A collective agreement or collective bargaining agreement (CBA) is an agreement between employers and employees which regulates the terms and conditions of employees in their workplace, their duties and the duties of the employer. It is usually the result of a process of collective bargaining between an employer (or a number of employers) and a trade union representing workers.
In the United Kingdom, collective agreements are conclusively deemed to be not legally binding under the Trade Union and Labour Relations (Consolidation) Act 1992 section 179. This presumption may be rebutted when the agreement is in writing and contains an explicit provision asserting that it should be legally enforceable. This reflects the tradition in British industrial relations policy of legal abstentionism from workplace disputes.