New Guidance Clarifies Uniform California Rule for Treatment of Disabled Customers Who Cannot Wear Face Coverings By David Raizman on June 24, 2020 Email this postTweet this postLike this postShare this post on LinkedIn The California Department of Public Health’s newly issued “Guidance for the Use of Face Coverings” replaces a patchwork of county and municipal standards with a statewide standard mandating face coverings in businesses and other public places.