Specifications include, but are not limited to: In response to a Minnesota Legislative Auditor’s report in 2006, the MDA broadened state-level reviews of pesticide registrations in a process called special registration reviews. Special registration reviews result in a greater understanding of potential unreasonable adverse effects of pesticides on the environment or human health in Minnesota and describe a variety of opportunities for state-specific actions. The scope of the reviews varies depending on the potential education, outreach, and enforcement needs identified by the MDA. Previously, the MDA completed in-depth special registration reviews for several pesticides. Chlorpyrifos is a pesticide widely used in Minnesota to manage a variety of arthropod pests.