coronavirus June 11, 2021 6:40 am California's Tiered Reopening System Coming to an End For months, four colored tiers have guided Californians through what’s open and what’s closed. That’s about to end. Cierra Johnson reports. US & World Videos 2:19 San Francisco barbershop struggles to stay open after pandemic 0:51 Alameda County using dogs to detect COVID 3:57 Interview: Doctor's perspective on COVID 4 years after shutdown started 2:27 Marking 4 years since COVID-19 shut down the Bay Area 2:09 CDC updates COVID isolation guidelines