Regarding one county in Oregon, USA, see Multnomah County officials reinstate mask mandate - OPB . One of the things it says the following. "The new mask mandate was announced Monday in a press conference with Multnomah County Chair Deborah Kafoury. It is the first county in Oregon to require masks since the state mandate was lifted on June 30. ... Violators could face a warning or a fine up to a $1,000. Multnomah County joins a growing number of counties across the country requiring masks to stop the spread of the more contagious, more aggressive delta variant."
Regarding the entire state of Oregon see Gov. Kate Brown shares details about Oregon’s new indoor mask mandate as COVID hospitalizations break records: Watch - oregonlive.com and Oregon Gov. Kate Brown outlines details of new indoor mask mandate - OPB .