16.0 Vehicle Replacement, Retrofits, and Repowering

Programs to encourage emissions reduction by the “3Rs” - the replacement of existing vehicles with lower-emitting ones, or the use of repowering or retrofits to reduce vehicle emissions.

Introduction

Vehicle emission rates can be reduced through the purchase of motor vehicles, including hybrids, electric, or alternative fuel vehicles certified to pollute less than typical new vehicles. Programs that provide complete engine replacements or retrofits that result in lower pollution may also be implemented. This measure has received emphasis in federal transportation legislation, and can be funded through CMAQ in eligible areas.

Clean vehicle programs are often instituted to take advantage of available funding and improve existing fleets.

Truck fleets also incorporate some elements of vehicle retrofits and replacement strategies into truck efficiency programs. These programs usually include a broader range of emissions reduction and fuel-saving strategies including operational measures, trailer lightweighting and aerodynamic devices.