RULE 77. SENIORITY--EXERCISING.  When an assigned yard engineer is displaced or his position discontinued, he may exercise his seniority or work on the extra board, or he may place-himself on a permanent vacancy, this with the understanding that he must make application for the job when bulletined. His failure to make application will deprive him from displacing an assigned man or taking another permanent vacancy. If he places himself on extra board and is later displaced or cut off such extra board through no fault of his own, he may displace a junior engineer on a regular assignment if there are any on the seniority district. A yard engineer may make application for and be placed on any extra board on the seniority district before junior men are added to said board.  

NOTE: For application at Salt Lake City, see Agreement EO-2708, effective April 1, 1974, reproduced in Appendix 26.