RB so, INC. Is a supporting organization under section 509(a)(3) of the internal revenue code (IRC) to the american civil liberties union foundation, INC. ("ACLU foundation" EIN: 13-6213516), a new YORK not-for-profit corporation that is exempt from federal income TAX under IRC section 501(c)(3) and is classified as a publicly supported organization under IRC section 509(a)(1). The organization's exempt purpose is to support and benefit the ACLU foundation and to assist the ACLU foundation's preservation and promotion of civil rights and liberties.