The purposes of this study were to describe the Washington State Certified Registered Nurse Anesthetist (CRNA) workforce and analyze selected dimensions of their clinical practice. The authors developed a 31-item CRNA Practice Questionnaire that was mailed to CRNAs licensed in Washington with an address in Washington, Oregon and Idaho. Workforce data may assist CRNAs when negotiating with employers and institutions and in resolving interprofessional conflicts and can have implications for scope of practice, policy and legislative issues.