Part 4 s 66 (c) Privacy Act 2020 Version as at 6 December 2023 the processing of the request raises issues of such complexity that a response to the request cannot reasonably be given within the original time limit. (2) Any extension under subsection (1) must be for a reasonable period of time, having regard to the circumstances. (3) The extension is effected by giving notice of the extension to the requestor within 20 working days after the day on which the request is received. (4) The notice effecting the extension must— (a) specify the period of the extension; and (b) give the reasons for the extension; and (c) state that the requestor has the right to make a complaint to the Commis‐ sioner about the extension; and (d) contain any other information that may be necessary. Compare: 1993 No 28 s 41 Subpart 3—Charges 66 Charges (1) In relation to an IPP 6 request,— (2) (3) 52 (a) a public sector agency may, if authorised under section 67, impose a charge for making information available in compliance, in whole or in part, with the request: (b) a private sector agency may, subject to the provisions of any applicable code of practice, impose a charge for— (i) providing assistance under section 42, but only if the agency makes information available in compliance, in whole or in part, with the request: (ii) making information available in compliance, in whole or in part, with the request. In relation to a correction request,— (a) a public sector agency may, if authorised under section 67, impose a charge for attaching a statement of correction to personal information: (b) a private sector agency may, subject to the provisions of any applicable code of practice, impose a charge for— (i) providing assistance under section 61: (ii) attaching a statement of correction to personal information. Except as provided in subsections (1) and (2), no public sector agency or pri‐ vate sector agency may impose any charge in relation to an IPP 6 request or a correction request.