Which legislation requires pneumatic tools to be inspected regularly?

The correct legislation that requires pneumatic tools to be inspected regularly is OSHA regulations. The Occupational Safety and Health Administration (OSHA) establishes and enforces standards to ensure safe and healthy working conditions. One of OSHA's key focuses is to minimize hazards in the workplace, which includes the safe use and maintenance of tools like pneumatic devices.

Regular inspection of pneumatic tools is crucial because they pose various risks, including the potential for air leaks, unexpected tool activation, and pressure-related injuries. OSHA standards necessitate that employers ensure that all tools are in safe working condition and that risks associated with their use are mitigated. This includes routine checks and maintenance protocols to prevent accidents and ensure worker safety.

While the other mentioned entities like the EPA, NIOSH, and ANSI have significant roles in workplace safety and health, their specific regulations do not directly mandate regular inspections of pneumatic tools. The EPA focuses mainly on environmental regulations, NIOSH is concerned with health research and recommendations rather than enforcement, and ANSI provides consensus standards that might guide practices but do not enforce them. Therefore, OSHA is the correct answer when it comes to the requirement for regular inspections of pneumatic tools in the workplace.