§ 1033.101 Exhaust emission standards.
See appendix A of this part to determine how emission standards apply before 2023.
(a) Emission standards for line-haul locomotives. Exhaust emissions from your new locomotives may not exceed the applicable emission standards in Table 1 to this section during the useful life of the locomotive. (Note: § 1033.901 defines locomotives to be “new” when originally manufactured and when remanufactured.) Measure emissions using the applicable test procedures described in subpart F of this part.
Table 1 to § 1033.101—Line-Haul Locomotive Emission Standards
| Year of original manufacture | Tier of standards | Standards (g/bhp-hr) | |||
|---|---|---|---|---|---|
| NOX | PM | HC | CO | ||
| 1973–1992 a | Tier 0 b | 8.0 | 0.22 | 1.00 | 5.0 |
| 1993 a–2004 | Tier 1 b | 7.4 | 0.22 | 0.55 | 2.2 |
| 2005–2011 | Tier 2 b | 5.5 | e 0.10 | 0.30 | 1.5 |
| 2012–2014 | Tier 3 c | 5.5 | 0.10 | 0.30 | 1.5 |
| 2015 or later | Tier 4 d | 1.3 | 0.03 | 0.14 | 1.5 |
a Locomotive models that were originally manufactured in model years 1993 through 2001, but that were not originally equipped with a separate coolant system for intake air are subject to the Tier 0 rather than the Tier 1 standards.
b Line-haul locomotives subject to the Tier 0 through Tier 2 emission standards must also meet switch standards of the same tier.
c Tier 3 line-haul locomotives must also meet Tier 2 switch standards.
d Manufacturers may elect to meet a combined NOX + HC standard of 1.4 g/bhp-hr instead of the otherwise applicable Tier 4 NOX and HC standards, as described in paragraph (j) of this section.
e The PM standard for newly remanufactured Tier 2 line-haul locomotives is 0.20 g/bhp-hr until January 1, 2013, except as specified in § 1033.150(a).
(b) Emission standards for switch locomotives. Exhaust emissions from your new locomotives may not exceed the applicable emission standards in Table 2 to this section during the useful life of the locomotive. (Note: § 1033.901 defines locomotives to be “new” when originally manufactured and when remanufactured.) Measure emissions using the applicable test procedures described in subpart F of this part.
Table 2 to § 1033.101—Switch Locomotive Emission Standards
| Year of original manufacture | Tier of standards | Standards (g/bhp-hr) | |||
|---|---|---|---|---|---|
| NOX | PM | HC | CO | ||
| 1973–2001 | Tier 0 | 11.8 | 0.26 | 2.10 | 8.0 |
| 2002–2004 | Tier 1 a | 11.0 | 0.26 | 1.20 | 2.5 |
| 2005–2010 | Tier 2 a | 8.1 | b 0.13 | 0.60 | 2.4 |
| 2011–2014 | Tier 3 | 5.0 | 0.10 | 0.60 | 2.4 |
| 2015 or later | Tier 4 | c 1.3 | 0.03 | c 0.14 | 2.4 |
a Switch locomotives subject to the Tier 1 through Tier 2 emission standards must also meet line-haul standards of the same tier.
b The PM standard for new Tier 2 switch locomotives is 0.24 g/bhp-hr until January 1, 2013.
c Manufacturers may elect to meet a combined NOX + HC standard of 1.4 g/bhp-hr instead of the otherwise applicable Tier 4 NOX and HC standards, as described in paragraph (j) of this section.
(c) Smoke standards. The smoke opacity standards specified in Table 3 to this section apply only for locomotives certified to one or more PM standards or FELs greater than 0.05 g/bhp-hr. Smoke emissions, when measured in accordance with the provisions of Subpart F of this part, shall not exceed these standards.