By ADAM BEAM Associated Press SACRAMENTO, Calif. (AP) â When California told school districts they must still require masks for students and teachers indoors, the state left no room for doubt about its enforcement: If students refused, schools were to send them home. But hours after that announcement on Monday, public health officials in Gov. Gavin Newsom's administration abruptly changed course and said school districts would decide for themselves how to enforce the mask mandate. The reversal marked a bumpy rollout of the state's new coronavirus rules for California's schools, which are required to resume in-person instruction for the upcoming school year. Speaking after an event in Los Angeles Tuesday, Newsom downplayed the reversal, saying enforcement of mask-wearing has âalways been a local responsibility.â