Between Aug. 10 and Sept. 2, Illinois, New Mexico, Oregon, and Washington announced new indoor mask requirements for both vaccinated and unvaccinated individuals.

In Illinois, an indoor mask requirement for vaccinated and unvaccinated individuals went into effect on Aug. 30. Gov. J.B. Pritzker (D) announced the policy on Aug. 26. Illinois had previously lifted its mask requirement, which lasted for 407 days between May 1, 2020, and June 11, 2021.

Oregon Gov. Kate Brown (D) announced an indoor mask requirement for vaccinated and unvaccinated individuals on Aug. 11, and announced an outdoor mask requirement for vaccinated and unvaccinated individuals on Aug. 24. The orders took effect on Aug. 13 and Aug. 27, respectively. Oregon had previously lifted its mask requirement, which lasted for 365 days between July 1, 2020, and June 30, 2021.

On Aug. 17, New Mexico Gov. Michelle Lujan Grisham (D) announced an indoor mask requirement for vaccinated and unvaccinated individuals would take effect on Aug. 20. Previously, New Mexico had an indoor mask requirement in place only for unvaccinated individuals. It had lifted the requirement for vaccinated individuals on May 14, 2021.

In Washington, an indoor mask requirement for vaccinated and unvaccinated individuals took effect on Aug. 23. Gov. Jay Inslee (D) announced the policy on Aug. 18. The requirement does not apply to small gatherings or office environments where everyone is vaccinated and interaction with the public is rare, or while working alone. Inslee previously lifted the indoor mask requirement for vaccinated individuals on May 13, 2021.

Three states currently have statewide mask orders for unvaccinated individuals, and 7 states have statewide mask orders for vaccinated and unvaccinated individuals. All 10 of the states have Democratic governors.

In total, 39 states have issued statewide mask requirements. Thirty-two states (16 states with Republican governors and 16 states with Democratic governors) have allowed statewide orders to expire. Three states (Louisiana, Oregon, and Illinois) that allowed a statewide order to fully expire later reinstated a mask order.