Estonia - 1992 Constitution

Title Article 30
Chapter 2 - Fundamental Rights, Liberties and Duties
Article

30

(2) The law may restrict the right of some categories of civil servants to engage in commercial activities and to form profit-making associations (Article 31), as well as the right to join political parties and some other non-profit associations (Article 48).

Categories - Extra-parliamentary party (Members' compatibility)
- Secondary legislation (Secondary legislation)
Source Gisbert H. Flanz ed. 2004. Constitutions of the Countries of the World. Dobbs Ferry, New York: Oceana Publications.