chairman, chairwoman, chairperson - Chair is preferred: department chair, chair of the Board of Trustees. Never use chairperson. Capitalize if used as a formal title preceding a name.
cities - On first reference use city names with their state designations, except for major cities recognizable without their state designations, such as New York City, Los Angeles, Chicago, Philadelphia, San Francisco, Paris, London, Tokyo. No need for state designations for Northwest cities such as Spokane, Seattle, Tacoma, Olympia, Coeur d’Alene and Boise. However, use Portland, Ore.; to differentiate it from Portland, Maine. Use AP Style abbreviated state designations in copy. Use two-letter post office state designations only when using it in an address.
classes, courses - Uppercase when referring to a specific class, i.e. Psychology 101, or Law and Ethics in the 21st Century. Lowercase when making a general reference to courses: He studies history and political science.
clerical titles - When referring to a Catholic priest in University publications, on first reference use the title Father (uppercase) preceding his name: Father Edward Morton. If he is a Jesuit, use the initials S.J. afterward: Father Edward Morton, S.J. On second reference, use Fr. (abbreviated) before his last name: Fr. Morton. For Catholic sisters, same rules apply: Sister Phyllis Brown, S.N.J.M., and Sr. Brown on second reference. For other non-Catholic ministers, use Rev. before their name: Rev. George Stone, and Rev. Stone on second reference.
coach - Capitalize Coach, but not any modifiers, when preceding the person’s name: Coach Mason Bartow, assistant men’s basketball Coach Jake Brown.
comma (in a series) - Use commas to separate elements in a series, but do not put a comma before the conjunction in a simple series: The flag is red, white and blue. He would nominate Tom, Dick or Harry. However, use a comma before the concluding conjunction in a series if an integral element in the series requires a conjunction: I had coffee, juice, and ham and eggs for brunch. Use a comma before the concluding conjunction in a complex series of phrases: The accreditation decision will be based upon whether the program is academically sound, whether it can withstand the scrutiny of the evaluators, and whether a case can be made for its public demand.
committees, task forces - Capitalize names of specific committees and task forces: The Marketing Task Force met yesterday. Lowercase second general reference: The task force selected the guest speakers.
composition titles - Capitalize titles and place quotation marks around them for books, computer games, movies, plays, poems, song titles, radio and TV shows, lectures, speeches and works of art. Exception: the Bible. Do not use quotation marks around the Bible. See publication titles for newspapers and magazines and special printed materials.
courtesy titles - Do not use courtesy titles, i.e. Mr., Mrs., Ms. Only use Dr. when referring to a person with a medical degree.