The US Centers for Disease Control and Prevention unveiled new mask guidelines for fully vaccinated Americans on Tuesday.

The CDC said, fully vaccinated people can participate in outdoor activities and recreation without a face covering.

The new guidelines also make it non-mandatory for a fully vaccinated person to not get tested for COVID 19 before or after travel inside the United States.

Dining unmasked at an outdoor restaurant with friends from multiple households is also acceptable, said the CDC.

Fully vaccinated people can participate in outdoor activities and recreation without a face covering, the CDC said.

They can also meet outdoors with a small group of other fully vaccinated people, or a mixture of fully vaccinated and unvaccinated people, according to the new guidance.

Moreover, fully vaccinated people can refrain from testing before leaving the United States for international travel and refrain from self-quarantine after arriving back in the United States, according to the CDC.

The CDC defined "fully vaccinated" people as two weeks after receiving the second dose in Pfizer-BioNTech or Moderna COVID-19 shots, or two weeks after receiving the single-dose Johnson and Johnson shot.

"Today is another day we can take a step back to the normalcy of before," said CDC Director Rochelle Walensky at a briefing.

The new guidelines also urged the continued use of masks in most indoor settings and crowded outdoor settings. The CDC asks fully vaccinated people to avoid indoor large gatherings.

"The benefits of reducing social isolation and relaxing some measures such as quarantine requirements may outweigh the residual risk of fully vaccinated people becoming ill with COVID-19 or transmitting SARS-CoV-2 to others," said the CDC.