This final rulemaking amended the regulations governing the WIC food packages to: 1) incorporate recommendations of the National Academies of Science, Engineering, and Medicine 2017 scientific report, Review of WIC Food Packages: Improving Balance and Choice; 2) align with 2020 Dietary Guidelines for Americans; and 3) make other administrative revisions or clarifications to food package requirements. In the development of the proposed rule, FNS solicited feedback from WIC participants, state and tribal partners, and other government agencies. FNS published the proposed rule with a 90-day comment period and considered comments received prior to issuing this final rule.