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Metrolink’s New Tier 4, Clean Locomotives In Service Today

Thursday October 12, 2017

First of 40 locomotives expected to reduce emissions by up to 85%, improve reliability for passengers

LOS ANGELES – Some Metrolink riders can say that they rode on the cleanest fuel-powered locomotive in the country as Metrolink’s new Tier 4 locomotive made its debut in passenger service this afternoon.

The first of 40 locomotives rolled into service today at 3:56 p.m. on the San Bernardino Line, Metrolink’s busiest line, which extends from Los Angeles to San Bernardino. These trains will rotate throughout the system to ensure that the entire region benefits from these new clean locomotives.

“These locomotives are a success story of what can happen when transportation agencies, elected officials and members of the community work together,” said Metrolink Board Chairman Andrew F. Kotyuk. “With over 30 letters of support and 11 funding sources, these locomotives are the result of a regional partnership that will benefit all of Southern California.”

These clean locomotives reduce emissions by up to 85% compared to the other locomotives operating throughout the region. They also have up to 64% more horsepower, which will enable Metrolink to transport more people reliably. They are enhanced with the latest Positive Train Control and Crash Energy Management technology. Additionally, the new engines have enhanced on-board engine diagnostics and are expected to reduce delays caused by mechanical issues on trains.

“Metrolink connects Angelenos with communities across Southern California – we’re making that service more sustainable than ever before,” said Los Angeles Mayor Eric Garcetti. “These powerful, fuel-efficient locomotives will make travel across our region better for the environment and easier for riders.” 

The entire fleet of new Tier 4 clean locomotives cost $279 million. Metrolink received funds from federal ($21 million), state ($132 million) and regional ($110 million) and local ($17 million). Air Quality Management District’s Carl Moyer and the State’s Cap and Trade programs were the two largest sources of funds.

“Reducing air pollution in California means aggressively cutting down on emissions in every industry,” said California State Senate President pro Tempore Kevin de León (D-Los Angeles). “Using funds made available by my bill, SB 535, these low-emission locomotives will help keep our environment clean and improve public health.” 

Metrolink’s first Tier 4 locomotives have undergone rigorous testing and certification per Federal Railroad Administration requirements. Metrolink will add locomotives into service over the next months until all 40 are in service by the end of 2018.



Metrolink is Southern California's regional commuter rail service in its 24th year of operation. Metrolink is governed by The Southern California Regional Rail Authority (SCRRA), a joint powers authority made up of an 11-member board representing the transportation commissions of Los Angeles, Orange, and Riverside, San Bernardino and Ventura counties. Metrolink operates seven routes through a six-county, 538 route-mile network. Metrolink’s passengers travel approximately 441 million miles each year, making Metrolink the second busiest public transportation provider in Southern California. Metrolink is the third largest commuter rail agency in the United States based on directional route miles and the eighth largest based on annual ridership.