HVIP is designed to make sales happen. Vouchers directly benefit purchasers and dealers – helping close the price gap between advanced technology vehicles and their conventionally fueled counterparts.

Upon its inception a decade ago, HVIP had an immediate impact on the market: From 2010-2012, nearly half of hybrid and zero-emission trucks and buses in the U.S. were purchased through HVIP. And that impact has grown: In 2018 alone, HVIP received $176 million in requests – more than all 8 previous years combined.


Delivery Vans
Bring packages to our doors
Utility Vehicles
Keep our neighborhoods serviced
Commercial trucks
Keep freight moving
School Buses
Serve our youngest community members

Public Health

A Disadvantaged Community (DAC) is an area in California that is especially vulnerable to the impacts of climate change because of socioeconomic and geographic factors. HVIP provides increased voucher incentive amounts for vehicles domiciled within DACs. The value of the voucher enhancement is 10% plus-up of the voucher amount, up to $15,000.

Offsetting diesel miles has health benefits related to reducing harmful pollutants such as NOx (linked to asthma) and Particulate Matter (linked to premature death in people with heart or lung diseases, as well as asthma and decreased lung function).

Photo shows California State Assembly Member and CARB Board Member Eduardo Garcia at HVIP’s 10th Anniversary Celebration in 2019. 

188 Million

Cleaner-than-diesel miles traveled in California by HVIP-funded vehicles, 2010 to 2020.

58% of Vouchers

have funded vehicles deployed in Disadvantaged Communities.

28% of U.S. Greenhouse Gas Emissions

are generated by the transportation sector, according to the U.S. EPA – the most of any sector. In California, medium- and heavy-duty on-road vehicles account for just 7% of all registered vehicles but 32% of NOx Emissions, according to CARB's 2020 Mobile Source Strategy.

Project 800

About the Project

CARB’s Project 800 initiative aims to support 800 zero-emission drayage truck orders to be placed in California in 2021. Sales made this year help jump-start this important market segment. These 800 advanced Class 8 trucks to serve California ports represent a first cut in a transformational period for zero-emission drayage truck technologies, aligned with Governor Newsom’s Executive Order (N-79-20). And planning is already underway to continue this momentum for the next 1,000 drayage trucks starting in 2022.  This webpage tracks progress toward the Project 800 goal and gathers sales data from HVIP and other public incentive programs, as well as through direct outreach to manufacturers. If you want to contribute to the tracker, please reach out to us!

800 Trucks by 2022

603 Vehicles
Campaign progress
We're over 75% there, help us get all the way!

Building the Green Economy to Meet Climate Goals

HVIP is a key component of the California Air Resources Board’s Low Carbon Transportation and Air Quality Improvement Program, which is focused on supporting the advanced technologies needed to meet California’s 2030 and 2050 climate goals.

HVIP’s decade of success exemplifies how government and industry are working together to reduce diesel emissions in new and visionary ways; achieving cleaner air in the most vulnerable communities, and statewide; and creating a pathway for sustainable transportation in California and beyond. These efforts are rooted in obtaining meaningful progress on climate goals while creating jobs and boosting economic competitiveness.

$400 million+

Total HVIP funding through 2020, supporting 1,400+ participating fleet purchasers


Vehicles and Natural Gas Engines that HVIP has helped deploy (including over 6,000 already on the road and 1,000 still in the process of being built). Funded technologies have included hybrids, natural gas, and a variety of zero-emission battery-electric and hydrogen fuel cell vehicles, as well as those powered with electric power takeoff (ePTO).

$2 billion

Additional dollars of other public and private spending toward these purchases — over $4 for every $1 of HVIP investment. Leveraged private spending represents purchases redirected from traditional technologies to clean technologies.

Voucher Data

Learn how HVIP-funded vehicles are benefiting California. Use filters below to explore deployed vehicles and requested vouchers. See the legend to understand the data. Interested in data that is not published here? Please contact CARB directly at 

Still have questions?

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HVIP Wave 3 Summary and Waitlist (11/15/2021)

HVIP Wave 3 Funding Summary and Waitlist November 15, 2021 HVIP opened to new voucher requests at 10 a.m. Thursday, (...)

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HVIP’s Third Wave of Funding Fully Requested (10/28/2021)

HVIP’s Third Wave of Funding Fully Requested October 28, 2021 The Hybrid and Zero-Emission Truck and Bus Voucher Incentive Project (...)

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Tracking Project 800

CARB’s Project 800 initiative aims to support 800 zero-emission drayage truck orders to be placed in California in 2021. Sales made (...)

Learn more
Important updates and notifications
View Important Updates and News About our Project!