This Consumer Handbook on Adjustable Rate Mortgages, also known as the CHARM Booklet is used to explain the adjustable rate mortgages (ARMS) and provide an overview of verious types of ARMs, in addition it lists resources to obtain more information.

This updated version has removed references to certain fees and product types that are no longer permitted, such as prepayment penalties on adjustable-rate mortgages and has added information about the lender's obligation to consider the borrower's ability to repay the loan, provide disclosure on interest rate adjustments, and ensure a borrower has received homeownership counseling before making a negative amortization loan; and added CFPB conntact information and resources for consumers and updates to federal agency contact information. It also adds CFPB resources for consumers including information about how consumers cansubmit a coplaint to the bureau, a link to the Bureau's online "Ask CFPB" tool to find answers to questions about mortgages and other financial topics.