(a) The director of the budget shall have in continuous process and revision a tentative budget for the coming years, in the light of direct studies of the operations, plans and needs of the state agencies and of the existing and prospective sources of revenue. Except as otherwise provided by this section, after summarizing estimates of funds which may be available and the estimated requirements for the several state agencies, the director shall cause them to be reviewed in relation to the general financial condition and needs of the state and shall cause to be made such further inquiries and investigations, and such revision of the tentative budget, as the director may deem necessary.

(b) Not later than November 10 of each year, the director of the budget shall notify each state agency in writing of any revision of the agency’s requests and the agency affected may request a hearing on such revision which request may be filed within 10 days after receipt of notice but, in any case, not later than November 20 of such year. If requested, the secretary of administration shall hold hearings on the tentative budget at which the administrative head of each state agency or the representative of such administrative head shall be entitled to be heard. The hearings provided for in this section shall be concluded not later than December 15 of such year.

(c) The director of the budget shall not revise the budget estimate for the judicial branch of state government that is submitted pursuant to Kan. Stat. Ann. § 20-158, and amendments thereto.