AVMA have been working with CDC on getting the guidance for veterinary facilities updated. They have received the following from CDC as interim direction while work on the update is continuing.
"Veterinary clinics should follow the masking guidance for the general public. While veterinarians are considered clinicians, the settings in which they work are not used to treat humans with suspected or confirmed COVID-19, and instances of animal-to-human transmission appear to be very rare. Veterinary clinics should consider local transmission and vaccination rates when creating clinic policies for PPE use and interactions with clients."
The following guidance is among that available from the CDC:
When You've Been Fully Vaccinated
Key point: Fully vaccinated people can resume activities without wearing a mask or physically distancing, except where required by federal, state, local, tribal, or territorial laws, rules, and regulations, including local business and workplace guidance
Interim Public Health Recommendations for Fully Vaccinated People
Key point: Risk of SARS-CoV-2 infection is minimal for fully vaccinated people. The risk of SARS-CoV-2 transmission from fully vaccinated people to unvaccinated people is also reduced. Therefore, fully vaccinated people can resume activities without wearing a mask or physically distancing, except where required by federal, state, local, tribal, or territorial laws, rules, and regulations, including local business and workplace guidance.
Guidance for Unvaccinated People: How to Protect Yourself and Others
Key point: Masks should be worn in addition to staying at least 6 feet apart, especially around people who don't live with you.
Guidance for Unvaccinated People: Wearing Masks
Key point: A mask is NOT a substitute for social distancing. Masks should still be worn in addition to staying at least 6 feet apart, especially when indoors around people who don't live in your household.
Science Brief: COVID-19 and Vaccinations (Background Rationale)
This reference includes scientific test results and references to research papers.
A growing body of evidence indicates that people fully vaccinated with an mRNA vaccine (Pfizer-BioNTech and Moderna) are less likely to have asymptomatic infection or to transmit SARS-CoV-2 to others. Studies are underway to learn more about the benefits of Johnson & Johnson/Janssen vaccine. However, the risk for SARS-CoV-2 infection in fully vaccinated people cannot be completely eliminated as long as there is continued community transmission of the virus.
Evidence suggests the U.S. COVID-19 vaccination program has the potential to substantially reduce the burden of disease in the United States by preventing illness in fully vaccinated people and interrupting chains of transmission. The risks of SARS-CoV-2 infection in fully vaccinated people cannot be completely eliminated where community transmission of the virus is widespread. Vaccinated people could potentially still become infected and spread the virus to others. However, in the context of rapidly increasing vaccination coverage, modeling data predict reduced benefits of non-pharmaceutical prevention measures and minimal impact on the course of the pandemic of fully vaccinated people returning to normal activities.