Selya was nominated by President Ronald Reagan on July 27, 1982, to a seat on the United States District Court for the District of Rhode Island vacated by Judge Raymond James Pettine. He was confirmed by the United States Senate on August 18, 1982, and received commission the same day. His service was terminated on November 24, 1986, due to elevation to the First Circuit. Selya was nominated by President Reagan on September 26, 1986, to the United States Court of Appeals for the First Circuit, to a new seat created by 98 Stat. 333. He was confirmed by the Senate on October 8, 1986, and received commission on October 14, 1986. He assumed senior status on December 31, 2006. In 2000, Chief Justice William Rehnquist appointed Selya to the Judicial Panel on Multidistrict Litigation, a position Selya held until 2004. In 2005, Chief Justice John Roberts appointed Selya to the United States Foreign Intelligence Surveillance Court of Review, and in 2008 Selya was appointed by Supreme Court Chief Justice Roberts to the chief judgeship of the Court of Review. As the United States Foreign Intelligence Surveillance Court is not an adversarial court and only hears argument from the United States government, the Court of Review solely hears appeals from that court when the government is denied a warrant for wiretap surveillance of suspected terrorists or spies. Judge Selya assumed senior status at the end of 2006. Then Senator Lincoln Chafee recommended that former Rhode Island Supreme Court Justice Robert G. Flanders, Jr. be nominated to replace Selya. President George W. Bush interviewed Flanders, U.S. District Judge William E. Smith, and Rhode IslandSupreme Court Justice Paul A. Suttell for the position, before selecting Judge Smith as the nominee. Rhode Island Senator Sheldon Whitehouse asserted that, due to the President's failure to work with Whitehouse and fellow Democratic senator Jack Reed in selecting a consensus candidate, the vacancy left by Selya's departure would not be filled during Bush's tenure. On October 6, 2009, Obama formally nominated Ojetta Thompson to Selya's seat on the First Circuit. She was confirmed by the Senate in a 98-0 vote on March 17, 2010.
Writing style
As a private practitioner, Selya was often lulled to sleep by the legalese and boilerplate rhetoric in judicial opinions, a matter he has sought to remedy since ascending to the bench: "I made a commitment to myself that I would attempt to prove that sound jurisprudence and interesting prose are not mutually exclusive." Selya disclaims "lexiphanicism for its own sake." For Selya, precision is a precondition for his use of a word, and "f it does not fit, I won't submit." Selya aspires toward readability by using uncommon words in contexts that make the words' meanings clear; and apart from his vocabulary, Selya's prose is notable for its readability and its avoidance of clotted or formulaic legal rhetoric. It is clear that Selya is widely read by his colleagues. Over the years 1998–2000, Selya numbered as the fourth most cited federal judge outside of the Supreme Court, as measured by the number of citations to his opinions from outside of his own circuit. Occupying the three positions above Selya were Judges Richard Posner, Frank Easterbrook, and Sandra Lynch. Selya's writing style is not without its critics. Boston attorney Harvey A. Silverglate has written that his opinions are "well known" for their "remarkably judgmental but politically naive language," and that "t is not unusual to see Selya gratuitously criticize, in sarcastic and sometimes grandiloquent fashion, a party or witness. He has earned a reputation for tossing around both his power and trademark one-hundred-dollar words."
Notable opinions
One of Selya's recent opinions, Ungar v. PLO, has been singled out by The Green Bag as a notable example of good judicial writing. A representative sampling of recent opinions includes Aguilar v. ICE, 510 F.3d 1 ; Havlik v. Johnson & Wales University, 509 F.3d 25 ; Alexander v. Brigham & Women's Physicians Org., 513 F.3d 37 ; United States v. Martin, 520 F.3d 87 ; Connectu LLC v. Zuckerberg, 522 F.3d 82 ; Rio Mar Assocs., LP, SE v. UHS of Puerto Rico, Inc., 522 F.3d 159 ; and Morales v. Sociedad Espanola de Auxilio Mutuo y Benificencia, 2008 U.S. App. 2380.