Referendum campaigns may be funded from voluntary contributions by natural and legal persons (Article 19.3). The draft law establishes the limit for each contribution by natural persons (500 times the minimum salary, Article 20.2) and by political parties, NGOs or alliances of political parties (25,000 times the minimum salary, Article 20.1), as well as a total limit for contributions to the campaign fund (100,000 times the minimum salary, Article 20.1). Consideration could be given to replacing the latter limit with a limit on campaign spending, applicable to each registered campaign fund. It is difficult to see from Article 19 whether other legal persons than those enumerated above are entitled to finance the campaigns. If this is the case, their contributions should be submitted to the same limits. This should be clarified.