(a) The application fee for a permit or renewal under this article shall not exceed two hundred fifty dollars ($250).
(b) The fee for an onsite inspection shall not exceed three hundred fifty dollars ($350).
(c) It is the intent of the Legislature that fees established pursuant to this section be equivalent to administration and enforcement costs incurred by the board in carrying out this article.
(d) At the discretion of the board, the fee for onsite inspection may be collected and retained by a contractor engaged pursuant to subdivision (b) of Section 1646.4.