In November 2022, California established the Arts and Music in Schools Act to fund arts education programs in TK-12 public schools. With funding from the William and Flora Hewlett Foundation, SRI Education led an inquiry to estimate the number of new arts teachers required to fulfill the promise of the act. This brief presents funding allocations and teacher costs to calculate new teachers needed by region and county. It also provides information on the current state of the arts teacher workforce and arts teacher credentialing programs.