A Notice to Prior Secured Party of Purchase Money Security Interest is a form of legal notification that is sent to a prior secured party in order to inform them that the borrower has received a new purchase money security interest. This notice serves as a way of informing the prior secured party that their interest is no longer valid, and that the new security interest takes precedence over their interest. There are two main types of Notice to Prior Secured Party of Purchase Money Security Interest: one that is sent when a debtor has obtained a new loan to purchase a new item, and another that is sent when a debtor has refinanced an existing loan. In both cases, the prior secured party is required to receive this notice in order to ensure that their rights are protected.