Ministerial Resolution No. 733-2024-MINSA introduces significant changes in occupational health and safety in Peru. This regulation updates the exposure limits for chemical agents, aiming to align with international standards. The main objective of this resolution is to improve working conditions and protect workers' health. By establishing new regulations, it seeks to address the risks associated with potentially hazardous substances in the workplace.
Ministerial Resolution No. 733 is part of a historical framework of advancements in occupational health management in Peru. This context has been shaped by the necessity to adapt to an increasingly demanding work environment that recognizes the risks posed by chemical agents.
Since the promulgation of Supreme Decree 015-2005-SA, regulations related to exposure to chemical agents in the workplace have remained unchanged. While relevant at the time, this regulatory framework has not kept pace with scientific advances or the growing concern for workers' health.
The urgency to update the regulations has increased due to mounting evidence of the harmful effects of prolonged exposure to various chemical substances. The rising number of occupational diseases has prompted authorities and unions to review and modernize existing regulations. The current context demands a more rigorous approach to occupational protection.
The resolution aims to accomplish several key objectives:
The regulatory update introduces key changes in occupational health and safety legislation. One of the most significant changes is the revision of exposure limits for chemical agents. Values have been established for substances like benzene and formaldehyde, known for their harmful effects. These limits have been adjusted to offer greater protection to workers, aligning with international guidelines.
The regulation also expands the list of regulated chemical agents, incorporating substances that pose significant health risks. Among these are hexavalent and trivalent chromium, known for causing severe health conditions. This inclusion underscores the government's commitment to safeguarding occupational health.
The resolution provides a more detailed description of the adverse effects that chemical agents can have on the body. It addresses aspects such as liver, lung, and reproductive damage, as well as potential teratogenic effects, providing a better understanding of the associated risks for workers and employers.
The regulatory update benefits not only workers but also has economic and social repercussions. Some key benefits include:
Effective implementation of the regulation requires an educational approach. Continuous training for workers and employees is essential to ensure compliance with the new regulations. This includes:



