Cert Pool is a group of clerks in the U.S. Supreme Court who read petitions for certiorari and writes memorandums for the justices with a synopsis of the facts and issues and often a recommendation of whether a grant of certiorari is warranted. It was instituted in 1973, as one of the institutional reforms of Chief Justice Warren E. Burger.
An administrator in the chief justice's chambers systematically allocates the cases on each conference list among the participating justices. Each justice's law clerks then divide the cases assigned to that justice's chambers among themselves. With eight justices in the pool and four clerks in most chambers, a clerk generally writes four pool memos each week. The finished memos go to the administrator, who checks them for technical errors and distributes them to the participating justices.