The National Guild of Hypnotists requires its member to conform to the following ethical principles, and shall hold members accountable for any departure from these principles.

1. Client Welfare: Members shall make the physical and mental well being of each client a prime consideration.
2. Client Safety: Members shall not engage in verbal, physical or sexual abuse of any client.
3. Practice Limits: Members shall use hypnosis strictly within the limits of their training and competence and in conformity to the laws of their state.
4. Advertising: Members shall be truthful in their advertising.
5. Referred Practice: Members shall engage in hypnotic work with a client regarding a medical or mental disease only on written referral from an appropriately licensed medical or mental health professional, except when otherwise provided for by state law.
6. Reasonable Practice: Members shall withhold non-referred hypnotic services if a client's behavior, appearance or statements would lead a reasonable person to believe that the client should be evaluated by a licensed health care professional. Members shall provide services to such clients only after evaluation and with the approval of the licensed health care professional.
7. Colleagues: Members shall treat hypnotist colleagues without public defamation.