# The Restriction on Conduct (Specialist Advertising Services) Order 1988, Article 4


(1) It shall be unlawful for any specialist publisher—
(a) to discriminate in the manner specified in paragraph (2) of this article in the prices charged for specialist advertising services between persons who give orders to place advertisements; or
(b) to do the thing specified in paragraph (3) of this article being a thing which appears to the Secretary of State to amount to discrimination in the prices charged for such services.
(2) The manner referred to in paragraph (1)(a) of this article is by treating a person who gives an order to place a price-bearing advertisement, as regards prices charged, in a manner significantly less favourable than he normally treats persons who give orders to place other advertisements in similar circumstances.
(3) The thing referred to in paragraph (1)(b) of this article is treating a person who gives an order to place a price-bearing advertisement, as regards terms or conditions as to credit or discount, in a manner significantly less favourable than he normally treats persons who give orders to place other advertisements in similar circumstances.

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Source: https://www.legislation.gov.uk/uksi/1988/1017/article/4 (the official version)
Page: https://openlegislation.uk/restriction-on-conduct-specialist-advertising-services-order-1988/article-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.