In material of a general nature containing isolated references to percentages, the term is usually written out, except when used adjectivally: See 5.11 Money and 5.26 Other considerations for further information on monetary units.
Always spell out the names of the months in the body of your text and in footnotes.
Many abbreviations will not be understood unless the term is written in full at first mention, with the abbreviation given in parentheses.
Follow these general rules: In recent years there has been a trend toward the omission of periods in abbreviations.
See Department of Canadian Heritage, when used with personal names.
The use of abbreviations has gained greater acceptance as an increasing number of new products and organizations are identified by shorter and more easily recognizable word forms.
In addition to abbreviations in the strict sense (including the short forms of common nouns, Latin expressions and titles), this chapter contains information and recommendations regarding acronyms, initialisms, and symbols such as those for metric units, which are uniform in many languages.
Do not use periods or spacing between the letters of an acronym or initialism.
In general, acronyms are not preceded by the definite article: ) to use before acronyms and initialisms is determined by the consonant or vowel sound of the initial syllable, letter or number.