CAPE tentative agreement. The purpose of this agreement is to maintain harmonious and mutually beneficial relationships between the Employer, the employees and the Association.The EC Collective Agreement was signed March 11, 2009. Conversion to EC will be effective June 22, 2009. Collective-bargaining contracts in the building and construction industry can include, as stated in Section 8(f), the following additional provisions: 1. Collective bargaining is a system of negotiation around terms of employment. Most often, these negotiations occur between companies and labor unions. CN's objective is one collective agreement for Conductors and Locomotive Engineers, with a consolidation of collective agreement clauses. The most recent EC collective agreement includes updated provisions on: Pay; Leave; Working conditions. Collective agreement applying to employees in the Electronics Group.