1905 First patents for the use ofionizingradiationtargetingpestsinfoods
1920s Irradiation used by Frenchscientiststopreservefoods
1921 U. S. patent to use x-ray irradiationtokill Trichinellaspiralis inmeat
1940 Testing to use irradiation of common foods by the U.S. Department of Army
1958 Amendment of the Food, Drug, and Cosmetic Act, defining source of irradiation for use inprocessingfoods
1963 Irradiation approvedforusetocontrolinsectsinwheat
1964 Irradiation approved for usetoextendshelflifeofwhite potatoes
1966 U .S. Department of Army and U.S. Department of Agriculture petition FDA to approve irradiationofham
1970s Irradiation adopted by NASAtosterilizefoodforthespaceprogram
1980 U.S. Department of Army transfers food irradiation program to the U.S. Department of
1983 Irradiation approved for use in spicesanddryvegetablestokillinsectsandbacteria
1985 Low-dose irradiation approved to control Trichinella in pork
1986 Irradiation approved for use in fruits and vegetables to control insects and promote product maturation
1990, 1992 Irradiation approved for used in poultry to control Salmonella and other bacteria by FDA
and USDA, respectively 1997 Irradiation approved for use in beef and other read meat
2000 Irradiation permitted for use in refrigerated and frozen uncooked meat and meat by products and in fresh shell eggs to control Salmonella errorism threats. The postal service handlesmorethan100billionpiecesoffirst-class mail every year, and the average mail carrier handles 2300 letters every day.
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