The purpose of the MassCleanDiesel: Vehicle Repower Program is to reduce public and worker exposure to  diesel emissions in and around facilities that handle bulk materials, including road salt storage and distribution facilities, asphalt and concrete plants, and stone/sand mining or quarrying operations. 

The Massachusetts Department of Environmental Protection (MassDEP) will provide funding assistance to owners of Caterpillar diesel-powered off road wheel loaders from 125 to 299 rated horsepower who want to replace their old, dirty engines with new or rebuilt engines that meet more stringent emission standards. Eligible applicants will receive up to 50 percent of the part and labor costs of re-powering their vehicles.

See Fact Sheet: Vehicle Repower Program Grants pdf format of Fact Sheet: Vehicle Repower Program Grants
doc format of mcdvrpfs.doc for additional information.

Program Benefits

By replacing an unregulated Tier 0 engine (i.e., uncontrolled diesel emissions from older and dirtier engines in the diesel fleet) with a Tier 1 engine, diesel emissions are significantly reduced. The table below shows by how much components of diesel emissions are reduced by repowering an older and dirtier Tier 0 engine with a more efficient Tier 1 engine (Note: Tier 1 emission standards were adopted in 1994 and phased-in between 1996 and 2000).   

Engine
Size

Engine Emission 
Conditions

Emissions Per Vehicle (t/yr)

NOx

PM2.5

HC

CO

Total

175
Hp

Tier 0 Uncontrolled

1.06

0.07

0.09

0.62

1.84

Tier 1 Standards

0.71

0.04

0.04

0.16

0.95

Net Reductions

0.35

0.03

0.05

0.46

0.89

300
Hp

Tier 0 Uncontrolled

1.85

0.15

0.16

1.11

3.27

Tier 1 Standards

1.24

0.09

0.07

0.29

1.69

Net Reductions

0.61

0.0

0.09

0.82

1.58

Emission reductions are calculated assuming that the vehicle operate on average 1,500 hours per year. 
(t/y) = tons per year

In addition to the environmental and health benefits of the vehicle repower, the cleaner/newer engines may improve the vehicle’s performance resulting in fuel savings.

How to Apply

Complete the application form and submit it to MassDEP no later than 5:00 p.m. on April 30, 2014.

Contacts for Additional Information

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