Okla. Stat. tit. 45, § 45-745.10

A. 1. During the term of the permit the permittee may submit

an application for a revision of the permit, together with a revised

reclamation plan, to the Department. The Department shall

promulgate by rule a definition of a major revision and a minor

revision. The fees for an application for a revision shall be:

Said fee shall be owing and due upon the Department's completion of

action upon the application and said fee shall be paid in full prior

to the issuance of any revised permit and the Department shall issue

said revised permit no later than five (5) days after payment. The

fees collected under this section shall be deposited in the

Department of Mines Revolving Fund.

2. An application for a revision of a permit shall not be

approved unless the Department finds that reclamation as required by

this act can be accomplished under the revised reclamation plan. The

revision shall be approved or disapproved within a reasonable period

of time. The Department shall establish guidelines for a

determination of the scale or extent of a revision request for which

all permit application information requirements and procedures,

including notice and hearings, shall apply. Any revisions which

propose significant alterations in the reclamation plan shall, at a

minimum, be subject to notice and hearing requirements.

3. Any extensions to the area covered by the permit except

incidental boundary revisions shall be made by application for

another permit.

B. The Department shall, within a time limit prescribed in

regulations, review outstanding permits and may require reasonable

revision or modification of the permit provisions during the term of

such permit. Such revision or modification shall be based upon a

written finding and subject to notice and hearing requirements

established by the Department.

Oklahoma Statutes - Title 45. Mines and Mining Page 80