; and (ii) does not require the disclosure of the source code of a large communications platform. (5) Notice of changes A large communications platform provider shall provide reasonable advance notice to a competing communications provider, which may be provided through public notice, of any change to an interoperability interface maintained by the large communications platform provider that will affect the interoperability of a competing communications service. (6) Non-commercialization by a large communications platform provider A large communications platform provider may not collect, use, or share user data obtained from a competing communications service through the interoperability interface except for the purposes of safeguarding the privacy and security of such information or maintaining interoperability of services. (d) Non-Commercialization by a competing communications provider A competing communications provider that accesses an interoperability interface may not collect, use, or share user data obtained from a large communications platform provider through the interoperability interface except for the purposes of safeguarding the privacy and security of such information or maintaining interoperability of services. (e) Exemption for certain services The obligations under this section shall not apply to a product or service by which a large communications platform provider does not generate any income or other compensation, directly or indirectly, from collecting, using, or sharing user data. 5. Delegatability (a) General duty of large communications platform providers A large communications platform provider shall maintain a set of transparent third-party-accessible interfaces by which a user may delegate a custodial third-party agent to manage the user’s online interactions, content, and account settings on a large communications platform on the same terms as a user. (b) Authentication Not later than 180 days after the date of enactment of this Act, the Commission shall establish rules and procedures