Microbiological Methods & Bacteriological Analytical Manual (BAM)

The FDA sets scientific standards for testing foods for various contaminants. Laboratories and food companies worldwide use these standards to make sure that food products are safe to eat and drink.

FDA Bacteriological Analytical Manual Online (BAM)

FDA's Bacteriological Analytical Manual (the BAM) is the agency's preferred laboratory procedures for the detection in food and cosmetic products of pathogens (bacterial, viral, parasitic, plus yeast and mold) and of microbial toxins. The complete BAM is now available online and will be updated as needed.

Additional FDA Microbiological Methods

Environmental Testing Methods

Related Microbiological Methods Information

  • American Public Health Association (APHA):  APHA disclaimer icon

  • American Type Culture Collection: ATCC disclaimer icon

  • International Organization for Standardization (ISO): Listeria monocytogenes enumeration - ISO 11290-2:1998(E) disclaimer icon: "Microbiology of food and animal feeding stuffs - Horizontal method for the detection and enumeration of Listeria monocytogenes - Part 2: Enumeration method." (1998; available for purchase from ISO)


Page Last Updated: 10/10/2018
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