- American Health Care Association http://www.ahcancal.org/
- California Department of Public Health https://www.cdph.ca.gov/
- Home Care Association of America http://www.hcaoa.org/
- Home Health Aide License Verification http://cvl.cdph.ca.gov/SearchPage.aspx
- Licensed Vocational Nurse Verification https://www.breeze.ca.gov/datamart/loginCADCA.do
- National Association for Home Care & Hospice http://www.nahc.org/
- Registered Nurse License Verification http://cvl.cdph.ca.gov/SearchPage.aspx
- U.S. Department of Health and Human Services http://www.hhs.gov/