California’s reopening plan is based on a tier system, with each tier being based on the level of transmission. Tiers vary from county to county. The San Francisco area has moved from Tier 1, Widespread, to Tier 2 (Substantial). In Tier 1, most nonessential businesses were closed. Now, in Tier 2, only some nonessential businesses will remain closed. Others will be allowed to open with modifications. So, what types of businesses will reopen now that we’ve reached Tier 2?