36 C.F.R. § 1256.34 How long may access to some donated historical materials be denied?
Title 36 - Parks, Forests, and Public Property
Some donated historical materials are closed for long periods, either under the provisions of the deed of gift, our general restrictions described in subpart D of this part, or another governing authority. We are sometimes able to make a copy of materials with restricted information redacted.
Title 36: Parks, Forests, and Public Property
PART 1256—ACCESS TO RECORDS AND DONATED HISTORICAL MATERIALS
Subpart C—Access to Donated Historical Materials
§ 1256.34 How long may access to some donated historical materials be denied?

