A significant policy change has been implemented in the nation's second-largest school district. The district, located in Los Angeles, has banned classroom screen time for students before the 2nd grade. This move is part of an effort to establish stricter screen time policies.

Other schools in the district have also implemented caps on screen time, although details of these caps are not specified. For more information on this policy change, readers can refer to the source, KTSM 9 News. Further details on the implementation and effects of this policy may be available from this source.