(a) Except as provided by Subsections (b), (c), (d), (e), and (f) of this section, a license required or authorized by this subchapter is valid only during the yearly period for which it is issued without regard to the date on which the license is acquired. Each yearly period begins on September 1 or another date set by the commission and extends through August 31 of the next year or another date set by the commission. The commission by rule may set the amount of a license fee for a license issued during a transition period at an amount lower than prescribed in this section and provide for a license term for a transition period that is shorter or longer than a year.
(b) A license issued under Section 46.005 or 46.0051 of this code is valid for the number of consecutive days authorized and does not necessarily expire on August 31 or another date set by the commission.

(c) A tag or duplicate tag required or authorized by this subchapter is valid for a period as established by the commission.
(d) A license issued under Section 46.004 of this code that is issued before September 1 or another date set by the commission and does not expire until August 31 of the following year or another date set by the commission is valid from the date of issuance through August 31 of the following year or another date set by the commission.
(e) A lifetime resident fishing license is valid for the lifetime of the license holder.
(f) A duplicate license is valid for the period of validity of the original license only.