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Version 1.1.2 - July, 2008
Abbreviations
Academic degrees
Although Chicago no longer uses periods in abbreviations of academic degrees, we recommend the traditional:
- A.B., M.B.A., M.A.L.S., M.D., B.F.A., J.D., Ph.D., LL.B., LL.D., M.D.-Ph.D.
- Plurals
M.A.s, Ph.D.s
Set off with commas when used in writing:
- John Jones, M.D., went to New York.
Dr.
Only use the title Dr. when referring to a medical doctor.
Class years
When abbreviating years to two digits, put an apostrophe (’) in front of the years of classes. Note also how to denote multiple institutional affiliation with class year.
- Class of '05
- John Smith '05
When referring to classes in the 20th century, or when confusion about which century is referred to, use all four digits.
For clarity, use the colloquial name of each graduate school and avoid use of abbreviations for Tuck and Thayer schools :.
- John Smith, '05, Tuck School '06, Thayer School '07, DMS '08, A&S Grad '09
For internal audiences, in VOX and Dartmouth Life, some single-letter prefixes may be added to class year: A (adopted), P (parent), S (spouse), W (widow/widower.)
- President James Wright '64A; Mr. & Mrs. John Plummer '09P
Time and Date
a.m., p.m., noon, midnight
Days of the week are capitalized and are not abbreviated unless used in tabular form. When they are abbreviated, the preferred form is Mon, Tue, Wed, Thu, Fri, Sat, and Sun.
In all applications, the Associated Press guidelines will be followed with regard to abbbreviation of months. When a month is used with a specific date, the month will be abbreviated, with the exception of the
months of March, April, May, June, and July. Example: Oct. 7; but March 15. Spell out the month when using alone or with a year alone.
A.D. and B.C. (set in small caps where possible) are most commonly used. In contexts where these are inappropriate, use C.E. (for Common Era, which is the nonreligious notation) and B.C.E (for Before the Common Era).
Geography
U.S. (when an adjective; noun is United States) Other countries may be abbreviated on second reference as United Kingdom (U.K.), United Nations (U.N.), etc.
State names in running text without a town are spelled out. When a town is included, abbreviate using state names and not two-digit postal abbreviations, which are only for addresses and tabular information. See 15.29 of Chicago Manual of Style (CMS) or "state names" section of AP for complete list. The following states are never abbreviated in running text: Alaska, Hawaii, Idaho, Iowa, Maine, Texas, and Utah.
- Jack lives in Hanover, N.H.
- Dartmouth College
- Hanover, NH 03755
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