(1)The Commissioners may by regulations make provision for determining by what persons anything required to be done under this Part is to be done where, apart from those regulations, that requirement would fall on—
(a)persons carrying on business in partnership; or
(b)persons carrying on business together as an unincorporated body;
but any regulations under this subsection must be construed subject to the following provisions of this section.
(2)In determining for the purposes of this Part who at any time is the person chargeable with any aggregates levy where the persons responsible for subjecting any aggregate to commercial exploitation are persons carrying on any business—
(a)in partnership, or
(b)as an unincorporated body,
the firm or body shall be treated, for the purposes of that determination (and notwithstanding any changes from time to time in the members of the firm or body), as the same person and as separate from its members.
(3)Without prejudice to section 36 of the Partnership Act 1890 (c. 39) (rights of persons dealing with firm against apparent members of firm), where—
(a)persons have been carrying on in partnership any business in the course or furtherance of which any aggregate has been subjected to commercial exploitation, and
(b)a person ceases to be a member of the firm,
that person shall be regarded for the purposes of this Part (including subsection (7) below) as continuing to be a partner until the date on which the change in the partnership is notified to the Commissioners.
(4)Where a person ceases to be a member of a firm during an accounting period (or is treated as so ceasing by virtue of subsection (3) above) any notice, whether of assessment or otherwise, which—
(a)is served on the firm under or for the purposes of any provision made by or under this Part, and
(b)relates to, or to any matter arising in, that period or any earlier period during the whole or part of which he was a member of the firm,
shall be treated as served also on him.
(5)Without prejudice to section 16 of the Partnership Act 1890 (c. 39) (notice to acting partner to be notice to the firm), any notice, whether of assessment or otherwise, which—
(a)is addressed to a firm by the name in which it is registered, and
(b)is served in accordance with this Part,
shall be treated for the purposes of this Part as served on the firm and, accordingly, where subsection (4) above applies, as served also on the former partner.
(6)Subject to subsection (7) below, nothing in this section shall affect the extent to which, under section 9 of the Partnership Act 1890 (liability of partners for debts of the firm), a partner is liable for aggregates levy owed by the firm.
(7)Where a person is a partner in a firm during part only of an accounting period, his personal liability for aggregates levy incurred by the firm in respect of aggregate subjected to commercial exploitation in that period shall include, but shall not exceed, such proportion of the firm’s liability as may be just and reasonable in the circumstances.