The Oklahoma Publications Clearinghouse (OPC) classification system (sometimes referred to as OKDocs) uses an alphanumeric arrangement of letters to designate agencies and numbers to indicate the type of publication. It was designed to group related agencies together and to make shelving and locating Oklahoma documents simpler.
A 3100 .1 L357H 2002-2004
Arts Council Oklahoma Form division Cutter number Year
Below are prefixes from the Oklahoma Documents Classification System for other departments/agencies:
A 1100-1140 Agriculture, Food, and Forestry
C 3900-3970 Commerce, business development
E 1800-2135 Education
H 800-1195 Health and Health facilities
H 3000 Human Services
L 400 Labor
L 1300-1335 Legislature
Shelving Note: Book-size Oklahoma documents are shelved in regular library shelving using Library of Congress Classification call numbers. Magazines and newsletters are shelved alphabetically in periodical shelving on the third floor, smaller documents are shelved by OPC classification in file cabinets on the second floor of the west side of the library.