Pub. L. 86-682, tit. 39, pt. IV, ch. 63, sec. 4355
Conditions for entry of publications of certain organizations
§ 4355. Conditions for entry of publications of certain organizations (a) Mailable periodical publications meeting the first three conditions of section 4354(a) of this title are entitled to be entered and mailed as second class mail when they do not contain advertising other than that of the publisher and if they are— (1) published by a regularly incorporated institution of learning; or (2) published by a regularly established State institution of learning supported in whole or in part by public taxation; or (8) a bulletin issued by a State board of health; or (9) a bulletin issued by a State conservation or fish and game agency or department; or (10) a bulletin issued by a State board or department of public charities and corrections; or (11) published by or under the auspices of a benevolent or fraternal society or order organized under the lodge system and having a bona fide membership of not less than 1,000 persons; or (12) published by or under the auspices of a trades union; or (13) published by a strictly professional, literary, historical, or scientific society; or (14) published by a church or church organization. (b) A publication containing advertising or persons other than the publisher but otherwise qualifying under items (6) through (9) of subsection (a) of this section is entitled to be entered and mailed as second class mail if— (1) the publication is not designed or published primarily for advertising purposes; (2) the publication is originated and published to further the objects and purposes of the publisher; (3) the circulation is limited to copies sent to members who pay either as a part of their dues or assessments, or otherwise, not less than 50 per centum of the regular subscription price; to other actual subscribers; to exchanges; and 10 per centum of the circulation as sample copies. Individual subscriptions or receipts are not required when members pay for publications, to which this subsection applies, as a part of their dues or assessments.