The ISO 22000 family of International Standards addresses food safety management.

The consequences of unsafe food can be serious and ISO’s food safety management standards help organizations identify and control food safety hazards. As many of today's food products repeatedly cross national boundaries, International Standards are needed to ensure the safety of the global food supply chain.

The ISO 22000 family contains a number of standards each focusing on different aspects of food safety management.

ISO 22000:2005 contains the overall guidelines for food safety management.
ISO 22004:2014 provides generic advice on the application of ISO 22000
ISO 22005:2007 focuses on traceability in the feed and food chain
ISO/TS 22002-1:2009 contains specific prerequisites for food manufacturing
ISO/TS 22002-2:2013 contains specific prerequisites for catering
ISO/TS 22002-3:2011 contains specific prerequisites for farming
ISO/TS 22002-4:2013 contains specific prerequisites for food packaging manufacturing
ISO/TS 22003:2013 provides guidelines for audit and certification bodies

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http://www.iso.org/iso/home/standards/management-standards/iso22000.htm