Which methods verify supplier safety compliance?

• A. Supplier audits, Certificates of Analysis, supplier questionnaires, traceability records, on-site visits, and approved supplier programs.
• B. Public marketing materials, social media presence, and email newsletters.
• C. Employee timesheets, vacation requests, and payroll.
• D. Customer reviews, testimonials, and awards.

Answer: (C)

Verifying supplier safety compliance relies on evidence-based checks that assess a supplier’s food safety practices and the safety of the products they provide. The strongest methods include audits and on-site visits, which let you evaluate actual practices at the supplier’s facility—GMPs, HACCP plans, sanitation, allergen controls, and overall hygiene. Certificates of Analysis provide documented proof that the product meets safety and specification requirements, offering concrete data you can trust. Supplier questionnaires gather important information about safety programs, controls, and capabilities, helping you compare potential suppliers consistently. Traceability records show you can track ingredients from source to finished product, which is essential for recalls and safety accountability. Approved supplier programs require suppliers to meet defined safety criteria and maintain oversight, ensuring ongoing compliance rather than one-off checks.

Internal HR documents like timesheets or payroll, and external marketing or customer feedback, don’t provide evidence about a supplier’s food safety performance, so they aren’t useful for verifying supplier safety compliance.