Which is a form of documentation required by the SPS regulations?

The correct answer highlights the importance of safety and health in food production and processing, which aligns with the SPS (Sanitary and Phytosanitary) regulations. Certification of a supply of running, potable water is vital because it ensures that the water used in food processing is safe for consumption and does not pose any health risks. Clean and safe water is a critical component in preventing contamination and ensuring product quality, making it an essential documentation requirement under SPS regulations.

In contrast, while the other options may also represent important aspects of food safety and quality management, they do not specifically fit within the core requirements of SPS documentation. For instance, a written pest management program and records of daily SPS checks are critical components of food safety practices, but they serve more to demonstrate compliance on a broader operational scale rather than addressing immediate sanitary concerns mandated by SPS. Laboratory results of microbial sampling are indeed valuable for assessing food safety but are typically used for testing and verification purposes rather than serving as a foundational form of documentation required by SPS regulations.