"This topical report addresses the characteristics of vacant residential building fires reported to the National Fire Incident Reporting System (NFIRS) from 2006 to 2008. Vacant residential building fires, as analyzed in this report, include properties where the building is under construction, under major renovation, vacant and secured, vacant and unsecured, and being demolished. The remaining building status categories (occupied and operating; idle, not routinely used; building status, other; and undetermined) are considered 'nonvacant' but not necessarily occupied. For the purpose of this report, the terms 'residential fires' and 'vacant residential fires' are synonymous with 'residential building fires' and 'vacant residential building fires,' respectively. 'Vacant residential fires' is used through-out the body of this report; the findings, tables, charts, headings, and footnotes reflect the full category, 'vacant residential building fires.'"
U.S. Fire Administration: http://www.usfa.dhs.gov/
Topical Fire Report Series (August 2010), v.11 no.3