- American Staffing Associationwww.americanstaffing.net
- American Nursing Associationwww.nursingworld.org
- Maryland Department of Health – Office of Health Care Qualitywww.health.maryland.gov
- U.S. Department of Health & Human Serviceswww.hhs.gov
- U.S. Department of Laborwww.dol.gov
