Which organization sets the rules for scaffold end extensions?

• A. OSHA
• B. ANSI
• C. NFPA
• D. ASTM

Answer: (A)

The organization responsible for setting rules regarding scaffold end extensions is the Occupational Safety and Health Administration (OSHA). OSHA is a federal agency in the United States that establishes guidelines and regulations to ensure safe working conditions across various industries, including construction. They focus on worker safety and health standards, which encompass specific provisions for scaffolding and related safety requirements.

The regulations established by OSHA cover the design, maintenance, and utilization of scaffolds, aiming to prevent workplace accidents and injuries associated with scaffolding activities. This includes specifications regarding scaffold end extensions, ensuring they are safe for workers and compliant with safety practices.

The other organizations mentioned, such as ANSI (American National Standards Institute), NFPA (National Fire Protection Association), and ASTM (American Society for Testing and Materials), have their own roles and areas of focus. ANSI develops consensus standards, NFPA is focused on fire safety, and ASTM develops technical standards for materials and products, but OSHA specifically governs workplace safety standards directly applicable to scaffolding.