ABBREVIATIONS

Use abbreviations only in situations where they enhance comprehension, that is, when repeatedly referring to a lengthy name or term that has a commonly accepted abbreviation.

In General

— Use acronym after the first mention

— As long as the spelled-out name is somewhere on the page

— No periods, no parenthesis (US, not U.S.)

— Only use periods if acronym can be confused with another word (c.o.d.)

Preferred Style of Common Abbreviations

— a.m., p.m., etc., i.e., e.g., vs.

— Do not use etc. after using e.g. and vice versa

— e.g., i.e., etc.:

— e.g., for example

— i.e., specifically or that is

— etc., and so on

Title and English Honorific (salutation, appellation, courtesy title)

— Use a period for these abbreviations (Dr., Mr., Mrs., Ms.)