Collective bargaining is a process of negotiations between employers and the representatives of a unit of employees aimed at reaching agreements that regulate working conditions. Collective agreements usually set out wage scales, working hours, training, health and safety, overtime

Overtime

Overtime is the amount of time someone works beyond normal working hours. Normal hours may be determined in several ways:*by custom ,*by practices of a given trade or profession,*by legislation,...

, grievance

Grievance (labour)

In a trade union, a grievance is a complaint filed by an employee which may be resolved by procedures provided for in a collective agreement or by mechanisms established by an employer...

 mechanisms and rights to participate in workplace or company affairs.

The union

Trade union

A trade union, trades union or labor union is an organization of workers that have banded together to achieve common goals such as better working conditions. The trade union, through its leadership, bargains with the employer on behalf of union members and negotiates labour contracts with...

 may negotiate with a single employer (who is typically representing a company's shareholders) or may negotiate with a group of businesses, depending on the country, to reach an industry wide agreement.