Artikel 4

1. Each Member shall establish, maintain, progressively develop and periodically review a national system for occupational safety and health, in consultation with the most representative organizations of employers and workers.
2. The national system for occupational safety and health shall include among others:
a) laws and regulations, collective agreements where appropriate, and any other relevant instruments on occupational safety and health;
b) an authority or body, or authorities or bodies, responsible for occupational safety and health, designated in accordance with national law and practice;
c) mechanisms for ensuring compliance with national laws and regulations, including systems of inspection; and
d) arrangements to promote, at the level of the undertaking, cooperation between management, workers and their representatives as an essential element of workplace-related prevention measures.
3. The national system for occupational safety and health shall include, where appropriate:
a) a national tripartite advisory body, or bodies, addressing occupational safety and health issues;
b) information and advisory services on occupational safety and health;
c) the provision of occupational safety and health training;
d) occupational health services in accordance with national law and practice;
e) research on occupational safety and health;
f) a mechanism for the collection and analysis of data on occupational injuries and diseases, taking into account relevant ILO instruments;
g) provisions for collaboration with relevant insurance or social security schemes covering occupational injuries and diseases; and
h) support mechanisms for a progressive improvement of occupational safety and health conditions in micro-enterprises, in small and medium-sized enterprises and in the informal economy.