The south coast district board may adopt a fee schedule for the approval of plans for the control of emissions of air contaminants, if the plans are required by a district rule or regulation, to cover the costs of review, planning, inspection, and monitoring related thereto. To the extent that provisions of the plans are enforceable against the person required to submit the plan, an annual fee may be charged to cover the costs of annual review, inspection, and monitoring related thereto. Every person required to submit a plan, including, notwithstanding Section 6103 of the Government Code, a person that is a publicly owned public utility, shall pay the fees required by the schedule. The fees may not exceed the estimated reasonable cost of planning, monitoring, and enforcing the plans for which the fee is charged. A noticed public workshop shall be held at least 30 days prior to any meeting of the south coast district board at which the levying or revision of the fees is scheduled for hearing. Supporting data on the actual or estimated costs required to provide the service for which the fee is charged shall be made available at the workshop.