Providers who are taking care of children from only one family (in addition to their own children) are exempt from licensing. This can include nannies and babysitters who come into your home to take care of only your children.
Choosing a Nanny - 2-page handout with detailed steps for finding a nanny
Sample Interview Questions

TrustLine
TrustLine is the registry of in-home child care providers in California who have passed background screening. This background check service can be used as a safety check for all providers who are exempt from licensing. All caregivers listed with TrustLine have been cleared through a fingerprint check of records at the California Department of Justice. This means they have no disqualifying criminal convictions or substantiated child abuse reports in California. TrustLine is administered by the California Department of Social Services and the non-profit Child Care Resource and Referral Network. It is endorsed by the California Academy of Pediatrics. You can learn more about Trustline at its web site: http://trustline.org/basics.htm.