Okla. Stat. tit. 62, § 62-42.13: Revenues not derived from legislative appropriations

All departments, institutions, or agencies of the state which

are operating either partially or entirely from revenues derived

from sources other than legislative appropriations, shall file

requests for allotments under the same provisions herein stated as

are required for direct legislative appropriations which distinctly

specify the amount appropriated. The Budget Director shall approve

such requests for allotments on a line item basis, if the estimated

revenues accruing to such fund are sufficient to finance such

allotments within the period for which the items are approved, and

if the account classification is sufficient to show the purposes for

which the money is to be expended, except that obligations as they

are incurred may not exceed the unencumbered balance of surplus cash

on hand in accordance with Section 23, Article 10, Constitution of

the State of Oklahoma. The Budget Director may require a more

detailed breakdown of accounts before he approves such requests if

the request fails to show sufficient information for the Division of

Central Accounting and Reporting. This section shall apply to such

spending agencies as the State Highway Department, Fish and Game

Department, Oklahoma Employment Security Commission and other

spending agencies operating under similar financial arrangements,

including federal funds received by any spending agency of the

state, but shall not apply to donated funds, trust funds or funds of

an agency relationship.