RULE 70-
INCREASING FORCES
When forces are increased trainmen or yardmen who have been furloughed in force reduction shall be recalled to service in seniority order and they shall resume the same seniority they had at the time they were furloughed provided:
First ‑‑ They must, by registered letter, keep the Superintendent informed of their whereabouts and change of address.
Second ‑‑ If absent six months or more, employee must pass the usual rules and physical examinations, if required.
Third ‑‑ When notified by the Superintendent by wire or registered letter to report for duty, the employee will reply promptly as to whether or not he will report and failure to report within fifteen days after Superintendent's notice will be considered as evidence that he does not desire to return, except in case of sickness or other causes over which he has no control, and which prevent him from reporting for duty, in which event he will within the period named ‑‑ fifteen days ‑secure an extension of time through his Superintendent.
Fourth ‑‑ The foregoing time limit and exception will not be considered as relieving the employee from reporting for duty at the earliest date possible after notice to report has been received.