(1) The commissioner of correction may designate the judicial district or districts from which each regional workhouse may accept commitments.
(2) The commissioner may further determine the number of inmates each institution may adequately house and may prorate the number among those judicial districts served by the institution. This prorated number shall be the maximum number of inmates committed from a given judicial district who may, without the commissioner's express approval, be housed in the institution at any one (1) time.