Being a part of the economic legislation, investment legislation includes administrative regulation that deals with the mode of investors’ activities, as well as rules of contractual (civil) law, including laws on lease-purchase contracts, concessionary agreements and production sharing agreements. We can acknowledge that investment legislation is an integrated branch of legislation consisting of rules of private and public law. It embraces practically all branches of the national economy and it is its distinctive feature. Antimonopoly regulation plays a special role in investment regulation. In search of criteria uniting regulatory acts adopted with the aim of legal regulation of investment relations, it is necessary to refer to the Federal Law “On Protection of Competition”. Antimonopoly law is a strategic factor that can unite regulatory acts in the investment sphere into a single system of investment legislation. Transfer to the program planning criteria and interaction between the state and the private sectors, and raising funds from private investors is one the ways to minimize costs on the Programs execution. The following modes, among others, can be used as mode of interaction with private investors: concessionary agreements, project co-financing by commercial banks (credit organizations), placement of public (municipal) bonds, investment projects.