The following is a list of diesel-electric locomotives that meet or exceed EPA Tier 2 locomotive emissions regulations, sorted by builder. This is a non-exhaustive list of locomotives in North America. Furthermore, green/clean energy is an always developing sector and that more locomotives may be added to the list, while some will no longer meet current standards.

Altoona Works Model designation Wheel arrangement Build year Total produced Power output # of engines Engine type ImageBP4 B-B 2009 1 0 1080 12-volt rechargeable batteriesGP33ECOB-B2015–present19 1EMD 12N-710G3B-T3 ECO

Brandt Road-Rail Brandt Road-Rail is a company that mainly produces road–rail vehicles, especially railcar movers and maintenance of way equipment.

In addition, in 2006, it also built a single prototype genset locomotive.

Model designation Wheel arrangement Build year Total produced Power output # of engines Engine type ImagePrototype B-B 2006 1 (prototype) 3 John Deere 6135H (I6) See here

Brookville Equipment Model designation Wheel arrangement Build year Total produced Power output # of engines Engine type Image BL12CG B-B 2015–present 2 2 CumminsBL14CG B-B 2008–present 2 2 Cummins QSK-19 (I6)BL20CG B-B 2007–present 1 3 Cummins QSK-19 (I6) BL20G B-B 2008–present 1 MTU-Detroit Diesel 12V4000 (V12) BL20GH B-B 2008–present 12 1 (plus HEP engine) MTU-Detroit Diesel 12V4000 (V12)andCaterpillar C15 (I6) (HEP) BL36PH B-B 2012 12 1 (plus HEP engine) MTU 20V4000 (V20)

Electro-Motive Diesel Model designation Wheel arrangement Build year Total produced Power output # of engines Engine type ImageF125 B-B 2015–2021 40 1 Caterpillar C175-20 (V20) GP15D B-B 2000 10 1 Caterpillar 3512 (V12)(EMD 12-170B15-T2) GP20D B-B 2000 40 1 Caterpillar 3516 (V16)(EMD 16-170B20-T2) GP22ECO B-B 2009 1 EMD 8–710G3A–T2 SD22ECO C-C 2009 1 EMD 8–710G3A–T2 SD32ECO C-C 2009 1 EMD 12–710G3B–T2 SD70ACe C-C 2004–2014 1,034 1 EMD 16-710G3C-T2 (V16) SD70M-2 C-C 2005–2010 331 1 EMD 16-710G3C-T2 (V16) SD70ACe-T4 C-C 2015–present 1 EMD 12-1010J3 (V12)

GE Transportation Model designation Wheel arrangement Build year Total produced Power output # of engines Engine type ImageES40DC C-C 2004–2007 1 GE GEVO-12 (V12) ES44AC C-C 2003–2014 1 GE GEVO-12 (V12) ES44C4 A1A-A1A 2009–2014 1 GE GEVO-12 (V12)ES44DC C-C 2004–2010 1 GE GEVO-12 (V12) ET44ACC-C2015–present1GE GEVO-12 (V12)ET44C4A1A-A1A2015–present1GE GEVO-12 (V12)

Integral dx

Integral dx, Inc. is a company in Montevideo, Minnesota that builds a variety of industrial equipment, including spray pavers, concrete mixers, and railroad vehicles. Since 2023, it has been manufacturing Tier 4-compliant switchers for the US Armed Forces. These switchers are usually powered with Caterpillar engines, though Cummins-equipped variants are also offered.

Model designation Wheel arrangement Build year Total produced Power output # of engines Engine type Image SWM9B-B 2024-present Several for the US Navy Caterpillar C9.3B 2 SWR10 Offered Caterpillar C13B 2 SWF10 SWR16 Offered Caterpillar C18 2 SWF16 SWR18 2025-present At least one for the US Air Force Caterpillar C27 2 SWF18 Offered SWR21 Offered Caterpillar C27 2 SWF21

Motive Power and Equipment Solutions

Motive Power and Equipment Solutions was a locomotive manufacturer and rebuilder active in Greenville, South Carolina from 1999 until 2022. This company is not to be confused with MotivePower.

Model designation Wheel arrangement Build year Total produced Power output # of engines Engine type ImageMP-900 B-B 1999–2022 2 Cummins QSX15 (I6) Tier 2 See here B-B 2009–2022 2 Cummins QSX15 (I6) Tier 3 B-B 2012–2022 2 Cummins QSX15 (I6) Tier 4MP-1200 B-B 2012–2022 2 Cummins QSX15 (I6) Tier 4MP-1500 B-B 2007–2022 2 Cummins QSX19 (I6) Tier 3MP-1500 "Greenville" B-B 2014–2022 2 Cummins QSK19 (I6) Tier 3 with CNG/Diesel Dual Fuel MP550-B1 B-B 2013 At least 1 1 Cummins QSX15 Tier 3MP2000NG B-B 2018-2020 2 (for D&SNG) ?See here

MotivePower Model designation Wheel arrangement Build year Total produced Power output # of engines Engine type ImageMP8AC-3 B-B 2012–2013 28 1 (plus HEP engine) Cummins QSK-23 (I6) MP14B B-B 2008–present 7 2 Cummins QSK-19C (I6)MP21B B-B 2008–present 1 3 Cummins QSK-19C (I6)MP20B B-B 2008–present 21 1 MTU-Detroit Diesel 12v4000 (V12)MP20C C-C 2007–present 14 1 MTU-Detroit Diesel 12v4000 (V12)MP36PH-3C B-B 2003–present 113 1 (plus HEP engine) GE (EMD) 16-645F3B (V16) MP36PH-3S B-B 2003–present 27 1 GE (EMD) 16-645F3B (V16) MP40PH-3C B-B 2008–present 70 1 (plus HEP engine) EMD 16-710G3B-T2 (V16) MP32PH-Q B-B 2014–present 10 1 (plus HEP engine) GE (EMD) 16-645F3B (V16) HSP46 B-B 2013–present 40 1 GE GEVO-12 (V12)

National Railway Equipment Model designation Wheel arrangement Build year Total produced Power output # of engines Engine type Image1GS7B B-B 2008–present 9 1 Cummins QSK19C (I6) 2GS12B B-B 2014–present 4 2 Cummins QSX15 (I6) Tier 42GS14B B-B 2005–present 18 2 Cummins QSK19C (I6)3GS21B B-B 2006–present 171 3 Cummins QSK19C (I6) 3GS21C C-C 2008–present 3 3 Cummins QSK19C (I6)2GS36C-DE C-C 2011–present 1 2 Cummins QSK50L (V16)

Progress Rail Model designation Wheel arrangement Build year Total produced Power output # of engines Engine type ImagePR15B B-B 2008–present 2 Caterpillar C18 (I6)PR22B B-B 2008–present 3 Caterpillar C18 (I6)PR30C C-C 2009–present 1 Caterpillar 3516 (V16)PR43C C-C 2009–2011 12 2 Caterpillar C175 (V16)andCaterpillar C18 (I6)

Railpower Technologies Model designation Wheel arrangement Build year Total produced Power output # of engines Engine type Image GGS2000D "Emerald" B-B 2001 1 (prototype) 1 130 Hp Caterpillar GG20B "Green Goat" B-B 2004–present 55 1 300 Hp Caterpillar GG10B "Green Goat" B-B 2005–present 6 1 300 Hp Caterpillar GK10B "Green Kid" B-B 2005–present 4 1 300 Hp Caterpillar RP20BH (Hybrid) B-B 2006–present 1 (prototype) 2 Deutz RP20BD (Genset) B-B 2008–present 116 3 Deutz RP14BD B-B 2008–present 8 2 Deutz RP20CD C-C 2007–present 6 3 Deutz RP27CD C-C 2009–present 0 4 Deutz

Siemens Mobility

Model designation Wheel arrangement Build year Total produced Power output # of engines Engine type ImageSiemens Charger B-B 2016–present 392 , , 1 Cummins QSK95

Vehicle Projects In 2009, a company called Vehicle Projects, in cooperation with BNSF Railway, rebuilt one Railpower GG20B locomotive into a prototype hydrogen-powered locomotive, called an HH20B.

Model designation Wheel arrangement Build year Total produced Power output # of engines Engine type ImageHH20B B-B 2009 1 0 Hydrogen fuel cell

References