On February 5th 2009, the board of the Housing Financing Fund (HFF) agreed to begin an analysis regarding the establishment of a new HFF-bond series with a longer duration than the current outstanding bonds. A new series would support the Fund´s expected future cash flows. Currently, the maximum loan period of HFF´s general mortgages is 40 years but may be extended out to 70 years, provided certain conditions are met. For rental housing loans, the maximum loan period is 50 years. In recent years rental housing loans have increased as a proportion of all new loans granted by the Fund. HFF's cash flows will remain supported via continued issuance through its current bond series, i.e. HFF150914, HFF150224, HFF150434 and HFF150644. After September 15th, 2009, HFF will not be able to increase the HFF150914 series, since inflation-indexed mortgage bonds with a duration shorter than 5 years may not be issued.