(a) Amounts.--

(1) The guarantor whose name appears on the label of a fertilizer distributed in this Commonwealth shall pay semiannually and not later than January 31 and July 31 of each year an inspection fee at the rate of 15¢ per ton. In no case shall the inspection fee paid semiannually amount to less than $25.

(2) On packages of 15 pounds or less, there shall be paid in lieu of the inspection fee of 15¢ per ton provided for in paragraph (1), annually and not later than January 31 of each year, an inspection fee of $25 for each brand and grade of fertilizer distributed.

(3) If the guarantor whose name appears on the label distributes fertilizers in this Commonwealth in both packages of less and more than 15 pounds, the $25 inspection fee shall be paid for its brands and grades sold in packages of 15 pounds or less, and the 15¢ per ton fee shall be paid for its packages of more than 15 pounds.

(b) Adjustment to fees by secretary.--

(1) Notwithstanding the provisions of subsection (a), if the secretary determines following notice to the registrants and licensees that moneys derived from the registration and inspection fees are either greater or less than that required to administer this chapter, the secretary may reduce or increase the inspection fee so as to maintain revenues sufficient to administer this chapter.

(2) An inspection fee established under this subsection may not be changed by more than 2¢ in one year and may not exceed 25¢ per ton.

(3) The secretary shall announce the adjustment of fees by publishing a notice in the Pennsylvania Bulletin. The adjusted fees shall take effect 60 days after publication of such notice in the Pennsylvania Bulletin.