Health Secretary Robert F. Kennedy Jr. raised questions about CDC vaccine recommendation categories in a Federal Register request for information, targeting how the U.S. government classifies routine versus shared clinical decision-making immunizations. The RFI is intended to support President Trump’s executive order to break up MMR into three separate shots across separate visits. In the filing, Kennedy asked whether the current categories unintentionally imply that parental permission or meaningful clinical discussion applies only to shared decision-making recommendations. Stakeholders are being asked to provide input on both evidence standards—especially where randomized trials are limited—and potential new classification structures. For biotech and vaccine manufacturers, the administrative next steps could affect product labeling, implementation timelines, and the compliance environment surrounding routine childhood immunization.