Davis Wright Tremaine will require its attorneys and staff to be vaccinated if they are to return to the firm’s office, according to firm guidelines announced on Thursday. It is the first Am Law 200 firm to publicly announce such a requirement.

The new policy requires that firm employees provide proof of vaccination “in the coming months” to be allowed to return to the office or attend firm-sponsored events. Those who cannot get vaccinated due to disability, advice of a medical provider or religious beliefs will be asked to contact the firm’s Human Resources department to work out “reasonable accommodations.”