Diesel Retrofil Assessment
NYSDOT is mandated by law to retrofit its existing diesel engine fleet with Best Available Retrofit Technology. This means a Tier 3 USEPA or California Air Resources Board (CARB) approved technology. During the period when equipment is being retrofitted and after installation, existing service levels (duty cycles) must be maintained, so NYSDOTs public safety role for removing snow and ice and responding to emergencies is not compromised. If Tier 3 technology is unpractical, Tier 2 Technology will be evaluated. If Tier 2 technology is unpractical, Tier 1 technology will be evaluated
OBJECTIVES
Determine what technology will allow NYSDOT to achieve compliance with the law without
negatively impacting NYSDOT's ability to provide critical public safety and health services, such
as snow and ice control and emergency response. This technology will ideally be "passive",
meaning the technology will not require off board, regeneration, cleaning, or servicing of the
retrofit equipment, beyond normal preventive maintenance schedules of once per calendar
quarter. Determine the compliant equipment which achieves the highest emissions reduction at
lowest total life cycle cost including but not limited to purchase, maintenance, engineering and
installation.
