Do you need to add the s to an acronym that has no singular form? Specifically, the Federal Motor Carrier Safety Regulations (FMCSR).

  • 3
    Doesn't the usage shown in any examples you find (and some should be given) give guidance? – Edwin Ashworth Mar 9 '18 at 15:34
  • I have seen it used both ways. I was told initially that I should not use an s as there is no singular form, but I cannot find that this is a legitimate formatting rule or guidance. – Consulting Mar 9 '18 at 15:48
  • The way an abbreviation is used is not dependent solely, or even primarily, on its long form. Whether you render it as a plural or not is largely a question of style, and as such, you should adhere to the discipline of your editor, publication, or organization, or in the absence of a house style, adopt a style manual appropriate to your tastes and audience and be consistent in its application. – choster Mar 9 '18 at 17:01
  • I'd try to find how the FMCSA use it. It seems they invented it. – Edwin Ashworth Mar 9 '18 at 20:03

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