Collective agreements of form, registration and publication must be written; Otherwise, they are annular (Article 4, paragraph 1, Collective Labour Relations Act). They must also be registered and published with the Ministry of Employment and Social Security. Registration is made 15 days after this filing, unless the department has informed the parties of its formal refusal, as is only permitted for the reasons mentioned in the legislation. There is therefore some form of administrative control over certain requirements relating to the creation and content of collective agreements that work by refusing registration. However, since the law does not give administrative authorities discretion over compliance with legal requirements, the system is purely formal. Control of the legality of collective agreements is referred to the courts (Article 43). After registration, the agreements must be published within a fortnight in the Boletim de Trabalho e Emprego (Article 26). This publication is essential at the beginning of its validity. Agreements are usually specific to the field.

They include the conditions of employment of working office workers, for example. B, in the finance, IT services, construction, metallurgical and data communication sectors. Content In principle, collective agreements can deal with all issues within the scope of the collective autonomy of social partners. However, there are a number of exceptions to this principle. On the one hand, the law gives a positive delineation of the content of the agreements. Article 5 of the Collective Relations Act stipulates that they may govern the reciprocal rights and obligations of workers and employers; relations between states that are signatories to an agreement; dispute resolution procedures resulting from individual employment contracts, the introduction of conciliation, conciliation and arbitration mechanisms. This formulation reflects the distinction made by lawyers between the mandatory and prescriptive parts of collective agreements. In addition, the law (mainly in Article 6) contains a negative delineation of the content of the agreements. First, the general limitations arise from the limits of collective autonomy itself: collective agreements must not regulate economic activities with regard to the working time of companies, the tax system and price formation.