Del. Code Ann. tit. 30, § 5118
The Department of Transportation may prescribe reasonable rules and regulations for the carrying out of this chapter and all forms of reports required by this chapter.
30 Del. C. 1953, § 5118; 54 Del. Laws, c. 107; 57 Del. Laws, c. 741, §§ 24B, 24C; 59 Del. Laws, c. 216, § 2; 68 Del. Laws, c. 290, § 184