83 Ill. Adm. Code 520.30
"Natural Gas System"
Section 520
Section 520.30 "Natural
Gas System"
"Natural Gas System"
means transmission or distribution facilities that transport natural gas as
defined in Sections 1-3 of the Illinois Gas Pipeline Safety Act (Ill. Rev.
Stat. 1981, ch. 111⅔, pars. 551-553).