When appeal inspection may be refused
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
An application for an appeal inspection may be refused if: (a) The reasons for the appeal inspection are frivolous or not substantial; (b) the quality or condition of the product has undergone a material change since the inspection covering the product on which the appeal inspection is requested; (c) the lot in question is not, or cannot be, made accessible for the inspection; (d) the lot relative to which appeal inspection is requested cannot be identified positively by the inspector as the lot which was previously inspected; or (e) there is noncompliance with the regulations in this part. Such an applicant shall be notified promptly of the reason for refusal.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.