Your Site Representative is a CUPE member who has volunteered to be the contact person – or site rep – for their worksite’s staff. The site rep is there to support you and answer your general questions about our contract, benefits, vacation, or sick time. f you need to speak with the union office, your president or the chief shop steward, a shop steward or an executive member, they can help you with that, too. Keep in mind that site reps are not shop stewards and cannot represent you at any meetings with your administrators or managers.