(a) Within 30 days of the receipt of a complete petition for a declaratory ruling, pursuant to section 619.1(a)(1) of this Part and within 60 days of the receipt of a complete petition for a declaratory ruling pursuant to section 619.1(a)(2) of this Part, the general counsel shall issue and mail to the petitioner either a ruling or, where any of the grounds set forth in section 619.3 of this Part exist, a written notification that a ruling shall not be issued and a statement of the reasons therefor. All rulings shall be filed in the Office of General Counsel and shall be available to the public pursuant to the provisions of Part 616 of this Title, Access to Records.

(b) Rulings will be made on the facts alleged in the petition and those facts will be assumed to be true. The department also may take official notice of a fact not subject to reasonable dispute if it is either generally known or can be accurately and readily verified.