The US Department of Agriculture (USDA), through its Agricultural Marketing Service (AMS) published its final rule (NBFDS Final Rule) on December 21 establishing a nationwide labeling disclosure requirement for foods containing bioengineered (BE) ingredients, defined as foods or substances that contain genetic material that has been modified through in vitro recombinant deoxyribonucleic acid (rDNA) techniques and for which the modification could not otherwise be obtained through conventional breeding or be found in nature. While a more thorough analysis is still being conducted, here we provide a summary of the major topics addressed in the NBFDS Final Rule.