1. The Central Election Commission shall calculate the sum of the votes cast for the federal lists of candidates admitted to the distribution of mandates in accordance with the rules provided by parts 7 - 9 of Article 88 of this Federal Law. This sum of votes is divided by 225 - the number of mandates to be distributed in the federal electoral district. The result is the first electoral quotient, which shall be used in the distribution of mandates between the federal lists of candidates.

2. The number of votes received by each federal list of candidates admitted to the distribution of deputy mandates shall be divided by the first electoral quotient provided by part 1 of this Article. The whole part of the result of this division is the number of mandates allocated to the respective federal list of candidates as a result of initial distribution of deputy mandates.

3. If after the initial distribution of mandates carried out in accordance with part 2 of this Article, there remain unallocated mandates, the second distribution shall be made. Unallocated deputy mandates shall be allocated by one to the federal lists of candidates, which have the largest remainder fraction resulting from the division made according to part 2 of this Article. In case of equal fractions (after the decimal point to the sixth digit inclusive), preference shall be given to the federal list of candidates that received the greater number of votes.

4. After the distribution of mandates according to Ppart 3 of this Article, they shall be initially distributed within each federal list of candidates among the regional groups of candidates and the federal part of the federal list of candidates (if any). Firstly, mandates shall be given to the registered candidates on the federal part of the federal list of candidates, in their order on that part of the list.

5. If, after giving mandates to the registered candidates in the federal part of the federal list of candidates, there remain mandates due to that federal list of candidates, these mandates shall be distributed within the list among the regional groups of candidates in the following order. The sum of the votes cast for the federal list of candidates in those subjects of the Russian Federation, groups of subjects of the Russian Federation, parts of territories of subjects of the Russian Federation, which correspond to the regional groups of candidates of the federal list of candidates, shall be divided by the number of mandates remaining unallocated within the list. The result is the second electoral quotient of this federal list of candidates. The number of votes cast for each of the regional groups of candidates shall be divided by the second electoral quotient. The whole part of the result of this division is the number of mandates distributed to the corresponding regional group of candidates. If after these actions there remain undistributed mandates due to this federal list of candidates, they shall be distributed by one to the regional groups of candidates, which have the largest remainder fraction resulting from dividing the number of votes cast for each of the regional groups of candidates by the second electoral quotient of this federal list of candidates. In case of equal fractions, preference shall be given to the regional group of candidates, which received the greater number of votes. If in case of equality of votes cast for the regional group of candidates, the number of such groups is greater than the number of seats, the regional group of candidates to receive the mandate shall be determined according to the order of the regional groups in the federal list of candidates.

6. If in the process of distribution of mandates within the federal list of candidates one or more regional group of candidates does not have the required number of registered candidates, the remaining undistributed mandates shall be further distributed among the regional groups of the same federal list of candidates, which have registered candidates who did not receive mandates. If, by the time of additional distribution of mandates, there are regional groups of candidates which did not receive seats in the process of distribution by remainder in accordance with part 5 of this Article, and there are groups among them which have registered candidates who did not receive mandates, then mandates shall be distributed by one to each of these regional groups of candidates. This shall be done preserving the order for the distribution of mandates (in accordance with the values of the remainders) determined on the basis of the initially calculated second electoral quotient. If, during the additional distribution of mandates after exhausting the regional groups of candidates who did not receive mandates through distribution in accordance with the values of the remainders, there remain undistributed mandates, these mandates shall be distributed by one to the regional groups of candidates, which have the lowest additional distribution ratio, calculated for each of the regional groups of candidates with registered candidates who did not receive seats. This ratio shall be calculated by dividing the number of mandates obtained by the regional group of candidates by the number of votes cast for it. If this ratio is equal, the mandate shall be given to the regional group of candidates that received the greater number of votes. If, after such distribution, the number of additionally distributed mandates is greater than the number of regional groups of candidates which may receive them, the procedure of additional distribution shall be repeated the necessary number of times, with the said ratio calculated anew each time. Additional distribution of mandates shall also be made in other cases stipulated by this Federal Law.

7. If, after the distribution of mandates between the federal lists of candidates conducted in accordance with parts 1 - 3 of this Article, it shall be necessary to additionally allocate one or more mandate between all federal lists of candidates, or between some of them, this allocation shall be done as follows. Firstly, mandates shall be allocated to the federal lists of candidates which have not received mandates during their distribution in accordance with the values of the remainder as provided for by part 3 of this Article, and then the allocation of mandates shall be carried out in accordance with the additional distribution ratio for each federal list of candidates, calculated by dividing the total number of mandates obtained by the respective federal list of candidates by the number of votes cast for that list. The mandates shall be allocated by one to the federal lists of candidates, which have the lowest ratio. If the ratios are equal, the mandate shall be allocated to the federal list of candidates that received the greater number of votes. If, after such distribution, the number of additionally distributed mandates is greater than the number of federal lists of candidates which may receive them, the procedure of additional distribution shall be repeated the necessary number of times, with the said ratio calculated anew each time. The mandates allocated to the federal list of candidates shall be given to the registered candidates in the federal part of the list who did not receive mandates, and if there are none –to the registered candidates in the regional groups of candidates of this list, according to the method of additional distribution of mandates provided by part 6 of this Article. Additional distribution of mandates shall be made only to the federal lists of candidates that have registered candidates who did not receive mandates.

8. If, after the initial distribution of mandates within the federal list of candidates, a mandate becomes vacant, it shall be given to the registered candidate from the same federal list of candidates. The mandate shall be given to the first registered candidate from among the registered candidates who did not receive mandates in the same regional group of candidates (federal part of the federal list of candidates) than the registered candidate whose mandate became vacant. If in the respective regional group of candidates (federal part of the federal list of candidates) there are no registered candidates who did not receive mandates, the vacant mandate shall be allocated among the other regional groups of candidates of the same federal list of candidates in accordance with the method of additional distribution of mandates provided for in part 6 of this Article.

9. If in the process of distribution of mandates within the federal list of candidates there will be no registered candidates who did not receive mandates, the remaining undistributed mandates shall remain vacant until the next elections to the State Duma, except for the case provided by part 10 of this Article.

10. If after the implementation of provisions specified in part 9 of this Article, the State Duma is lacking the legal quorum, the unallocated mandates shall be given to the federal lists of candidates not admitted to the distribution of seats in accordance with the requirements of parts 7 - 9 of Article 88 of this Federal Law, which received the number of votes greater than the first electoral quotient. In this case each of these federal lists of candidates shall be entitled to receive mandates not exceeding the number of mandates that it could receive if it were admitted to the distribution of mandates together with the federal list of candidates mentioned in parts 7 - 9 of Article 88 of this Federal Law. These mandates shall be distributed between the federal lists of candidates not admitted to the distribution of mandates in accordance with the requirements stipulated in parts 7 - 9 of Article 88 of this Federal Law, which received the number of votes greater than the first electoral quotient, proportionally to their number of votes according to the method of distribution of seats provided for in this Article.