13-3102. Misconduct involving weapons; defenses; classification; definitions
A. A person commits misconduct involving weapons by knowingly:
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2. Carrying a deadly weapon except a pocket knife concealed on his person or concealed within his immediate control in or on a means of transportation if the person is under twenty-one years of age;...
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B. Subsection A, paragraph 2 of this section shall not apply to:
1. A person in his dwelling, on his business premises or on real property owned or leased by that person or that person's parent, grandparent or legal guardian.
2. A member of the sheriff's volunteer posse or reserve organization who has received and passed firearms training that is approved by the Arizona peace officer standards and training board and who is authorized by the sheriff to carry a concealed weapon pursuant to section 11-441.
3. A firearm that is carried in:
(a) A manner where any portion of the firearm or holster in which the firearm is carried is visible.
(b) A holster that is wholly or partially visible.
(c) A scabbard or case designed for carrying weapons that is wholly or partially visible.
(d) Luggage.
(e) A case, holster, scabbard, pack or luggage that is carried within a means of transportation or within a storage compartment, map pocket, trunk or glove compartment of a means of transportation.
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In other words, your wife may open carry in public, but may not carry concealed unless she does so in the few listed exceptions above. Hope that helps.
For more information on AZ carry laws, check out Arizona Revised Statues at
www.azleg.gov.