Massachusetts Port Authority One Harborside Drive, Suite 200S East , MA 02128-2909 Telephone (617) 568-5000 www.massport.com

December 2, 2020

Re: Boston Logan International Airport/Critical Airspace Surfaces

To the Massachusetts Real Estate Development Community:

As the owner and operator of Boston Logan International Airport (Logan Airport), the Massachusetts Port Authority (Massport) is pleased to provide you with a copy of our composite map of Critical Airspace Surfaces for Boston Logan Airport (Airspace Map).

The Boston-Logan Airspace Map is designed to inform local, municipal and state planning agencies, regulators and sponsors of real estate projects about Boston-Logan airspace designations and guidelines. Our goal is to enable projects to be planned, permitted and constructed in a manner that avoids any adverse impact on Logan airspace and, consequently, on Logan operations. Massport utilizes the Airspace Map to educate private and public interests on the critical height criteria that must be maintained near the Airport to avoid encroachment into and degradation of Logan’s airspace and provide a reference resource. Encroachment into Logan’s airspace will reduce safety margins and impact runway use patterns over communities. The Airspace Map is available at the following link: https://www.massport.com/logan-airport/about-logan/logan-airspace-map/.

Review of the Airspace Map and early coordination with Massport are the essential first steps developers must take before filing with the Federal Aviation Administration’s (FAA) through the 7460 Obstruction Evaluation process. This formal review of specific projects is administered by the FAA for analysis of and determination of “hazard” or “no hazard” to navigable airspace. We request that project sponsors contact Massport as early in the planning process as possible and before filing with the FAA. This timeline will ensure consistency with the Airspace Map and minimize complications during the FAA review.

Massport urges you to use the Airspace Map as you consider development plans around Boston-Logan. Massport staff is available to provide a more detailed explanation of the map or answer questions about specific projects, including providing building heights analysis in a timely manner. Please feel free to contact Flavio Leo directly at 617-568-3528 with any questions.

Sincerely,

Andrew G. Hargens Flavio Leo Chief Development Officer Director, Aviation Planning & Strategy

Cc: J. Greeley (BPDA), T. Kim (MEPA), C. D’Alessandro (FAA), D. Padien (DEP)

Operating Boston Logan International Airport  general cargo and passenger terminals   Boston Fish Pier  Commonwealth Pier (site of World Trade Center Boston)  Worcester Regional Airport