A procurement may not be artificially divided in order to use the small procurement method instead of the other procurement methods set forth in COMAR 21.05.01 or a lesser category defined under Regulation .04 of this chapter. A procurement contract of more than $100,000 may not be awarded under the authority of this chapter unless: The unit obtains prior approval of the agency head or designee, and, if not a department, the appropriate control authority; The Department of General Services or Department of Transportation procures construction valued at $200,000 or less; or The Department of Natural Resources procures capital projects of maintenance valued at $200,000 or less.