General Electric Transportation expects to deliver Tier-4 compliant locomotives to Norfolk Southern this spring, making it the fifth Class I railroad to receive ET44ACs.
The units are being built in Fort Worth, Texas, and are part of a 47-unit order.
Tier 4 emission standards were issued by the U.S. Environmental Protection Agency and took effect last year.
The first of the locomotives, No. 3600, will be tested by the Southwest Research Institute in San Antonio before being delivered to NS. The units will have roster numbers 3600-3646.
NS also has on order three ES44AC locomotives that meet Tier 3 emission standards, but are permitted under existing regulations by having the builder apply emission credits already banked toward the locomotives.
Those credits were earned by applying energy-saving design technologies to locomotives already built and in operation.
Carrying roster numbers 8166-8168, those units are being built in Erie, Pennsylvania.
Canadian Pacific and Kansas City Southern are the only North American Class I railroads that have yet to buy Tier 4-compliant locomotives.
Tags: EPA Tier 4 emissions standards, GE Transportation, GE Transportation Erie locomotive plant, General Electric, Norfolk Southern, NS locomotive power, NS locomotives, Tier 4 Compliant locomotives
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