Compliance with the Posted Workers Act is supervised by the occupational safety and health authorities. Compliance with the provisions of the Equality Act is supervised by the Ombudsman for Equality and the National Discrimination and Equality Tribunal.

The occupational safety and health authorities advise employers and employees in questions related to legislation on employment relationships and to generally applicable collective agreements.

The OSH Division of the Regional State Administrative Agency for Southwestern Finland serves as the Finnish liaison office required under the directive 96/71/EC on the posting of workers, e-mail: postedworkersfin(at)

Information on the social security of posted workers is provided by the Ministry of Social Affairs and Health. The Finnish Centre for Pensions issues A1/E101-certificates for posted workers and makes the decisions regarding applicable social security legislation. Information about the taxation of posted workers is provided by the Finnish Tax Administration.