When Is An Apostrophe Appropriate With the Abbreviation CPA? Inquiring Minds Want to Know!

"The most common grammatical error I have found in articles, announcements and emails these past eight years – the misuse of an apostrophe in the abbreviation CPA. So many people, CPAs and non-CPAs alike, love to put that little piece of punctuation before the “s” more than they should.

Now, I’m not saying an apostrophe is never used with the CPA abbreviation, but I think it may be time to set the record straight on when it should be used. Here are some examples to illustrate proper usage..."
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Source: GSCPA House of Blogs