Citators are used to "[T]race the judicial treatment and history of cases and the judicial construction and legislative history of ... statutes." Citators available online and in print for states; federal courts and administrative agencies; selected subject areas such as tax, labor, and bankruptcy; and general categories including law reviews; acts and cases by popular name; Restatements; and the National Reporter System (P. & P 2d, etc.). The Shepard's Oregon citator published semi-monthly contains citing information on Oregon court rules, ordinances, city charters and jury instructions not found in the Pacific Citator. The Oregon citator also cites to local sources including attorney general opinions, Oregon law school law reviews and the Oregon State Bar Bulletin.
For additional information about citators, see "Citators".