40 CFR Appendix I
Original Standards for Tier 0, Tier 1 and Tier 2 Locomotives
June 9, 2020
(a) The following emission standards applied for new locomotives not yet subject to this part 1033:
Open Table
| Type of standard | Year of original manufacture |
Tier | Standards (g/bhp-hr) |
||
|---|---|---|---|---|---|
| NOX | PM-primary | PM-alternate1 | |||
| Line-haul | 1973-1992 | Tier 0 | 9.5 | 0.60 | 0.30 |
| 1993-2004 | Tier 1 | 7.4 | 0.45 | 0.22 | |
| 2005-2011 | Tier 2 | 5.5 | 0.20 | 0.10 | |
| Switch | 1973-1992 | Tier 0 | 14.0 | 0.72 | 0.36 |
| 1993-2004 | Tier 1 | 11.0 | 0.54 | 0.27 | |
| 2005-2011 | Tier 2 | 8.1 | 0.24 | 0.12 | |
1Locomotives certified to the alternate PM standards are also subject to alternate CO standards of 10.0 for the line-haul cycle and 12.0 for the switch cycle.
(b) The original Tier 0, Tier 1, and Tier 2 standards for HC and CO emissions and smoke are the same standards identified in §1033.101.
[81 FR 74011, Oct. 25, 2016]
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