What Is the ANSI Standard for Machine Guarding Requirements?

The primary ANSI standard for machine guarding is ANSI B11.19, titled "Performance Requirements for Risk Reduction Measures: Safeguarding and Complementary Equipment." This standard provides detailed guidelines for the design, installation, and application of machine guarding systems, including physical barriers, interlocks, light curtains, and other protective devices. It works in conjunction with other B11 series standards (like ANSI B11.0 for general safety and risk assessment) to ensure machines are designed and used safely.

While OSHA sets the legal requirements (29 CFR 1910 Subpart O), ANSI standards represent industry best practices and are often referenced by OSHA for compliance. Using ANSI B11.19 helps employers and machine builders create systems that reduce risk and meet modern safety expectations.