OAR Policy and Guidance Metarecord

Document Title/Subject: Tier 1 to Tier 2 Transition for Nonroad CI Engines Related Documents:	Signed by: Gregory A. Green Signature Date: December 11, 2000 Contact: Gregory Orehowsky	Filename(s): http://www.epa.gov/ttn/oarpg/t2/memoranda/ccd-00-21.pdf URL(s):
Regulatory Authority: Title 2	Division/Director: Certification and Compliance Division (OTAQ) /	Submitted By: orehowsky.gregory	OGC Contact: Paul Cort OGC Phone#: 202-564-5573	Internet Contact: otaqpublicweb@epa.gov
Document Type: Policy & Guidance Memos,	EPA Document Number: CCD-00-21 Federal Register:	Supersedes:
Subject Category: AIR COMPLIANCE AND ENFORCEMENT ENVIRONMENTAL PROTECTION AGENCY GOVERNMENT	Keywords: Compliance assistance Diesels and locomotives Emissions Engines Pollutants Nonroad Compression Ignition CI Tier I Tier 2 Engine Manufacturers Association EMA Engine Family Tier 1 Tier 2	Terms: Air pollutants Automobiles and other vehicles Clean Air Act CAA Permits Regulations Standards
Abstract: The letter is a response to questions raised by the Engine Manufacturers Association (EMA). The letter provides guidance on grouping engines with different emissions standards into engine families.