On September 9, 2021, President Biden announced a Path out of the Pandemic-POTUS COVID-19 Action Plan, in response to the high community spread of the Delta Variant of COVID-19, which is damaging public health and slowing economic recovery from the pandemic.
Also included in the announcement are two Executive Orders pertaining to mandatory vaccinations and safety protocols for federal employees and for federal sponsored contractors. Those can also be downloaded: Executive Order on Requiring Coronavirus Disease 2019 Vaccination for Federal Employees _ The White House and Executive Order on Ensuring Adequate COVID Safety Protocols for Federal Contractors _ The White House.
Federal agencies and employees can get the latest workplace safety guidance and other information from the Safer Federal Workforce Taskforce, landing page here: https://www.saferfederalworkforce.gov/.