The Ministry of Economic Development specifies: an opportunity to provide several contracts with one bank guarantee is not provided by the Law N 44-FL. Under each contract it is necessary to provide separate providing.
We will remind that there are two methods to provide performance of the contract. One of them - to deposit money to account, specified by the customer. The second - to provide the bank guarantee issued according to the Law N 44-FL. Such guarantee shall be irrevocable. In it it is necessary to specify liabilities which proper execution is provided.
Document: The letter of the Ministry of Economic Development of the Russian Federation from 4/18/2016 N D28i-1057