Which agency's regulations govern the electrical standards for agricultural buildings?

The National Electrical Code (NEC) is the correct choice governing electrical standards for agricultural buildings. The NEC provides comprehensive guidelines that ensure safety in electrical installations, including those specific to agricultural contexts. It covers aspects such as wiring methods, grounding, and the installation of electrical equipment that are crucial for safe operations in environments unique to agriculture, which can include barns, silos, and other facilities.

OSHA, while it focuses on workplace safety and health regulations, does not specifically govern electrical standards. ANSI is involved in the creation and promotion of standards for various industries, but it does not specifically regulate electrical codes. NIST's role is more aligned with establishing measurement standards and does not pertain specifically to electrical installation codes. Therefore, the NEC is essential for ensuring that electrical systems in agricultural buildings are safe, effective, and compliant with relevant safety standards.