Except as provided in Section 404, every public utility subject to Section 431 shall make payment of the required fee in accordance with the following schedule:

1. (a) Every public utility with annual gross intrastate revenues of seven hundred fifty thousand dollars ($750,000) or less shall make payment of the fee to the commission on an annual basis on or before January 15.
2. (b) Every other public utility not subject to subdivision (a) shall make payment of the fee to the commission on a quarterly basis between the first and 15th days of July, October, January, and April.