These are Preservation, Rehabilitation, Restoration and Reconstruction. The ten standards for Rehabilitation must be applied to specific rehabilitation projects in a reasonable manner, taking into consideration economic and technical feasibility. To be eligible for Federal tax incentives, a rehabilitation project must meet all ten standards. The application of these standards to rehabilitation projects is to be the same as under the previous version so that a project previously acceptable would continue to be acceptable under these Standards. A. Protect and Maintain 1.
Protection involves the least degree of intervention and is preparatory to other work.
B. Repair 1. Only appropriate when the physical condition of character defining materials and features warrant additional work. Should begin with least degree of intervention possible. Same material is preferred, but substitute is acceptable if the form, design and material convey the visual appearance of the feature and finish. C. Replace 1. replace an entire character defining feature with new material.