Article 1: purpose and scope of agreement. 1.01 The purpose of this agreement is to maintain harmonious and mutually beneficial.Please complete and fax this form to the applicable union to request craft workers that fulfill all hiring requirements for the. City of Los Angeles project. The collective agreement for PSAC members in the PA bargaining unit is now available. The purpose of this agreement is to maintain harmonious and mutually beneficial relationships between the Employer, the Alliance and the employees.