Any person may apply for certification.
An application for certification—
If the application is made ... and the applicant is a person from a country outside the United Kingdom or a person controlled by a person from a country outside the United Kingdom, the Authority must, as soon as is reasonably practicable after receiving the application—
The Authority may ask an applicant for certification for any further information the Authority thinks is relevant to the application, and the applicant must supply that information if—
The Authority may ask a relevant producer or supplier for any information the Authority thinks is relevant to an application for certification, and the relevant producer or supplier must supply that information if—
A person required to supply information under subsection (4) or (5) must do so by any deadline specified by the Authority.