The term "liquefied petroleum gas", as used in this chapter, means and includes any material which is composed predominantly of any of the following hydrocarbons, or mixtures of the same: propane, propylene, butane (normal butane or isobutane), and butylenes.
N.D. Cent. Code § 18-09-01
Liquefied petroleum gas defined
Official source: North Dakota Legislative Branch. Reproduced from public-domain North Dakota statutes; confirm against the official source for the current text. Not legal advice.