Del. Code Ann. tit. 16, § 7902
Principles applicable throughout State
47 Del. Laws, c. 184, § 30; 16 Del. C. 1953, § 7902;
All plumbing installed after June 4, 1949, in any part of the State shall conform to the basic plumbing principles provided in this chapter.
47 Del. Laws, c. 184, § 30; 16 Del. C. 1953, § 7902