United Kingdom - 2000 Party Finance Law

Part Part II Registration of political parties
Title Section 33: Party ceasing to be registered
Section Registration
Article

33

(1)Once a party is registered its entry may only be removed from the register in accordance with subsection (2).
(2)Where-
(a)a party applies to have its entry removed from the register, and
(b)the application includes a declaration on behalf of the party that it does not intend to have any candidates at any relevant election,
the Commission shall remove the party's entry from the register.
(3)On the removal of the party's entry from the register the party shall cease to be a registered party.
(4)However, until the end of the financial year of the party which follows that in which its entry is removed from the register-
(a)the Commission shall, when considering applications made by other parties under this Part, treat the entry as if it were still contained in the register, and
(b)the requirements of Parts III to V shall continue to apply to the party as if it were still registered.
(5)Part IV of Schedule 4 applies to applications under this section.

Categories - Extra-parliamentary party (Cease of existence)
Source http://legislation.data.gov.uk/ukpga/2000/41/enacted/data.htm?wrap=true