FSANZ is the bi-national government agency responsible for developing and administering the Australia New Zealand Food Standards Code, which lists requirements for foods such as additives, food safety, labeling and GM foods.
The ISO develops and publishes international standards.
This link will take you to a list of national standards organisations from around the world.
This resource is from the American National Standards Institute (ANSI). It is a collection of web resources and links to other organizations and information sources with missions and activities of interest to the standardization and conformity assessment community.