Cal. Health and Safety Code § 41512

(a) The state board or a district board may adopt, by regulation, after a public hearing, a schedule of fees not exceeding the estimated cost of planning, preliminary evaluation, sampling, sample analysis, calculations, and report preparation with respect to samples of emissions secured from air pollution emission sources. However, such fees may be imposed or assessed only when such samples are required to determine compliance with permit conditions or with any state or local law, order, rule, or regulation relating to air pollution. Such fees shall not include charges for the reasonable time exclusively spent by the owner or operator of the source constructing testing facilities or preparing for such testing. The failure to pay any such fee in a timely manner shall constitute grounds for the revocation or suspension, and may be made a condition for the issuance, of any permit. Any such revocation or suspension shall be in accordance with the procedures set forth in Sections 42304 to 42309, inclusive. (b) Nothing contained in this part shall be construed to include or restrict the use of construction equipment such as portable sandblasting equipment or portable spraying or spray painting equipment, or any similar equipment, used on a temporary basis in connection with new construction, or on maintenance or repairs of existing structures, machinery, or equipment; provided, such equipment is operated in accordance with the requirements of this division and applicable district and state board rules and regulations. (c) Where testing to demonstrate compliance with permit conditions or with any state or local law, order, rule, or regulation relating to air pollution is required by the state board, the state board, not later than April 1, 1981, shall establish procedures under which the operator may request that such testing be performed by an independent testing service. The state board may, for good cause, reject such a request.