“(1) The trustee must, as soon as practicable after receiving a notice under section 44B, notify iwi aquaculture organisations (in accordance with subsection (2) or (3), as the case may require) that it has received the notice.
“(2) If the notice received by the trustee relates to a regional coastline or harbour in respect of which the trustee has not made its determination as to settlement assets allocation entitlements under the Maori Commercial Aquaculture Claims Settlement Act 2004, then, in the notice given under subsection (1), the trustee must undertake to negotiate, on behalf of the iwi aquaculture organisations for all the iwi in relation to the regional coastline or harbour to which the space referred to in section 44A(1) belongs, an agreement (subject to their subsequent approval) with the other persons specified in section 44B(2) on the 20% of the space referred to in section 44A(1) in respect of which authorisations are to be issued to the trustee.
“(3) If the notice received by the trustee relates to a regional coastline or harbour in respect of which the trustee has made its determination as to settlement assets allocation entitlements under the Maori Commercial Aquaculture Claims Settlement Act 2004, then, in the notice given under subsection (1), the trustee must seek instructions from all the iwi aquaculture organisations with an interest in the authorisations in accordance with the determination of settlement assets allocation entitlements as to whether—