Areas of the county that are designated as Chesapeake Bay Preservation Areas (CBPAs) are categorized as either resource protection areas (RPAs) or resource management areas (RMAs).
RPAs are protected from most development because, left intact, they function to improve and protect water quality.
RMAs are regulated to protect RPAs and water resources from degradation resulting from development and land disturbing activity.
On November 23, 2004, the Chesterfield County Board of Supervisors adopted amendments to the Chesapeake Bay Preservation Ordinance. These amendments were developed to comply with changes to the State Chesapeake Bay Preservation Designation and Management Regulations that were adopted in 2001.