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The library’s Conservation Laboratory is one of the largest facilities of its kind in the world. It uses a full range of traditional methods of conservation and binding as well as newer technologies to preserve its collections. These measures include maintaining materials in the proper environment, preparing for emergencies such as fires, ensuring the proper care and handling of the collections, and stabilizing fragile and rare materials by placing them in acid-free containers to protect them from deterioration. Because of the scope and variety of the work carried out in its facilities, the library established a National Preservation Program Office in 1984 to share the results of its research and to promote preservation activity in the United States and abroad.