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  3. /NOM-004-STPS-1999
STPS (Labor)SafetyActive

NOM-004-STPS-1999

Protection systems and safety devices in machinery and equipment used in workplaces

Establishes protection and safety device requirements for industrial machinery and equipment. Defines guards, emergency stop devices and energy lockout.

Last updated: 2023

Affected products

Industrial machinerySafety guardsEmergency stop devicesLockout/tagout systemsMachine protection equipment

Compliance requirements

  • Install protective guards at operation points
  • Accessible emergency stop devices
  • Energy lockout program (LOTO)
  • Operator training
  • Documented preventive maintenance
  • Hazard signage

Related tariff codes

These tariff codes may be subject to this NOM. Check the specific code to confirm.

8466.93.018536.50.018301.40.01

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