designation for rebuilt Dash 2 series EMDs. One example of an SD40-3 rebuild program is the one conducted by CSX. It started in 2010 with 10 units upgraded and numbered 4000-4009; in 2011, 20 units went through the program and were numbered 4010-4029 and in 2012 another 20 units followed and were numbered 4030-4049. CSXT 4040-4049 are painted in the new CSX "RAILCAR LOGO" paint scheme. CSX plans to rebuild 300 locomotives (CSXT 4000-4399). The plan has been to have the new units serve an additional 30 years and cost far less than brand new locomotives. The new cabs can withstand crashes better, have new heating and air-conditioning systems, a new control stand, including visual displays, a modern WABCO braking controller, and modernized starting systems. The engine retains the original rating, with rated tractive power increased to from the former rating. SD22ECO The SD22ECO is an EMD SD40-2 or similar, repowered with an EMD 8-710-ECO engine. The resulting locomotive is rated at , and meets EPA Tier II emissions regulations. SD30C-ECO The SD30C-ECO is an EMD SD40-2 re-powered with an EMD 12-710 prime mover. The locomotive is rated at and meets EPA Tier 0 emissions regulations. ET23DCM The ET23DCM is an EMD SD40-2 rebuilt by GE Transportation, and repowered with a GEVO-6 prime mover. This locomotive meets the EPA Tier 4 emission standards. CSX has ordered 13 rebuilds. Preservation Union Pacific donated SD40-2 9950 to Western America Railroad Museum in Barstow, California in 2004. 9950 was built in 1980 for the Missouri Pacific as their 3320. In June 2009, Union Pacific had donated 3028 (former Chicago & North Western 6847) to the Illinois Railway Museum in Union, Illinois. The unit still wears its original factory paint from when it was built for the CNW in March, 1974. CNW 6847 was patched by UP in February, 2003, to UP 3028, and retired in December, 2008. The locomotive has since had its UP patches removed, and CNW herald and numbers restored. In 2014, Union Pacific traded SD40-2C 3105 and other equipment to the RailGiants Train Museum at Fairplex in Pomona, California for 4-8-8-4 Union Pacific 4014 "Big Boy", which UP restored to operational status in 2019. Locomotive 3105 was originally built in 1979 as Missouri Pacific 6027, and one of the few that the Missouri Pacific ordered with dynamic braking. This is the only operational locomotive in the museum. In the Fall