B.14. Names of Certain Countries, States, Provinces, Territories, Etc. (Appendix B: Abbreviations)

Use the abbreviation of state names recommended by the U.S. Postal Service only if they appear in the item along with the place that is being given in the publication, distribution, etc., area. Transcribe the U.S. Postal Service abbreviations as they appear whether in caps, in upper- and lowercase, with or without periods (i.e., Ca., Ca, CA., CA). In all other cases (e.g., when supplying the name of the state or abbreviating it when the full form appears), use the abbreviations for state names given in appendix B.14A.

Virgin Islands:

Use the abbreviation "V.I." for "British Virgin Islands" and for "Virgin Islands of the United States."

See also:

Appendix B: Abbreviations