Chesapeake Bay Critical Area Mapping Update

Sectional Map Amendment, House Bill 1253

  • The Chesapeake Bay Critical Area (CBCA) encompasses land that is within 1,000 feet of the mean high-tide line of streams and rivers in the State of Maryland. In Prince George’s County, the CBCA is located on the land adjacent to the tidal portions of the Anacostia, Potomac, and Patuxent Rivers within an overlay zone.
  • House Bill 1253 was passed in 2008 to update the boundaries of the CBCA, because the boundaries have not been updated since they were originally established in the 1980s using 1972 paper maps. The process that will be used to update the map in Prince George’s County is the “stand-alone” sectional map amendment (SMA) process, where the SMA consists of only the map and not a master or sector plan. This process involves an initiation of the project by the Planning Board with the County Council’s concurrence via a council resolution.
  • April 10, 2014 - the Prince George’s County Planning Board initiated an SMA for the Chesapeake Bay Critical Area (CBCA). The County Council, sitting as the District Council, concurred with the Planning Board's initiation in CR-21-2014 approved on April 22, 2014.
  • June 12, 2014 - the Planning Board held a public hearing and received testimony on the SMA. On June 26, 2014, the Planning Board adopted the SMA and authorized transmittal of the package to the County Council for their consideration.
  • October 21, 2014 - the County Council approved CR-97-2014 that approved the updated map. Three Council Bills (CB-64-2014, CB-65-2014 and CB-66-2014) have been approved by the County Council in support of the updated map.


The maps for Prince George’s County are provided on the Department of Natural Resources web site and can be seen and searched by following the instructions.


Instructions on how to access the Interactive Critical Area Mapping Tool for the Prince George's County map. You will need Internet Explorer 8 or better to view/use this tool.
  1. Log on to the Critical Area Map
  2. A Critical Area Map Status Information consent box will open up. The viewer must check the consent box to access the map.
  3. Once in the map, at the top left corner, click on the Select County Tab and select Prince George's. This will open up the property search page.
  4. You can then search for a property by the address, the tax account ID number, the map number, or the parcel number.
  5. NOTE: To search the map without a specific address, map, or parcel, you can click on the Enable Parcel Selection button (blue button, left drop down menu under the map tab).


For questions regarding the state law and mapping contact Lisa Hoerger, 410-260-3460, of the Chesapeake and Coastal Bays Commission staff, or visit their web site for more information on this project.

General questions regarding the mapping process in Prince George’s County should be directed to the M-NCPPC Planning Department’s Planning Information Services at 301-952-3208.