The Advisory, Conciliation and Arbitration Service (Acas) is a non-departmental public body of the Government of the United Kingdom. Its primary purpose is to improve organizations and working life by promoting and facilitating strong industrial relations practices.
Acas provides employment law and employment relations advice to both employers and employees via its website and helpline. The organization offers various dispute resolution services, including arbitration and mediation. It is most notably recognized for its collective conciliation function, which involves resolving disputes between employers and groups of workers or employees, who are often represented by a trade union.