Belgium - 1989 Party Finance Law

Title Article 6
Chapter CHAPTER II The limitation and control of election expenses for parliamentary and provincial elections
Article

6

When they request a list number, political parties shall submit a written undertaking of the obligation to declare their election expenses.
This undertaking is provided on a special form and is to be signed by the applicant.
This form is provided by the Minister of the Interior.

Categories - Party finance (Report and disclosure)
Source http://www.ejustice.just.fgov.be/cgi_wet/wet.pl