American and Canadian Underwater Certifications Inc. is an international recreational diving membership and diver training organization. Formerly known as the Association of Canadian Underwater Councils, formed in 1969. It was formed as a not-for-profit collective of regional dive councils to create a national forum for their common interest and concerns. It soon began developing a training curriculum better suited to the extreme Canadian diving conditions that many other training agencies neglected. ACUC, incorporated in 1986 in Canada by Robert Cronkwright. Cronkwright. In May 2003 longtime friend and ITE, Juan Rodriguez became the sole owner and President when Cronkwright retired. ACUC has operates internationally in Canada, US, Spain, Latin America, Europe and Asia. ACUC courses are all based on ISO standards and meet and usually exceed those of the WRSTC.