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As Amended: December 6, 2012

Date of Hearing: November 15, 2012

California Environmental Protection Agency

AIR RESOURCES BOARD

CALIFORNIA EXHAUST EMISSION STANDARDS AND TEST 

PROCEDURES FOR

2018 AND SUBSEQUENT MODEL ZERO-EMISSION VEHICLES AND 

HYBRID ELECTRIC VEHICLES, IN THE PASSENGER CAR, LIGHTDUTY TRUCK AND MEDIUM-DUTY VEHICLE CLASSES

Adopted: March 22, 2012

Amended: December 6, 2012

Note: The proposed amendments to this document are shown in underline to indicate 

additions and strikeout to indicate deletions compared to the test procedures as 

adopted March 22, 2012. [No change] indicates proposed federal provisions that are 

also proposed for incorporation herein without change. Existing intervening text that is 

not amended in this rulemaking is indicated by “* * * *”.
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As Amended: December 6, 2012

Date of Hearing: November 15, 2012

NOTE: This document is incorporated by reference in section 1962.2, title 13, California 

Code of Regulations (CCR). Additional requirements necessary to complete an 

application for certification of zero-emission vehicles and hybrid electric vehicles are 

contained in other documents that are designed to be used in conjunction with this 

document. 

CALIFORNIA EXHAUST EMISSION STANDARDS AND TEST PROCEDURES FOR

2018 AND SUBSEQUENT MODEL ZERO-EMISSION VEHICLES AND

HYBRID ELECTRIC VEHICLES, IN THE PASSENGER CAR,

LIGHT-DUTY TRUCK AND MEDIUM-DUTY VEHICLE CLASSES

* * * * *

C. Zero-Emission Vehicle Standards.

* * * * *

3. Transitional Zero-Emission Vehicles (TZEV).

* * * * *

3.2 TZEV Requirements. In order for a vehicle to be eligible to receive a 

ZEV allowance, the manufacturer must demonstrate compliance with all of the following 

requirements: 

* * * * *

(b) Evaporative Emissions. Certify the vehicle to the evaporative emission 

standards in subdivision 1976(b)(1)(G). or 1976(b)(1)(E) Manufacturers may certify 

2018 and 2019 TZEVs to the evaporative standards for PCs and LDTs in subdivision 

1976(b)(1)(E);

* * * * *

3.3 Allowances for TZEVs.

(a) Zero-Emission Vehicle Miles Traveled TZEV Allowance Calculation. A 

vehicle that meets the requirements of subdivision C.3.2 and has zero-emission vehicle 

miles traveled (VMT), as defined by and calculated by this test procedure and measured 

as equivalent all electric range (EAER) capability will generate allowance according to 

the following equation:
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As Amended: December 6, 2012

Date of Hearing: November 15, 2012

UDDS Test Cycle Range 

(EAER) Allowance 

<10 all electric miles 0.00

≥10 miles range TZEV Credit = [(0.01) * EAER + 0.30]

>80 miles (credit cap) 1.10

(1) Allowance for US06 Capability. TZEVs with US06 all electric range 

capability (AER) of at least 10 miles shall earn an additional 0.2 allowance. US06 test 

cycle range capability shall be determined in accordance with section E.8G.7.5 of these 

test procedures.

* * * *

7. Generation and Use of ZEV Credits; Calculation of Penalties

* * * * *

7.6 Use of ZEV Credits. 

* * * * *

(c) GHG-ZEV Over Compliance Credits.

(1) Application. Manufacturers may apply to the Executive Officer, no later 

than December 31, 2016, to be eligible for this subdivision C.7.6(c), based on the 

following qualifications:

(A) A manufacturer must have no model year 2017 compliance debits 

and no outstanding debits from all previous model year compliance with 

sections 1961.1 and 1961.3, or compliance with the National greenhouse 

gas program as allowed by subdivisions 1961.1(a)(1)(A)(ii) and 1961.3(c), 

and

(B) A manufacturer must have no model year 2017 compliance debits 

and no outstanding debits from all previous model year compliance with 

section 1962.1, and 

(C) A manufacturer must submit documentation of its projected product 

plans to show over compliance with the manufacturer’s section 1961.3 

requirements, or over compliance with the National greenhouse gas 

program requirements as allowed by subdivision 1961.3(c) by at least 2.0 

gCO2/mile in each model year through the entire 2018 through 2021 

model year period.
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As Amended: December 6, 2012

Date of Hearing: November 15, 2012

(2) Credit Generation and Calculation. Manufacturers must calculate their 

over compliance with section 1961.3 requirements, or over compliance with the National 

greenhouse gas program requirements as allowed by subdivision 1961.3(c) for model 

years 2018 through 2021 based on compliance with the previous model year standard. 

For example, to generate credits for this subdivision C.7.6(c) for model year 2018, 

manufacturers would calculate credits based on model year 2017 compliance with 

section 1961.3, or compliance with the National greenhouse gas program requirements 

as allowed by subdivision 1961.3(c). 

(A) At least 2.0 gCO2/mile over compliance with section 1961.3, or over 

compliance with the National greenhouse gas program as allowed by 

subdivision 1961.3(c) is required in each year and the following equation 

must be used to calculate the amount of ZEV credits earned for purposes 

of this subdivision C.7.6(c):

[(Manufacturer US PC and LDT Sales) x (gCO2/mile below manufacturer GHG 

standard for a given model year)] / (Manufacturer GHG standard for a given 

model year)

(B) Credits earned under sectionsubdivision 1961.3(a)(9), or credits 

earned under 40 CFR, part 86, Subpart S, 86.1866-12(a), 86.1866-12(b), 

or 86.1870-12 may not be included in the calculation of gCO2/mile credits 

for use in the above equation in subdivision (A). All ZEVs included in the 

calculation above must include associated upstream emission values 

found in section 1961.3.

(C) Banked gCO2/mile credits earned under 1961.1 and 1961.3, or 

under the National greenhouse gas program requirements as allowed by 

subdivision 1961.3(c) from previous model years or from other 

manufacturers may not be included in the calculation of gCO2/mile credits 

for use in the above equation in subdivision (A).

(3) Use of GHG-ZEV Over Compliance Credits. A manufacturer may use no 

more than the percentage enumerated in the table below to meet either the total ZEV 

requirement nor the portion of their ZEV requirement that must be met with ZEV credits, 

with credits earned under this subdivision C.7.6(c). 

Credits earned in any given model year under this subdivision C.7.6(c) may only be 

used in the applicable model year and may not be used in any other model year. 

Credits calculated under this provision must also be removed from the GHG compliance 

bank, and cannot be banked for future compliance toward section 1961.3, towards 

compliance with the National greenhouse gas program requirements as allowed by 

subdivision 1961.3(c). 

2018 2019 2020 2021

50% 50% 40% 30%
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As Amended: December 6, 2012

Date of Hearing: November 15, 2012

(4) Reporting Requirements. Annually, manufacturers are required to submit 

calculations of credits for this subdivision C.7.6(c) for the model year, any remaining 

credits/debits from previous model years under section 1961.3, or under the National 

greenhouse gas program requirements as allowed by subdivision 1961.3(c), and 

projected credits/debits for future years through 2021 under section 1961.3, or under 

the National greenhouse gas program requirements as allowed by subdivision 1961.3(c)

and this subdivision C.7.6(c). 

If a manufacturer, who has been granted the ability to generate credits under this 

subdivision C.7.6(c), fails to over comply by at least 2.0 gCO2/mile in any one year, the 

manufacturer will be subject to the full ZEV requirements for the model year and future 

model years, and will not be able to earn credits for any other model year under this 

subdivision C.7.6(c).

(5) If the Executive Officer does not make a determination that a Federal 

greenhouse gas fleet standard is functionally equivalent to subdivision 1961.3, than this 

subdivision C.7.6(c)(1) through (4) is unavailable for use by any manufacturer. 

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