The role of the agreement is to establish clear rules and procedures governing both work place practices and the relationship between the parties. A cover page: the cover usually states the name of the union, the employer, and the start and end dates of the collective agreement. Articles: collective agreements are divided into a number of articles, each covering a certain workplace issue. Generally, each article is numbered and has a heading (example: article 5 of the medicine hat police agreement concerns contracting out, article 11 covers promotion, and article 12 focuses on layoff and recall) Clauses: within an article, there might be a number of sub-areas called clauses. (example: in article 26 leave of absence of the medicine hat police. Agreement, clause 26. 1 states who can approve leave, clause 26. 2 describes how to apply for a leave, and clause 26. 8 contains issues related to maternity, parental, and adoptive leave).