1st Cir.

Law & Legal abbreviation · Court

1st Cir.
Stands forUnited States Court of Appeals for the First Circuit
CategoriesLaw & Legal

1st Cir. stands for United States Court of Appeals for the First Circuit, a court abbreviation.

Smallest of the regional federal courts of appeals, with six authorized judgeships, hearing appeals from Maine, Massachusetts, New Hampshire, Rhode Island and Puerto Rico. It sits in Boston and periodically hears arguments in San Juan.

Example: The district court's suppression ruling was affirmed by the 1st Cir. in a two-to-one decision.

Usage notes

Bluebook form: "(1st Cir. 2020)". The federal district court in Puerto Rico is an Article III court like those in the states, so its appeals come here rather than to a territorial court. Like every circuit, it is bound by Supreme Court precedent and by its own earlier published panel decisions unless the full court overrules them.

More court abbreviations

  • 10th Cir. – United States Court of Appeals for the Tenth Circuit
  • 11th Cir. – United States Court of Appeals for the Eleventh Circuit
  • 2d Cir. – United States Court of Appeals for the Second Circuit
  • 3d Cir. – United States Court of Appeals for the Third Circuit
  • 4th Cir. – United States Court of Appeals for the Fourth Circuit
  • 5th Cir. – United States Court of Appeals for the Fifth Circuit
  • 6th Cir. – United States Court of Appeals for the Sixth Circuit
  • 7th Cir. – United States Court of Appeals for the Seventh Circuit
  • 8th Cir. – United States Court of Appeals for the Eighth Circuit
  • 9th Cir. – United States Court of Appeals for the Ninth Circuit
  • AAG – Assistant attorney general
  • ADA – Assistant district attorney

See all 87 court abbreviations →

This entry is for general education and is not legal advice. Abbreviation use varies between institutions; always confirm in context.