RULE 84. DISPLACED ENGINEERS. When an assigned road engineer is displaced, he may exercise his seniority, or work on the extra board. He may place himself on a permanent vacancy, this with the understanding that he must make application for the vacancy when bulletined. His failure to make application will deprive him from displacing an assigned engineer or from taking another permanent vacancy. If he places himself on an extra board and is later displaced such extra board through no fault of his own, he may displace any junior engineer on a regular assignment.

An engineer having the right to and who does exercise seniority to a position held by a junior engineer shall have the right to be used on that position when it is next scheduled to work, provided seniority is exercised not less than one hour in advance of the starting time of the position and provided further that at the time seniority is exercised another engineer has not already been called for the position.

NOTE: Under this rule an engineer must exercise his seniority within five (5) days after being displaced.