§ 3187.3 Definition of a museum.
For the purpose of this part:
(a) Museum means a public, tribal, or private nonprofit institution which is organized on a permanent basis for essentially educational, cultural heritage, or aesthetic purposes and which, using a professional staff:
(1) Owns or uses tangible objects, either animate or inanimate;
(2) Cares for these objects; and
(3) Exhibits them to the general public on a regular basis.
(i) An institution that exhibits objects to the general public for at least 120 days a year shall be deemed to meet this requirement.
(ii) An institution that exhibits objects by appointment may meet this requirement if it can establish, in light of the facts under all the relevant circumstances, that this method of exhibition does not unreasonably restrict the accessibility of the institution's exhibits to the general public.