Unrelated use
(3) Unrelated use(i) In general. The term unrelated use means a use which is unrelated to the purpose or function constituting the basis of the charitable organization's exemption under section 501 or, in the case of a contribution of property to a governmental unit, the use of such property by such unit for other than exclusively public purposes. For example, if a painting contributed to an educational institution is used by that organization for educational purposes by being placed in its library for display and study by art students, the use is not an unrelated use; but if the painting is sold and the proceeds used by the organization for educational purposes, the use of the property is an unrelated use. If furnishings contributed to a charitable organization are used by it in its offices and buildings in the course of carrying out its functions, the use of the property is not an unrelated use. If a set or collection of items of tangible personal property is contributed to a charitable organization or governmental unit, the use of the set or collection is not an unrelated use if the donee sells or otherwise disposes of only an insubstantial portion of the set or collection. The use by a trust of tangible personal property contributed to it for the benefit of a charitable organization is an unrelated use if the use by the trust is one which would have been unrelated if made by the charitable organization. (ii) Proof of use. For purposes of applying subparagraph (2)(ii) of this paragraph, a taxpayer who makes a charitable contribution of tangible personal property to or for the use of a charitable organization or governmental unit may treat such property as not being put to an unrelated use by the donee if: