Del. Code tit. 30 § 2036
The Department is responsible for reviewing and approving any public or private traffic mitigation plan or program including, but not limited to, clean air compliance programs, Travelink programs, commuter benefit programs, Department-approved incentives contained in any zoning, subdivision or any other land use or development project designed to enhance traffic mitigations, programs approved by county or local government, and any and all other public or private plans designed either in whole or in part to reduce traffic through the use of incentives or disincentives such as, but not limited to, parking charges, parking preferences and financial penalties proposed by employers for single occupant vehicles commuting to the work site.
30 Del. C. § 2036