(a) Annual filing fees shall be based on the regulations in effect at the time of filing. Annual filing fees for the report for the prior water year are due and payable on April 1, or thirty days after the Board issues an invoice, whichever is later.

(b) The Board may waive requirements under this article for any person or class of extractor if the waiver is determined by the board to advance implementation of Part 2.74 of Division 6 of the Water Code. Any person subject to this article may request a waiver, provided that the person is in compliance with the groundwater extraction reporting requirements described in Water Code section 5202, subdivision (a) and is a low-income resident or a public water system serving a disadvantaged community where the primary purpose of providing water is for human consumption, cooking and sanitary purposes.

(c) For purposes of this section, a low-income resident is: (1) someone whose household income is 200 percent or less of the federal poverty level (for one-person households, program eligibility shall be based on two-person household guideline levels) or (2) someone who is enrolled in a qualified public assistance program.

(d) For purposes of this section, a public water system has the same meaning as defined in Health and Safety Code section 116275, subdivision (h).

(e) For purposes of this section, a disadvantaged community has the same meaning as defined in California Code of Regulations, title 22, section 64300, subdivision (a).

(f) Any waiver request must be submitted to the Board within 30 days of when the fee is due pursuant to subdivision (a) of this section for the waiver to apply to that billing and must be supported by adequate substantiation of eligibility for the annual fee waiver. For any waiver request supported by adequate substantiation of eligibility that is submitted to the Board more than 30 days after the fee is due pursuant to subdivision (a) of this section, the reduction shall take effect in the subsequent fiscal year.