The main purpose of this legislative proposal is to prohibit any mandates requiring individuals to receive COVID-19 vaccinations. It aims to ensure that no federal agency can enforce vaccination requirements and that access to federal properties and services cannot be conditioned on vaccination status. Key provisions of this proposal include a clear ban on federal agencies from issuing any rules or guidance that would mandate COVID-19 vaccinations. It also specifies that individuals cannot be required to show proof of vaccination to access federal properties or services.