; or (B) for any upstream provider to grant access to an index of web pages on the internet under a search syndication contract that does not comply with the requirements of paragraph (3). (2) Opaque algorithm requirements (A) In general The requirements of this paragraph with respect to a person that operates a covered internet platform that uses an opaque algorithm are the following: (i) The person provides notice to users of the platform— (I) that the platform uses an opaque algorithm that uses user-specific data to select the content the user sees. Such notice shall be presented in a clear, conspicuous manner on the platform whenever the user interacts with an opaque algorithm for the first time, and may be a one-time notice that can be dismissed by the user; and (II) in the terms and conditions of the covered internet platform, in a clear, accessible, and easily comprehensible manner to be updated no less frequently than once every 6 months— (aa) the most salient features, inputs, and parameters used by the algorithm; (bb) how any user-specific data used by the algorithm is collected or inferred about a user of the platform, and the categories of such data; (cc) any options that the covered internet platform makes available for a user of the platform to opt out or exercise options under clause (ii), modify the profile of the user or to influence the features, inputs, or parameters used by the algorithm