Seniority 10.1 Seniority shall be defined as an employee's uninterrupted length of continuous service as a bargaining unit member. Each employee’s seniority date shall be computed from his/her first workday on the job as a bargaining unit member. Substitute employees shall not accumulate seniority and are not subject to any of the terms of this Agreement.
Weights light, moderate and heavy, have their normal everyday meanings, and are to be applied consistently, regardless of the physical characteristics of the jobholder and whether the duties are normally carried out by women or by men; or by small people or large people; or by fit or unfit people. So, a sack of cement or a sack of potatoes is a heavy weight, even if it is lifted and carried without obvious exertion by a tall, fit, young person.