Recently the MBTA filed a Notice of Project Change for the Green Line Extension. You can find the document here. The original closing date for the comment period was Nov. 28, 2017. The comment period has been been extended to 5:00 pm on December 12.
Comments must be addressed to:
The Secretary of Energy and Environmental Affairs
Executive Office of Energy and Environmental Affairs
Attn: Erin Flaherty, MEPA Analyst.
EEA No. 13886
100 Cambridge Street, Suite 900
Boston, MA 02114