08/06/2008: "AP Stylebook Just Updated"
An AP Stylebook Online entry has been updated.
Editor's Note: Nine states - those abbreviated with two capital letters - will now be written in AP headlines without periods. This is a space-saving measure. (Within story texts, the periods will be retained for those nine states when abbreviated. Other states will also retain periods in both headlines and texts.)
Only the first word and proper nouns are capitalized.
Follow story style in spelling, but use numerals for all numbers and single quotes for quotation marks. Exception: use US, UK and UN (no periods) in all headlines.
For U.S. states in headlines, no periods for those abbreviated with two capital letters: NY, NJ, NH, NM, NC, SC, ND, SD and RI. Other states retain periods: Ga., Ky., Mont., Conn.
Online: For online subscribers so desiring, AP systems convert headlines to a version with all words capitalized.