US FDA Inspection Guides
Low Acid Canned Food Manufacturers Part 1 - Adminstrative Procedures/Scheduled Processes
https://www.fda.gov/ICECI/Inspections/InspectionGuides/ucm074992.htm
Low Acid Canned Food Manufacturers Part 2 - Processes/Procedures
https://www.fda.gov/ICECI/Inspections/InspectionGuides/ucm074995.htm
Low Acid Canned Food Manufacturers Part 3 - Container/Closures (11/98)
https://www.fda.gov/ICECI/Inspections/InspectionGuides/ucm074999.htm