(1) Changes in the workable program of a grantee during the grant period which would not substantially affect the workable program, nor increase the total cost to the state, and which are for the purpose of improving the operation and performance of the workable plan, may be made: Provided, That written approval in advance is obtained from the department.

(2) Changes in the workable program of a grantee during the grant period which would significantly alter the workable program shall not be made until the grantee has submitted to, and the department has approved, an amendment to the original application.

(3) Application for supplemental state and federal financial aid may be made by the grantee when notice is given by the department that such supplemental funds have become available. The application shall be made as an amendment to the previously approved workable program of the grantee and shall include proposed additions in or improvements to the workable program and proposed changes in the budget including the additional local funds to be provided. The department may approve additional financial aid to the extent such funds become available having considered the needs of all grantees throughout the state.