The Maryland Environmental Noise Act of 1974 provides for the protection of citizens from the impact of transportation related noise. The aviation portion of the Act requires the Maryland Aviation Administration (MAA) to create an Airport Noise Zone (ANZ) to control incompatible land development around BWI Marshall Airport and a Noise Abatement Plan (NAP) to minimize the potential impact of aircraft noise to those living near the Airport.
The initial ANZ and NAP for BWI Marshall Airport was established in 1976, and was updated and certified in 2014, incorporated by reference at COMAR 11.03.01.12-B(4). The MAA has completed an update to the BWI Marshall ANZ.
2025 BWI Marshall ANZ Update
In early 2025, MAA began the process to update the BWI Marshall ANZ. The updated ANZ will reflect existing conditions in 2025, and forecast conditions in 2030 and 2035. MAA has convened a Stakeholder Advisory Committee that will meet throughout the year and will host a public information meeting/public hearing near the end of 2025. The 2025 ANZ, once complete, will be the certified regulation and replace the 2020 ANZ. Please reach out to the MAA Project Manager, Mr. Bruce Rineer, via email at MDOT-MAA-ANZ@assedollc.com if you have any questions about the ANZ Update process.

