Misuse of Drugs Act (New Zealand)

New Zealand's Misuse of Drugs Act is a national drug control law that classifies drugs into three classes, or Schedules, based on their risk of harm:
 * Class A, or First Schedule: Very high risk of harm;
 * Class B, or Second Schedule: High risk of harm; and
 * Class C, or Third Schedule: Moderate risk of harm.
 * Fourth Schedule: Precursor substances.

The Expert Advisory Committee on Drugs (EACD) makes Scheduling decisions, based on scientific and medical evidence and/or international treaty obligations. New Zealand is a party to the Single Convention on Narcotic Drugs, the Convention on Psychotropic Substances, and the United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances. National Drug Policy New Zealand notes, "The Conventions place certain obligations on signatory countries. When the UN classifies (or re-classifies) a substance under one of the above Conventions, it requires signatory countries to amend their domestic legislation to ensure consistency with the UN’s amendment. Accordingly, the impetus for some of the drugs to be considered by the EACD will originate from decisions made at the UN".