- the volume of its production (works, an usla in value terms more than 50 percent of total amount of production (works make, an usla of all economic entities located in the territory of this municipality.
And can be also included in structure of a city-forming complex: scientific organizations; higher educational institutions; industrial enterprises; objects of innovative infrastructure; small enterprises. Objects of social infrastructure and ensuring activity of municipality are not a part of a city-forming complex.
There the only enterprise provides workplaces, social infrastructure. Once it stops - and life of all settlement failed. Plus it is impossible to leave anywhere to look for other workplace because to the next, say, large settlement - 60, 100, 150 kilometers.