Which phrase best describes the scope of guidance for pools and recreational waters?

• A. Only covers drinking water standards.
• B. Covers swimming pools, hot tubs, spas, and recreational waters.
• C. Guidance on air quality.
• D. Emergency response to chemical spills.

Answer: (B)

The main idea is that guidance for pools and recreational waters covers the facilities where people swim and bathe, not just drinking-water concerns. It is meant for public aquatic venues and includes swimming pools, hot tubs, spas, and other recreational waters. This scope focuses on keeping these environments safe through water quality, disinfection, testing, and proper operation for bathers. The other options don’t fit because the guidance isn’t limited to drinking-water standards, it doesn’t primarily address air quality, and while safety planning can touch on emergencies, the core scope here is the facilities and activities associated with pools and recreational waters.