In January 2008 the office launched a new survey program designed to efficiently and accurately identify individual properties and potential districts that are eligible for listing in the National Register of Historic Places. The system, based on Microsoft Access, allows surveyors to build on the scholarship of previous professionals and append digital images and maps to the office's growing database of historic properties. Training sessions for the new program will be held bi-monthly as long as the sessions can be filled. The survey system is more fully described in the guidebook entitled "Guidelines for Conducting Historic Resource Surveys in Oregon," which can be downloaded below as an Adobe PDF.