part_subject: "CURRENT GOOD MANUFACTURING PRACTICE IN MANUFACTURING, PACKAGING, LABELING, OR HOLDING OPERATIONS FOR DIETARY SUPPLEMENTS"
subpart_code: "F"
subpart_subject: "Production and Process Control System: Requirements for Quality Control"
section_number: "111.135"
section_subject: "What quality control operations are required for product complaints?"
cfr_reference: "21 CFR 111.135"
title_name: "Title 21"
title_subject: "Food and Drugs"
parts_covered: "Parts 100 to 169"
revised_date: "Revised as of April 1, 2019"
publication_date: "As of April 1, 2019"
contains_description: "Containing a codification of documents of general applicability and future effect"
publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"
---
Quality control operations for product complaints must include reviewing and approving decisions about whether to investigate a product complaint and reviewing and approving the findings and followup action of any investigation performed.