restoration.” Stabilization treatments aim to maintain photographs in their current condition, minimizing further deterioration, while restoration treatments aim to return photographs to their original state. Conservation treatments range from very simple tear repairs or flattening to more complex treatments such as stain removal. Treatments vary widely depending on the type of photograph and its intended use. Therefore, conservators must by knowledgeable regarding both of these issues. Guides for the preservation of personal and family photograph collections, such as Cornell University's Preserving Your Family Photographs and the AIC's Caring for Your Treasures, recommend that people contact a trained conservator if they have rapidly deteriorating negatives or photographs with active mold growth, staining from pressure sensitive tape, severe tears, adhesion to enclosures, and other types of damage requiring conservation treatment. Professional organizations There are a number of international organizations concerned with conservation of photographs along with other subjects, including the International Council on Archives (ICA), the International Institute for Conservation of Historic and Artistic Works (IIC), and the International Council of Museums - Committee for Conservation (ICOM-CC). The Photographic Records Working Group is a specialty group within the ICOM-CC. In the United States, the national membership organization of conservation professionals is the American Institute for Conservation of Historic and Artistic works(AIC) to which the Photographic Materials Group (PMG) belongs. The Northeast Document Conservation Center (NEDCC) and the Conservation Center for Art and Historic Artifacts (CCAHA) also play an important role in the field of conservation. The Image Permanence Institute (IPI) at Rochester Institute of Technology is one of the leaders in preservation research of images in particular. Codes and standards Photograph conservators and preservation managers are guided in their work by codes of ethics and technical standards. The International Council on Archives publishes a Code of Ethics and Guidelines for Practice. Additionally, members of other professions (such as archivists and librarians) who deal with preservation of photographs do so in accordance with their professional organization’s codes of ethics. For example, the Society of American Archivists Code of Ethics states that "Archivists protect all documentary materials for which they are responsible and guard them against defacement, physical damage, deterioration, and theft." The International Organization for Standardization (ISO) and American National Standards Institute (ANSI) both publish technical standards that govern the materials and procedures used in photograph preservation and conservation. The International Federation of Library Associations and Institutions has published a list of ANSI