Sen. Dianne Feinstein (D-Calif.) introduced a bill on Wednesday that would require travelers to be fully vaccinated against COVID-19 or test negative before domestic travel.

The U.S. Air Travel Public Safety Act would require the Department of Health and Human Services and the Federal Aviation Administration to develop standards for airlines to verify that a person has either been vaccinated, tested negative for COVID-19 or has fully recovered from a coronavirus infection to be able to fly.

In a statement, Feinstein said the U.S. cannot go through a surge in coronavirus infections this holiday season like the surge that occurred during the 2020 winter season.

“Ensuring that air travelers protect themselves and their destination communities from this disease is critical to prevent the next surge, particularly if we confront new, more virulent variants of COVID-19,” Feinstein said.

“It only makes sense that we also ensure the millions of airline passengers that crisscross our country aren’t contributing to further transmission, especially as young children remain ineligible to be vaccinated,” she continued.