The Corporation for Supportive Housing has published "Housing Credit Policies in 2009 that Promote Permanent Supportive Housing". The report provides a synopsis of 2009 Low Income Housing Tax Credit Qualified Allocation Plans (QAP) and describes the strategies used in different states to support the creation of supportive housing within the QAP – such as scoring incentives, set-asides and the use of thresholds. Tax credits have been an important source of capital financing for permanent supportive housing projects (PSH) for some time and the report describes how an increasing number of Housing Credit Agencies are also now using them to promote a diverse array of supportive housing models. These models range from projects with 100% of units dedicated for PSH, to projects with only a small proportion of units (10%) dedicated for supportive housing.