RULE 85. TERRITORIAL RIGHTS. When established runs are so changed as to cause engineers to run over more than one district or part thereof runs and vacancies thereon shall be filled in such service by engineers of such districts in proportion to the mileage of each district over which the run or runs extend; provided, that in case either district furnished less than 75% or more than 25% of the mileage on the run, the only two engineers are assigned, each district will furnish one; one assigned, the district with the major portion will furnish the engineer.

(a) Engineers found employed on rods acquired or leased and operated by this Company as separate districts shall retain their rights and seniority as heretofore on the road absorbed.

(b) Engineers found employed on roads acquired or leased by this Company and operated as a part of any district shall take seniority rights on the entire district to which added, in accordance with seniority date in service as an engineer on the absorbed road.