Services to Children have asked libraries to reconsider policies that keep low-income teens away for fear of fines. Many libraries also offer alternatives and amnesties in order to encourage patrons to return overdue books. "Food for Fines" programs, in which borrowers donate canned food in exchange for fine forgiveness, are common in libraries all over the world. Some libraries offer children and teens the option to "read down" their fines by reducing fines based on the amount of time spent reading or the number of books read. Other libraries may block access to library privileges until materials are returned. Librarians have had a longstanding debate over whether or not to charge late fines. The American Library Association’s Policy 61 entitled, “Library Services to the Poor,” highlights the removal of all barriers to library and information services, particularly fees and overdue charges”. Other researchers have argued for waiving fees if it is a barrier for continued use of the library. It is imperative that the library staff understands the financial situation of the patrons it serves. This barrier to use—the fines that low-income people cannot afford—is an underlying problem that needs to be addressed. Gehner (2010) proposes that libraries work with the community to find out their need and to build relationships. He also found that overdue fines could be a limiting factor, too. Since libraries face limited funding, fees and fines represent both a source of revenue and a barrier to use. Enforcement Some libraries have stepped up enforcement and collection of late fees. People who do not return library property after an extended period of time may face arrest or a negative action on their credit reports in some jurisdictions. Patrons have been arrested for not returning library books in Colorado, Washington state, Iowa, Wisconsin and Texas. Punitive measures such as these are typically used to recover stolen library property, not to enforce late fees. In some institutions, patrons are responsible for paying the cost of replacing lost items. Postage A special use of the term "late fee" is postal surcharge once required by post offices to expedite delivery of a letter posted later than the normal pick-up time. For example, in 1856, a letter could be included in the night's mail for an extra pence if by 6:45 p.m. at the local office, for a tuppence by 7:15 p.m. at the Chief or District office, or for four