Which of these groups of compounds fall within the scope of the Good Laboratory Practices regulations?

• A. Veterinary drugs
• B. Food and color additives
• C. Biological products
• D. All of the above

Answer: (D)

Good Laboratory Practices govern the conduct of nonclinical studies that are intended to support regulatory submissions to FDA. Any study used to demonstrate safety or efficacy for products regulated by FDA falls under GLP, ensuring data quality, reliability, and traceability. This includes veterinary drugs (regulated by the Center for Veterinary Medicine), food additives and color additives (regulated by FDA), and biological products (such as vaccines and other biologics regulated by the Center for Biologics Evaluation and Research). Because GLP applies broadly to these regulated product areas, all of the above fall within its scope. In short, GLP covers a wide range of regulated substances to protect data integrity across different product categories, so the correct choice is all of the above.