Available Voucher Funds
All Approved Technologies
$ -149,032,089
Small Fleet Low NOx NG
$ 0

Approved Technologies Include Zero Emission, Low NOx, and ePTO

Low NOx Natural Gas Engines

HVIP provides attractive incentives for the purchase of CARB-approved Low NOx natural gas engines. Incentives for Low NOx natural gas engines are available for new and repowered vehicles on a first-come, first-served basis. Effective October 25, 2019, the only Low NOx technology eligible for HVIP funding is the 11.9L Low NOx natural gas engine, using in-state produced Renewable Natural Gas. (Cummins Westport 11.9 liter natural gas engine certified to 0.02 g/bhp-hr NOx standard which is 90 percent below the current NOx standard).

The Incentive Value for Low-NOx Vouchers for New Vehicles is $45,000. Repowers using the ISX12N qualify for a $52,000 voucher.

Currently, incentives for Low NOx natural gas engines are designed to cover the incremental cost of a Low NOx natural gas engine relative to a baseline diesel engine.

Stacking, or combining HVIP funding with other public programs, is allowed in a limited number of cases. Stacking continues to be allowed with local incentive programs as long as both programs are not paying for the same incremental costs. Stacking with other state incentives such as the Carl Moyer Program or AB 617 Community Air Protection Program is only available for public transit buses, after maximum funding from the non-HVIP program.

HVIP stacking is not available for vehicles funded by the Proposition 1B Goods Movement Emission Reduction Program, the Volkswagen Environmental Mitigation Trust, or for trucks and buses funded by the California Energy Commission. HVIP-funded vehicles may access infrastructure funded by any other funding sources.

Renewable Natural Gas Requirement

Effective October 25, 2019, fleets that receive HVIP incentives for Low NOx natural gas engines must use 100% California-produced Renewable Natural Gas (RNG) for a minimum of three years. More details will be forthcoming.

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