RULE 47. CONVERSION.  (a) Except as provided in Section (b), engineers in through freight service, doing local work, viz., loading and/or unloading a total of 2500 pounds or more of merchandise, loading and/or unloading five (5) or more cars of livestock, picking up and/or setting out at three (3) or more stations, (exclusive of cases on a straightaway trip where the entire train is set out or picked up on or from a single track) or where general switching (cars to be picked up and/or set out are in seven (7) or more places) is necessary at any station in order to get pick ups or set outs, the placing to spot of car or cars that were not a part of the train of the handling engineer nor incidental to the repotting of cars in making pick up or set outs, from his train, or where required to load stock or switch out cars to be picked Up by another train, will be paid local rates for the trip.  

(b) not carried forward