U.S.LA County Meets Metrics To Move Tiers, Must Hold Steady For 2 Consecutive Weeks September 22, 2020 FacebookTwitterReddItWhatsAppLinkedinTelegramViberPinterestTumblrEmailMixVKDiggLINEPrint Health officials also reported that L.A. County has met the metric thresholds to move up to the red tier from purple — though the data must hold for two consecutive weeks before being allowed to loosen local restrictions on businesses.