In the prior administration, I highlighted the challenge of constantly changing OSHA/state/CDC website guidelines. We now have the advantage of hindsight, extended scientific research and hopefully guidance based on science rather than politics. The Gibbons alert includes a good summary checklist of prevention program elements. My recommendation is to review your existing prevention program against the minor changes and verify that you did indeed preserve the prior guidance for every iteration of your programs to date. Many of the essential program elements involve employee communications and training. These need to be preserved. Have you had employee Covid related deaths or disabilities? If so, get ahead of possible negligence suits or OSHA inspections with a company prevention program timeline and supporting documentation. Just my non-attorney better practice recommendation.