On December 21, 2018, the U.S. Department of Agriculture (USDA) Agricultural Marketing Service announced a final rule on the National Bioengineered (BE) Food Disclosure Standard (NBFDS). The rule, which will be effective on February 19, 2019, and implemented on January 1, 2020, established the new mandatory NBFDS addressing genetically modified (GM) labeling. Food manufacturers, importers, and other entities that label foods for retail will be obligated to disclose information about BE food and BE food ingredients. An extended implementation date has been set for small food manufacturers, with a deadline of January 1, 2021. Established under the Agricultural Marketing Act of 1946, NBSDF is intended to provide a uniform national standard in disclosing the status of BE foods to consumers. Voluntary compliance ends on December 31, 2021, with mandatory compliance starting on January 1, 2022.