About U.S. Court of Appeals, First Circuit

U.S. Court of Appeals, First Circuit is based in Boston.

The First Circuit encompasses the federal courts in Maine, Massachusetts, New Hampshire, Puerto Rico, and Rhode Island.

Court Locations

CM/ECF Information

U.S. Court of Appeals, First Circuit's CM/ECF version is NextGen CM/ECF Appellate Release 1.8. The maximum file size for a PDF upload is fifty (50) megabytes. CM/ECF for U.S. Court of Appeals, First Circuit is available at:

The CM/ECF Helpdesk phone numbers for U.S. Court of Appeals, First Circuit are:

• 617-748-9200
• 617-748-9650