40 CFR Part 1054, Appendix I to Part 1054 - Summary of Previous Emission Standards

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View PDF at GPO Pt. 1054, App. I
Appendix I to Part 1054—Summary of Previous Emission Standards
The following standards apply to nonroad spark-ignition engines produced before the model years specified in § 1054.1:
(a) Handheld engines. Phase 1 and Phase 2 standards apply for handheld engines as specified in 40 CFR 90.103 and summarized in the following tables:
Table 1 to Appendix I—Phase 1 Emission Standards for Handheld Engines (g/kW-hr) a
Engine displacement class HC NOX CO
a Phase 1 standards are based on testing with new engines only.
Class III 295 5.36 805
Class IV 241 5.36 805
Class V 161 5.36 603
Table 2 to Appendix I—Phase 2 Emission Standards for Handheld Engines (g/kW-hr) a
Engine displacement class HC NOX CO
a The standards shown are the fully phased-in standards. See 40 CFR 90.103 for standards that applied during the phase-in period.
Class III 50 805
Class IV 50 805
Class V 72 603
(b) Nonhandheld engines. Phase 1 and Phase 2 standards apply for nonhandheld engines as specified in 40 CFR 90.103 and summarized in the following tables:
Table 3 to Appendix I—Phase 1 Emission Standards for Nonhandheld Engines (g/kW-hr) a
Engine displacement class HC NOX CO
a Phase 1 standards are based on testing with new engines only.
Class I 16.1 519
Class II 13.4 519
Table 4 to Appendix I—Phase 2 Emission Standards for Nonhandheld Engines (g/kW-hr)
Engine displacement class HC NOX NMHC NOX CO
a The Class II standards shown are the fully phased-in standards. See 40 CFR 90.103 for standards that applied during the phase-in period.
Class I-A 50 610
Class I-B 40 37 610
Class I 16.1 14.8 610
Class II a 12.1 11.3 610

Title 40 published on 2014-07-01

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