Pub. L. 94-141, tit. V, sec. 502
transfer of appropriation authorization
transfer of appropriation authorization Sec. 502. In addition to the amount authorized under section 101(a), 201(a), 301(a), or 501(b) of this Act, any unappropriated portion of the amount authorized under any such section is authorized for appropriation under any other such section, provided the amount authorized under such section is not increased by more than 10 per centum.