§ 3307. Exemption from taxation
(a)
United States, State, or local taxes
The Institute, its property, and its income are exempt from all taxation now or hereafter imposed by the United States (except to the extent that section
3310
(a)(3) of this title requires the imposition of taxes imposed under chapter
21 of title
26, relating to the Federal Insurance Contributions Act) or by any State or local taxing authority of the United States.
(b)
Charitable contributions; transfers for public, charitable, and religious uses; charitable and similar gifts