(a) A ballot voted under this subchapter may be returned to the early voting clerk by mail, common or contract carrier, or courier.
(b) A ballot voted by a voter described by Section 101.001(2)(A), (B), or (B-1) shall be counted if the ballot arrives at the address on the carrier envelope not later than the sixth day after the date of the election, except that if that date falls on a Saturday, Sunday, or legal state or national holiday, then the deadline is extended to the next regular business day.