section 2477.17(a) and every three (3) years from the date of original registration. 
(3) An applicable facility owner or o wner/operator shall submit fees to the 
Executive Officer in accordance with the fee schedule in Table 6. 
Table 6: Applicable Facility Registration Fee Schedule 
Fee Type Fee Amount 
(Per Facility) 
Facility Registration Fee, paid once every $54 
three years 
§ 2477.22. Relationship to Other Law 
Nothing in this section allows TRUs or TR U gen sets to operate in violation of other 
applicable law, including, but not limited to: 
(a) California Vehicle Code. 
(b) California Health and Safety Code. 
(c) Any applicable ordinance, rule, or r equirement as stringent as, or more 
stringent than, the requirements of this regulation. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013, 43018, and 43019.1, Health and Sa fety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 43013, 43018, and 43019.1, Health and Safety 
Code. 
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 § 2477.23.2477.20 Authority to Re quest Additional Information. 
The Executive Officer may request that addi tional information be submitted as part of 
the review of any extension application, ex emption, or other action that delays or 
defers a compliance date or action. 
Note: Authority cited: Sections 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1, Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013, 43018, and 4301843019.1, Health 
and Safety Code. 
§ 2477.21.24. Severability. 
If any subsection, paragraph, subparagraph, sent ence, clause, phrase, or portion of 
this regulation is, for any reason, held invalid, 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 3 9600, 39601, 39618, 39658,  39659, 39666, 39667, 
43013and, 43018, and 43019.1 Health and Safety Code. Reference: Sections 39618, 
39650, 39658, 39659, 39666, 39667, 39674,  39675, 42400, 42400.1, 42400.2, 
42400.3.5, 42402, 42402.2, 42410, 40717.9, 43013and, 43018, and 43019.1, Health 
and Safety Code. 
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