(a) In each even-numbered year, the secretary of state shall prepare information on the territorial composition of each district for which an officer of the state government is regularly elected at the general election for state and county officers.
(b) The information must include the data necessary to enable an early voting clerk to determine the district offices on which a voter under this chapter is eligible to vote.
(c) The secretary shall deliver the information to each county clerk before the 20th day before general primary election day.