Protection Systems and Safety Devices in Machinery and Equipment Used in Work Centers

NOM-004-STPS is an Official Mexican Standard that specifically addresses protection systems and safety devices in machinery and equipment used in work centers. Issued by the Secretariat of Labor and Social Welfare (STPS), this standard aims to establish guidelines and requirements to ensure the safety of workers operating machinery and equipment in various work settings.


The standard comprehensively covers protection systems and safety devices for machinery and equipment in work centers across different industries. It outlines specific requirements for the design, installation, and maintenance of safety measures to prevent accidents, injuries, and occupational hazards associated with the operation of machinery.


1. Worker Safety: The primary benefit is the enhanced safety of workers operating machinery and equipment, reducing the risk of accidents, injuries, and occupational hazards.

2. Compliance with Regulations: Implementation ensures compliance with Mexican safety regulations, reducing the likelihood of legal issues and penalties related to workplace safety.

3. Reduced Downtime: Properly implemented protection systems and safety devices contribute to preventing accidents and breakdowns, leading to reduced downtime, and increased operational efficiency.

4. Improved Productivity: Workers can operate machinery with confidence when equipped with effective safety measures, leading to improved productivity and workflow.

5. Enhanced Reputation: Companies that prioritize worker safety and comply with safety standards build a positive reputation, fostering trust among employees, clients, and regulatory bodies.

6. Cost Savings: Preventing accidents through the implementation of safety measures can result in cost savings associated with medical expenses, workers' compensation, and potential legal consequences.

7. Employee Morale: A safer work environment promotes higher morale among employees, contributing to a positive workplace culture.