(b) Advocates the adoption or rejection of legislation.
The term legislation, as used in this subdivision, includes action by the Congress, by any State legislature, by any local council or similar governing body, or by the public in a referendum, initiative, constitutional amendment, or similar procedure. An organization will not fail to meet the operational test merely because it advocates, as an insubstantial part of its activities, the adoption or rejection of legislation. An organization for which the expenditure test election of section 501(h) is in effect for a taxable year will not be considered an action organization by reason of this paragraph (c)(3)(ii) for that year if it is not denied exemption from taxation under section 501(a) by reason of section 501(h).