Record Display for the EPA National Library Catalog


Main Title Nonroad diesel emission standards : staff technical paper /
CORP Author Environmental Protection Agency, Washington, DC. Office of Air and Radiation.
Publisher The Division,
Year Published 2001
Report Number EPA420-R-01-052
Stock Number PB2005-100237
OCLC Number 57489922
Subjects Diesel motor exhaust gas ; Diesel motor--Combustion ; Internal combustion engines--Exhaust emissions ; Air--Pollution
Additional Subjects Emissions standards ; Diesel engines ; Compression ignition engines ; Offroad vehicles ; Standards ; Air quality ; Clean air acts ; Pollution regulations ; Air pollution control ; Exhaust emissions ; Diesel fuels ; Mobile pollutant sources ; Nonroad engines ; Nonroad vehicles
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELCD  EPA 420-R-01-052 NVFEL Library/Ann Arbor, MI 04/18/2011
ESAD  EPA 420-R-01-052 Region 10 Library/Seattle,WA 01/28/2005
NTIS  PB2005-100237 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 38 unnumbered pages : illustrations ; 28 cm
This EPA staff technical paper presents a preliminary staff assessment of the feasibility of upcoming emissions standards for nonroad diesel engines. These standards, referred to as 'Tier 3' for engines above 50 horsepower (hp) and 'Tier 2' for engines below 50 hp, were adopted in a 1998 rulemaking, but do not begin to take effect until the middle of this decade. EPA announced in the 1998 rule that we planned to perform this assessment to determine the need for any adjustments to the program. We are soliciting public comments on this preliminary assessment. After reviewing the comments, EPA plans to issue a final assessment early next year on these issues. This paper also discusses continuing air quality concerns caused by nonroad diesel emissions after implementation of the upcoming Tier 3 program. We intend to follow up with a rulemaking to address these concerns next year. Furthermore, that rulemaking will fulfill Agency commitments, made in the 1998 final rule, to establish test procedures and standards levels for controlling PM emissions beyond the limited control achieved under the Tier 2 standards, and to adopt measures to better ensure emissions control in-use.
"October 30, 2001." "Air and Radiation." Printed copy of PDF document.