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pa r 443 <br /> 11 <br /> EXHIBIT B <br /> SECRETARY OF THE INTERIOR'S STANDARDS <br /> FOR REHABILITATION <br /> (as of March, 1990) <br /> The Standards that follow were originally published in 1977 and <br /> revised in 1990 as part of Department of the Interior regulations <br /> • (36 CFR Part 67, Historic Preservation Certifications) . They <br /> pertain to historic buildings of all materials, construction <br /> types, sizes, and occupancy and encompass the exterior and the <br /> interior of historic buildings. The Standards also encompass <br /> . related landscape features and the building's site and <br /> environment as well as attached, adjacent or related new <br /> construction. <br /> The Standards are to be applied to specific rehabilitation <br /> projects in a reasonable manner, taking into consideration <br /> economic and technical feasibility. <br /> 1. A property shall be used for its historic purpose or be <br /> placed in a new use that requires minimal change to the defining <br /> characteristics of the building and its site and environment. <br /> 2. The historic character of a property shall be retained and <br /> preserved. The removal of historic materials or alteration of <br /> features and spaces that characterize a property shall be <br /> avoided. <br /> 3. Each property shall be recognized as a physical record of its <br /> time, place, and use. Changes that create a false sense of <br /> historical development, such as adding conjectural features or <br /> architectural elements from other buildings, shall not be <br /> undertaken. <br /> 4. Most properties change over time; those changes that have <br /> acquired historic significance in their own rights shall be <br /> retained and preserved. <br /> 5. Distinctive features, finishes, and construction techniques <br /> or examples of craftsmanship that characterize a property shall <br /> be preserved. <br /> • 6. Deteriorated historic features shall be repaired rather than <br /> replaced. Where the severity of deterioration requires <br /> replacement of a distinctive feature, the new feature shall match <br /> the old in design, color, texture, and other visual qualities <br /> and, where possible, materials. Replacement of missing features <br /> stall be substantiated by documentary, physical, or pictorial <br /> 7. Chemical or physical treatments, such as sand-blasting, that <br /> cause damage to historic materials shall not be used. The <br /> surface cleaning of structures, if appropriate, shall be <br /> undertaken using the gentlest means possible. <br /> 8. Significant archeological resources affected by a project <br /> shall be protected and preserved. If such resources must be <br /> disturbed, mitigation measures shall be undertaken. <br /> 9. New additions, exterior alterations, or related new <br /> construction shall not destroy historic materials that <br /> characterize the property. The new work shall be differentiated <br /> from the old and shall be compatible with the massing, size, <br /> scale, and architectural features to protect the historic <br /> integrity of the property and its environment. <br /> 10. New additions and adjacent or related new construction shall <br /> be undertaken in such a manner that if removed in the future, the <br /> essential form and integrity of the historic property and its <br /> environment would be unimpaired. <br />