Nutrition facts label
Additionally, there is a requirement for ingredients to be listed in order from highest to lowest quantity, according to their weight.
The label was mandated for most food products under the provisions of the 1990 Nutrition Labeling and Education Act (NLEA), per the recommendations of the U.S. Food and Drug Administration. It was one of several controversial actions taken during the tenure of FDA Commissioner Dr. David Kessler. The law required food companies to begin using the new food label on packaged foods beginning May 8, 1994. (Meat and poultry products were not covered by NLEA, though the U.S. Department of Agriculture proposed similar regulations for voluntary labeling of raw meat and poultry.) Foods labeled before that day could use the old label. This appeared on all products in 1995. The old label was titled "Nutrition Information Per Serving" or simply, "Nutrition Information".
Raw meat
The first instance of federal regulation of the meat industry occurred in 1890, when European markets began questioning the quality of American beef. The U.S. Department of Agriculture (USDA) was given the power to make sure European standards were met, and in 1891 could inspect slaughtered livestock to be sold in the United States. The momentum for the creation of meat regulation laws in the 20th century was spurred by the publication of "The Jungle", by Upton Sinclair. Published in 1906, this exposé described the horrible and unsanitary conditions of the Chicago slaughterhouses and caused a public outcry for change. The Federal government authorized the Federal Meat Inspection Act (FMIA) in 1906 as a response. It “established sanitary standards for slaughter” and “mandated antemortem inspection of animals…and postmortem inspection of every carcass.” Another stipulation was that government inspectors must be in every meat production facility. This law did not originally cover poultry, just beef and meat from other mammals, because poultry was not being mass-produced in the early 20th century. 
The federal meat inspection programs continued to be revised throughout the 20th century, especially in the 1960s and 1970s, in light of studies that showed more dangers not yet addressed. The current rule used by the FSIS, or Food Safety and Inspection Services, was published in 1996 and known as HACCP. This stands for the Pathogen Reduction/Hazard Analysis and Critical Control Point Systems. It was originally developed by the Pillsbury Company to make sure that food used by the U.S. space program was safe, and later adopted and modified by the Federal government. The HACCP’s goal is to: 
reduce the risk of foodborne illness associated with the consumption of meat and poultry products to the maximum extent possible by ensuring that appropriate and feasible measures are taken at each step in the food-production process where hazards can enter and where procedures and technologies exist or can be developed to prevent the hazard or reduce the likelihood it will occur.
According to an article on the HACCP system published in "Risk Analysis", the seven principles of implementing a HACCP system are:These measures try to ensure that the system is effective, reducing the risk of harmful pathogens sickening the public.