(a) Not later than April 30 of each year, commencing in 2012, the department shall notify each carpet stewardship organization that has submitted a carpet stewardship plan which the department has approved the amount of the annual fee described in Public Resources Code Section 42977, subdivision (a). The fee shall reflect the department's actual annual costs to administer and enforce this chapter for the period from May 1 of the prior year through April 30 of the current year. For payments due in 2012, 2013 and 2014, the fee shall also reflect the department's actual annual costs to develop these regulations and the carpet stewardship program. The department's costs shall include the cost of staff, overhead expenses applicable to staff, contract services and any other expenses incurred in administering or enforcing the program and in developing these regulations and the program.

(b) If the department approves or conditionally approves, more than one stewardship plan for a fiscal year, the fee shall be prorated equally among the carpet stewardship organizations submitting approved or conditionally approved stewardship plans.

(c) The department will issue invoices to each carpet stewardship organization to which this section applies by May 31 of each year. Payment is due annually on July 1.

(d) The department's approval of a stewardship plan shall be revoked if payment is not received by July 1. Plans revoked for lack of payment may be reinstituted upon payment.