Also, small railroads are exempt from the Tier 0 remanufacturing requirements for their existing fleets and the railroad inuse test program included in the rule only applies to Class I freight railroads, thus exempting all small railroads from the requirement.
Class II freight railroads are also exempt from remamifacturing requirements but, for different reasons.
mnli hypothesis: Class II freight railroads are also exempt from remamifacturing requirements but, for different reasons. premise: Also, small railroads are exempt from the Tier 0 remanufacturing requirements for their existing fleets and the railroad inuse test program included in the rule only applies to Class I freight railroads, thus exempting all small railroads from the requirement.