11. For the purposes of paragraphs 2 and 3 of Part 1 of this Schedule—
(a)if the person to whom the certificate relates is not registered with the DBS update service, a certificate is only valid if—
(i)it has been issued in response to an application by the service provider in accordance with regulation 28(3) or (6), or 36(3) or (6), and
(ii)no more than three years have elapsed since the certificate was issued;
(b)if the person to whom the certificate relates is registered with the DBS update service, the certificate is valid regardless of when it was issued.