RULE 51. DOUBLE CREW SNOW SERVICE. (a) In snow service where two(2) engineers are used alternately working and deadheading in continuous operation, the engineer working shall be paid under Rules 24 and 25 for each working period at the work train rate. The engineer deadheading shall not be paid overtime but shall be paid miles or time, whichever is the greater, at the rate of $.5492 for eight (8) hours or one hundred (100) miles with a minimum of one hundred (100) miles.

(b) Section (a) shall also apply when two (2) engineers are used alternately to operate the rotary snow plow, except that for the working period engineers operating the rotary snow plow shall be paid at the basic daily rate of $.5567.

(c) Where two (2) engineers are used with the locomotive handling the rotary snow plow, two (2) engineers shall be used with the rotary snow plow.

(d) Under this rule, where two (2) engineers are used for continuous operations, engineers will, as near as practicable, work twelve (12) hour periods alternately.

(e) Should the continuous operations contemplated by this rule be interrupted for any reason, engineers may be tied up at any time as provided in Rule 48, except that a period of release less than eight (8) hours shall not be considered as a tie-up under this rule.