This Final Regulatory Impact Analysis (Final RIA) contains the supporting information and analysis for the Phase 2 Final Rulemaking for handheld engines and for Class I-A and I-B nonhandheld engines. The information was gathered from number of sources including the Regulatory Negotiation (Reg/Neg) process between 1993 and 1996, industry meetings between 1993 and 2000, EPA contracts, comments to the January 1998 Notice of Proposed Rulemaking (NPRM) and the July 1999 Supplemental Notice of Proposed Rulemaking (SNPRM), and discussions with manufacturers and inventors. The Reg/Neg task groups provided information on test procedure, technologies, compliance programs, and costs. Industry provided data on the in-use deterioration characteristics of Phase 1 engines from their own test programs and on costs of technologies to the consumer. EPA contracts provided information on available technologies, costs of technology changes, and regulatory impacts for small entities. Comments to the January 1998 NPRM provided information on a number of issues including the timeframe for certain technologies, costs of technologies, costs of testing, the need for additional nonhandheld classes, etc. Discussions with manufacturers and inventors since the publication of the January 1998 NPRM and comments on the July 1999 SNPRM provided EPA with the latest information on emission reduction technologies and costs. All of this information is utilized in the chapters of this Final RIA as described.

Title from title screen (viewed on Apr. 22, 2014). "March 2000." Includes bibliographical references. "EPA-420/R-00-004."