ULEL - What does ULEL stand for? The Free Dictionary
References in periodicals archive
Receives EPA Certificate of Conformity on Three GenSet (2100 hp) N-ViroMotive ULEL Locomotives (sted National Railway Equipment Co.
Advantages of the N-ViroMotive ULEL locomotives include:
are a direct result of Union Pacific's efforts to encourage development of ever-cleaner technology by its locomotive suppliers.