(as defined by Arizona Stature) .means any method, arrangement or procedure for the voluntary exchange among timeshare interval owners of the right to use and occupy accommodations and facilities in a timeshare project. Exchange program does not include an assignment of the right to use and occupy accommodations and facilities to purchasers or owners pursuant to a multi-site project reservation system.. The exchange programs are most successful for those flexible in their vacation planning. Restricting demand to a specific date/week or resort may reduce the chances of obtaining an exact request.