The U.S. Food and Drug Administration (FDA) today announced new proposed rules that would tighten restrictions on food transportation.

The regulation would put new rules into place about sanitary practices for the food transportation sectors. The proposal includes criteria for food refrigeration, food protection during transportation, and cleaning procedures to follow between loads.

Shippers, carriers, and receivers that transport food to be sold in the U.S. would be subject to the new rules. Smaller shipping businesses with less than $500,000 in revenue each year would be exempted from the rules, as would shippers using U.S. roads to ship food not meant for U.S. consumption. The rules also do not apply to fully-packaged foods or live animals.

“This proposed rule will help reduce the likelihood of conditions during transportation that can lead to human or animal illness or injury,” said Michael Taylor, deputy commissioner for foods and veterinary medicine at the FDA. “We are now one step closer to fully implementing the comprehensive regulatory framework for prevention that will strengthen the FDA’s inspection and compliance tools, modernize oversight of the nation’s food safety system, and prevent foodborne illnesses before they happen.”

The new rule is part of the Sanitary Food Transportation Act that was passed in 2005. It is also what the FDA is calling the “final major rule” of the agency’s Food Safety Modernization Act. Other provisions of the modernization act include pet food regulations and new rules on imported food safety.