On this issue the large number of labours is written at different times. Among them, unfortunately, it is impossible to select one is two classic work, becomings the background of subsequent development of science. Therefore numerous literary variations on the set theme form the fuzzy set of determinations, lists and descriptions of conformities to law, principles and factors.

Formulations of conformities to law of placing, looked after or desired tendencies and to intercommunication in placing of productive forces, are conditioned the system of socio-economic relations, stage of economic development, scientific and technical progress, requirements of economic rationality. In accordance with the paradigm of traditional soviet political economy of conformity to law are specifications, special cases or consequences of objective economic laws.

To the number major conformities to law, for example, take: 1) rational, most effective placing of production; 2) complex development of economy of economic districts, all subjects of Federation; 3) rational territorial division of labor between regions and within the limits of their territories; 4) smoothing of levels of economic and social development of regions. From point of strategy of placing of productive forces the indicated conformities to law are normative requirements or desired tendencies which in actual fact can be not realized (for example, smoothing of levels of development). Other known lists of conformities to law include the concentration of production, liquidation of opposition between a city and the country, more even placing of production and population et cetera

Some of the formulated conformities to law idealize the contradictory processes of evolution of placing of productive forces; in more modern literature they are already interpreted as conformities to law. From a theoretical point sights are vulnerable even the not so much separate formulated conformities to law, how many their combination, which in accordance with requirements to the theory must be uncontradictory and to form the integral systems logically.

Principles, placing of productive forces, formulated in works of domestic, specify, complement and partly duplicate conformities to law. To most often urgent principles behave: approaching of production to the sources of raw material, fuels, to energy and places of consumption of the prepared products; even placing of production on territory of country; specialization of economy of separate regions with the purpose of the maximal use of effect of territorial division of labor; complex development of economy of regions; strengthening of of country. The adopted principles are a set of requirements or desirable results, which must be taken into account or aim to arrive at at planning placing of enterprises, development of regions, at development of general chart of placing of productive forces.

Every principle has rational sense individually, however on the whole they are incompatible. For example, only in the rarest cases it is possible to place a production near-by and from the source of raw material, and from an energy source, and from the place of consumption of the prepared products. Further specialization of production strengthens the unevenness of his placing on territory. Strengthening of requires, as a rule, such, placing of production which deviates from the sources of raw material and places of consumption of products. To become the instruments of making of the planned decisions, principles, similarly as well as conformities to law, must purchase more concrete, expression. In addition, joint application of row of principles rules must be set.