What is AB12?
AB12 is short for Assembly Bill 12. According to the Department of Social Services at CA.gov:
"Assembly Bill 12 was signed into law on September 30, 2010 and took effect on January 1, 2012. AB 12, and the subsequent AB 212, implement provisions of the Federal Fostering Connections to Success and Increasing Adoptions Act of 2008 (PL 110-351) to improve outcomes for youth in foster care. A provision of the Federal Fostering Connections to Success law permits states to extend title IV-E assistance to eligible child welfare or probation youth that remain in foster care up to age 21. California has opted to extend assistance up to the age of 19 in 2012, age 20 in 2013, and may go up to age 21, depending on additional money being appropriated by the Legislature in 2014."
Long story short, AB12 allows foster family agencies to extend the age of care provided to foster children from 18 years of age to 21. Assembly Bill 12 makes programs such as THP and THP+FC possible.