As currency is used and passed along, it sometimes becomes damaged. That damage can range from simple tears and wrinkles on paper currency, to more severe damage like burn marks, water damage, or chemical contamination. Sometimes currency is damaged by rodents, insects, or natural deterioration from burying money in the ground.[1] Most countries have some official procedure in place for replacing damaged or contaminated money, although that procedure may vary depending on the type of currency being replaced.[2] In the United States, the Department of the Treasury is the agency responsible for replacing damaged currency, and this is done as a free service to all lawful holders of currency.[3] If you receive damaged currency, or if your currency becomes damaged, knowing how to have that money replaced can help ensure you do not suffer any losses.