Print The state Sunday night, March 7, denied at least three San Diego County school districts the chance to reopen their middle and high schools for regular in-person instruction, even though the districts said they had received the county’s blessing to reopen. San Dieguito Union High, Poway Unified and Carlsbad Unified had submitted applications to open their middle and high schools, even though the county has not yet reached the less-restrictive red tier, which is the state requirement for opening secondary schools. All three applied through a special state exemption process that allows districts to reopen schools if they believe they had qualified as already “reopened” before the state issued new reopening rules in mid-January.