Follow Canadian Press style:

  • Omit periods in all-caps abbreviations or acronyms, e.g., COU, MAPS, NSERC, BA, MA, LLD, unless the abbreviation is geographical, such as U.S., P.E.I., B.C., or a single letter, such as E. or p.
  • Use periods in lower-case or mixed abbreviations, such as e.g., i.e., B. Comm., etc. Periods go at the end of abbreviations like B. Comm., B.Sc., Dr., Aug., Wed., but not abbreviations that begin and end with a cap, e.g., PhD, PoW, MiG, U of T, etc. Metric symbols are not abbreviations and are followed by a period only when they are at the end of a sentence, e.g., km-singular and plural. "Ms" as a title of address is not abbreviation for anything, so do not use a period. [Note: CP uses a period.]
  • Put a space between a person's initials when listing the name: vice-president administration Jackson Street
  • Do not abbreviate "professor" even as a title of address; do not call McMaster "Mac" except in the Times; the same is true for the word "grad"-use it in the Times but use "graduate" elsewhere; do not abbreviate March, April, May, June, July (CP); do not abbreviate "department."


Some common academic degree abbreviations and what they mean:


Philosophiae Doctor

Doctor of Philosophy


Legum Doctor

Doctor of Laws


Doctor Litterarum

Doctor of Letters (or Literature)