Massachusetts Zero Emission Vehicle (ZEV) Credits

MassDEP requires large and intermediate volume vehicle manufacturers to deliver and place in service within the state a certain percentage of zero emission vehicles (ZEVs) - including battery electric, fuel cell, and plug-in hybrid vehicles.

This page provides current and historical information on ZEV credits earned by large and intermediate volume manufacturers in Massachusetts. A PDF version of this page, providing data on the current compliance year, is available for download from Historical Information below.

Table of Contents

Affected Manufacturers

The following vehicle manufacturers were subject to Massachusetts ZEV requirements for compliance year 2020.

Manufacturer Volume Status
LargeIntermediate
BMWJaguar Land Rover
Daimler AGMazda
Fiat ChryslerSubaru
FordVolvo
General Motors 
Honda 
Hyundai 
Kia 
Nissan 
Toyota 
Volkswagen 

Massachusetts Vehicle Sales

A vehicle manufacturer’s ZEV requirement is based on a percentage of all passenger vehicles and light-duty trucks (LDTs) weighing up to 8,500 pounds that it delivers for sale in the state.

2020 Large & Intermediate Volume Manufacturer Vehicles Delivered for Sale in Massachusetts
ManufacturerLight-Duty Passenger
Cars & Trucks
BMW7,981
Daimler AG6,979
Fiat Chrysler32,006
Ford23,493
General Motors28,471
Honda37,020
Hyundai14,133
Jaguar Land Rover3,724
Kia1,801
Mazda6,569
Nissan15,321
Subaru20,146
Toyota45,885
Volkswagen12,088
Volvo4,345
Total259,962

ZEV Credit Balances

Vehicle manufacturers subject to the ZEV requirements earn varying ZEV credits depending on the numbers and types of vehicles they deliver and place in service within Massachusetts. Companies not subject to the requirements may also earn credits. ZEV credit balances earned by all parties since the start of the Massachusetts ZEV program through August 31, 2021, are presented here.
See the note and legend of acronyms below.*

ManufacturerFCVBEVBEVxNEV+DISCOUNT AT PZEV & PZEVTZEV
BMW0.001,505.243,660.320.000.000.00
Fiat Chrysler0.0024,925.000.0013,805.780.000.00
Ford0.0015,315.850.00971.74378.04302.96
General Motors0.0028,782.360.007,761.460.003,337.28
Honda2,325.745,781.730.00265.930.000.00
Hyundai668.371,320.660.000.00306.7694.17
Jaguar Land Rover0.00567.620.000.000.0012.76
KIA0.002,627.510.000.00169.7942.70
Lightning Systems0.000.000.000.000.000.00
Mazda0.00516.880.000.000.000.00
Mercedes-Benz AG0.001,781.020.000.000.003,280.89
Mitsubishi0.00510.690.000.00331.01254.40
Nissan0.008,999.770.000.00(0.01)0.00
Polaris0.000.000.000.000.000.00
Subaru0.0030,338.490.000.001,080.28160.17
Tesla0.0028,657.410.000.000.000.00
Toyota0.0027,700.830.004,636.671,089.551,857.40
Volkswagen0.007,365.890.000.00(0.01)75.60
Volvo0.000.000.000.00405.65219.85
Zipcar0.000.000.000.0060.360.00
Total2,994.11186,696.943,660.3227,441.583,821.429,638.18

Description of Credit Balances:

*Each unit represents one ZEV credit. Before 2015, credits were expressed in grams per mile non-methane organic gas (NMOG).

Legend of Acronyms
FCV = Fuel cell vehicle
BEV = Battery electric vehicle 
BEVx = Range extended battery electric vehicle
NEV = Neighborhood Electric Vehicle
Discount AT PZEV & PZEV = Conversion of Advanced Technology Partial Zero Emission Vehicle (clean hybrids) and Partial Zero Emission Vehicle (clean gasoline) per California Code of Regulations, Title 17, Section 1962.1(g)(2)(f)
TZEV = Transitional Zero Emission Vehicle (plug-in hybrid)

Transfers of ZEV Credits

Manufacturers subject to the ZEV requirement and other companies that earn ZEV credits may transfer them among each other and to third parties. The following transfers were recorded in Massachusetts from October 1, 2020, to August 31, 2021.

TransferorVehicle TypeTotal Credits
TeslaBEV2,971.00
 Total2,971.00
TransfereeVehicle TypeTotal Credits
HondaBEV2,488.00
MitsubishiBEV   483.00
 Total2,971.00

Historical Information

Follow the links below for manufacturer, vehicle sale, ZEV Credit balance and transfer information for Massachusetts from previous years.

Additional Resources

Contact   for Massachusetts Zero Emission Vehicle (ZEV) Credits

Help Us Improve Mass.gov  with your feedback

Please do not include personal or contact information.
Feedback