ANSI Z41-1991 refers to a safety regulation regarding appropriate footwear for certain professions. The U.S. Occupational Safety and Health Administration (OSHA) enforces the standard through its regulatory power.
American National Standards Institute
"ANSI" refers to the American National Standards Institute. ANSI's membership includes government agencies, companies, organizations and academics with an interest in workplace safety. As the official U.S. representative to the International Standards Organization (ISO), ANSI develops safety standards for domestic businesses. Like ISO, many standards developed by ANSI are voluntary, though OSHA may adopt the standards.
OSHA requires that some employees wear shoes or boots that at least meet the ANSI Z41-1991 (American National Standard for Personal Protection-Protective Footwear) standard. This rule applies if employees do work that presents a risk of injury to the feet. That includes the danger of slipping, falling, rolling or dropping objects on the foot, corrosive and poisonous materials or electricity. OSHA lists footwear regulations under Occupational Health and Safety Standard 1910.136.
ANZI Z41-1991 Footwear
OSHA recognizes that different types of footwear protect in different ways. All ANSI footwear includes a protective toe, but OSHA recommends checking with the retailer or manufacturer to ensure that it will protect against the risks of the job. Some retailers advertise their footwear's level of compliance with the ANSI standard.