Which organizations provide mandatory or consensus guidance on hazardous drug handling?

• A. USP <800>, NIOSH, OSHA
• B. OSHA, ASHP
• C. USP <800> alone
• D. USP <800>, NIOSH, OSHA, and ASHP

Answer: (D)

The main idea is identifying sources that provide either enforceable standards or widely accepted guidelines for handling hazardous drugs. USP <800> establishes a formal standard that facilities adopting USP guidelines must follow to protect workers, so it represents mandatory guidance. OSHA supplies enforceable workplace safety regulations that cover exposure controls, PPE, engineering controls, and other protections for staff who handle hazardous drugs. NIOSH offers evidence-based, consensus guidance and recommendations on safe handling practices, often used to shape policies and procedures. ASHP provides widely used, expert-backed practice guidelines and recommendations specifically for pharmacy practice and hazardous drug handling.

Because the question asks for organizations that provide either mandatory or consensus guidance, all four sources together give the most complete picture: USP <800> for the mandatory standard, OSHA for enforceable safety requirements, NIOSH for consensus guidance, and ASHP for practical, professional guidelines. The other options miss at least one of these essential sources, making them less comprehensive.