Administration of the Labor Relations Law: M.G.L. c.150A; Administration of M.G.L. c.150E, an Act Providing for Collective Bargaining for Public Employees; Definitions; General Provisions; Conduct of Hearings; Questions of Representation; Prohibited Practices; Various Provisions of the Law; Agency Service Fee; Designation of Commission Agents; Advisory Council on Employment Relations (ACER); Construction of Rules, Amendment and Publication; Rules for Interest Mediation, Fact-Finding & Interest Arbitration in Disputes Involving Public Employees & Employers; Private Sector Interest; Grievance Mediation & Arbitration in the Public & Private Sectors; Conduct of Grievance Arbitration Proceedings.