(1)If OFCOM open an investigation into whether a provider of a regulated service has failed, or is failing, to comply with any requirement mentioned in subsection (2), the provider must co-operate fully with the investigation.
(2)The requirements are—
(a)a requirement imposed by a notice under section 121(1) (notices to deal with terrorism content and CSEA content), and
(b)an enforceable requirement as defined in section 131 (except the requirement in subsection (1) of this section).