The best advice we can give you is, when you are in doubt about some stylistic question, check the latest issue of the journal you wish to publish in. Although most of the AIP-owned journals follow the same style rules, there are some society-owned journals whose style differs slightly (or somewhat greatly!) from the AIP style. Therefore, the final word may be found in the journal itself.
However, if you still have a question even after consulting the journal, you should contact the editorial office or AIP. Although the AIP Compuscript Liaison may be able to help you with these queries, you might want to consult with the Chief Production Editor in charge of the journal. A list of phone numbers and e-mail addresses may be found on the AIP homepage (see Sec. iiiA).