10. (1) The Minister may access the National Register of Individual Health Identifiers for—

(a) a relevant purpose, or

(b) the purpose of performing a function conferred on him or her by this Act or another enactment.

(2) (a) Subject to paragraph (b), a specified person may access the National Register of Individual Health Identifiers for a relevant purpose.

(b) Subject to section 3(6) and (8), a specified person who falls within a class of specified persons prescribed for the purposes of this paragraph (which may be all specified persons) shall not, pursuant to paragraph (a), access the National Register of Individual Health Identifiers in so far as the Register contains any relevant information (individuals) that falls within a class of relevant information (individuals) prescribed for the purposes of this paragraph as a class of relevant information (individuals) which may not be so accessed by that class of specified persons.

(3) An equivalent person may access the National Register of Individual Health Identifiers in accordance with an agreement made under section 12.

(4) For the purposes of this section, the Minister shall put in place measures, or cause to be put in place measures—

(a) to enable the National Register of Individual Health Identifiers to be accessed in accordance with subsection (1), (2) or (3), and

(b) to assist in ensuring that the National Register of Individual Health Identifiers—

(i) is not accessed otherwise than in accordance with subsection (1), (2) or (3), and

(ii) is not accessible by any person other than the Minister accessing the Register in accordance with subsection (1), a specified person accessing the Register in accordance with subsection (2) or an equivalent person accessing the Register in accordance with subsection (3).