- (a) Commercial grade propane shall be branded and designated as "propane," and commercial grade butane shall be branded and designated as "butane."
- (b) Mixtures of butane and propane shall be branded and designated as "butane‑propane mixtures."
History Note: Authority G.S. 119‑26;
Eff. December 1, 1981;
Pursuant to G.S. 150B-21.3A, rule is necessary without substantive public interest Eff. September 19, 2015.