(a) A landowner who elects to designate a representative to vote on behalf of the landowner must register the representative to vote on a form prescribed by the district.
(b) The form must be received by the district on or before the 20th day before the date of the election.

(c) The registration is valid for a period prescribed by the district.
(d) The district shall prepare a list of qualified voters as shown by the district’s records as of the 60th day before the date of a district election. On or before the 40th day before the date of an election, the district shall:
(1) file the list with the county clerk of each county within which the district’s boundaries are located;
(2) post the list in the district’s office; and
(3) post the list at each county courthouse in each county within which the district’s boundaries are located.
(e) Only an individual landowner or a registered representative of a landowner whose name appears on the list of qualified voters is eligible to vote in a district election.