PARTICIPANTS IN THE CONSULTATION PROCESS. When the Railway meets with the union, the total number of official union and Railway representatives will not exceed six, three each from the Union and the Railway. Other advisors, observers, visitors may attend the consultation meetings but only with the concurrence of both the union and the Railway; these persons will not be entitled to actively participate in the proceedings except with the agreement of both the union and the Railway. Official union representatives who are active employees of the Railway will be protected against any loss of regular pay by virtue of their attendance at consultation meetings; they will also be reimbursed for reasonable, documented expenses incurred as a result of their attendance. These payments will not be made to advisors, observers or visitors.