Information on the National Examination in Aromatherapy, available through the ARC. Includes frequently asked questions, how to apply, what's new and contact information.

International organization that offers standards for certification, safety, and professional conduct for its members. Provides information about membership, education, policies, events, and insurance.

Worldwide organization located in London, offering workshops, articles, and a magazine. Provides information about activities, membership, news, and training.

A non-profit educational organization devoted to aromatherapy in the United States. Provides information on essential oils for health and healing purposes.