Which agency approves EIA testing laboratories for official results?

• A. USDA-APHIS
• B. FDA
• C. CDC
• D. EPA

Answer: (A)

Appropriate concept: official diagnostic results for animal diseases are only issued by labs approved and overseen by the federal agency responsible for animal health. For EIA testing, that authority rests with USDA APHIS. APHIS Veterinary Services authorizes and accredits laboratories to perform official EIA tests and to report results recognized for regulatory actions. The National Veterinary Services Laboratories (NVSL) under APHIS serves as the national reference lab and ensures proficiency, quality assurance, and method validation across official labs.

The other agencies don’t approve labs for official animal-disease results: FDA handles veterinary biologics and human medical devices, CDC focuses on human health surveillance, and EPA covers environmental issues.