Proper Names

Q. I know that CMOS prefers theater to theatre, but when referring to degrees from the Department of Theatre (the university’s determined spelling), which should I go with?

A. Proper names must not be edited for style or spelling. Just as an editor would not change the spelling of your name, a street name, or the name of a retail product for consistency, the name of a department should not be changed to match a style guide’s preference.