When the need for day training and habilitation services in a county has been determined under section 252.28, the board of commissioners for that county shall:
(1) authorize the delivery of services according to the individual service and habilitation plans required as part of the county's provision of case management services under Minnesota Rules, parts 9525.0015 to 9525.0165. For calendar years for which section 252.46, subdivisions 2 to 10, apply, the county board shall not authorize a change in service days from the number of days authorized for the previous calendar year unless there is documentation for the change in the individual service plan. An increase in service days must also be supported by documentation that the goals and objectives assigned to the vendor cannot be met more economically and effectively by other available community services and that without the additional days of service the individual service plan could not be implemented in a manner consistent with the service principles in section 252.42;
(2) ensure that transportation is provided or arranged by the vendor in the most efficient and reasonable way possible; and
(3) monitor and evaluate the cost and effectiveness of the services.