(a) The District Department of Transportation may issue permits authorizing the transportation of materials listed in § 8-1423 upon a demonstration that there is no practical alternative route. A permit may require adoption of safety measures, including time-of-day restrictions.(b) The District Department of Transportation may collect fees for the permits in accordance with the rules issued under § 8-1426.(c) Permit fees collected pursuant to this section shall not exceed the cost of implementing and enforcing this subchapter.Apr. 4, 2006, D.C. Law 16-80, § 5, 53 DCR 1047.