Usage Dictionary

terminal punctuation with abbreviations

A period at the end of a sentence that already ends in an abbreviation.

If a sentence ends with an abbreviation that already takes a period, do not add a second period: She works for Hertz Inc. A question mark or an exclamation point still follows: She works for Hertz Inc.?

Examples

UseFile it with Hertz Inc.

AvoidFile it with Hertz Inc..