Important update: Healthcare facilities
CDC has updated select ways to operate healthcare systems effectively in response to COVID-19 vaccination. Learn more
UPDATEGiven new evidence on the B.1.617.2 (Delta) variant, CDC has updated the guidance for fully vaccinated people. CDC recommends universal indoor masking for all teachers, staff, students, and visitors to K-12 schools, regardless of vaccination status. Children should return to full-time in-person learning in the fall with layered prevention strategies in place.
Laws and Regulations
Laws and Regulations
Updated Aug. 3, 2021
To help prevent the spread of COVID-19 and help our country cope during the pandemic, CDC has occasionally issued legally binding orders and regulations.
- Face Masks Required in Public Transportation and at Transportation Hubs
People must wear face masks on public transportation and at transportation hubs, including at airports.
- COVID-19 Test or Proof of Recovery Needed for Arrival in the US
Air passengers arriving in the United States from a foreign country must present a negative COVID-19 test before boarding their flights. The test must not be more than three days old. Alternatively, passengers may present documentation showing that they have recovered from COVID-19.
- Order Suspending the Right To Introduce Certain Persons From Countries Where a Quarantinable Communicable Disease Existspdf icon
Following an assessment of the current status of the COVID-19 public health emergency and the situation in congregate settings where noncitizens seeking to enter the United States are processed and held, CDC issues an order suspending the right to introduce certain noncitizens attempting to enter the U.S. from Canada or Mexico (regardless of country of origin) at or between ports of entry. In recognition of the COVID-19 mitigation measures available, the Order includes exceptions for Unaccompanied Children (UC), certain individuals on a case-by-case basis based on the totality of the circumstances, and individuals participating in certain programs approved by the U.S. Department of Homeland Security (DHS) that incorporate appropriate COVID-19 mitigation protocols as recommended by CDC.
This Order and accompanying public health assessment replace and supersede the CDC Order Suspending Introduction of Certain Persons from Countries where a Communicable Disease Existspdf icon (first issuedpdf icon on 3/20/2020; extendedexternal icon on 4/22/2020, amendedpdf icon on 5/19/2020, and replaced on 10/13/2020).
- Order Excepting Unaccompanied Children from Order Suspending the Right to Introduce Certain Noncitizens into the U.S.pdf iconpdf icon
During COVID-19, CDC issued an order suspending the right to introduce certain noncitizens attempting to enter the U.S. from Canada or Mexico (regardless of country of origin) at or between ports of entry. CDC subsequently temporarily excepted unaccompanied noncitizen children from the order; the implementation of this order confirms the exception for unaccompanied noncitizen children.