In this division—
"acknowledgement of sex application" , for a child, means—
(a) an application under section 40 to alter the record of sex of the child; or
(b) an application under section 51 for a recognised details certificate for the child.
(a) an application under section 40 to alter the record of sex of the child and an application under section 42 to register a change of the child’s first name; or
(b) an application under section 51 for a recognised details certificate for the child and an application under section 53 to register a change of the child’s first name.