United Kingdom - 2009 Party Finance Law

Part Part 3: Accounting requirements for registered parties
Title Section 49: Division of responsibilities in case of party with accounting units
Section Parties with accounting units
Article

49

Where a registered party is a party with accounting units, sections 41 to 48 have effect in accordance with Schedule 5, which makes provision for securing that-
(a)financial matters relating to the party exclusive of those relating to any accounting unit, and
(b)financial matters relating to any such unit,
are dealt with separately for the purposes of this Part.

Categories - Extra-parliamentary party (Organizational structure)
Source http://www.legislation.gov.uk/ukpga/2000/41