The California Personal Responsibility and Education Program (PREP) provides sexual health education to adolescents via effective, evidence-based program models. This includes instruction on abstinence and contraception to prevent pregnancy and sexually transmitted infections. The program focuses on youth ages 10-19 facing adverse conditions or living in a high-need area. Services are offered in a range of settings, from schools and juvenile justice facilities, to homeless shelters and group homes. PREPās goal is to promote and improve the sexual and reproductive health of high-need youth populations.