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 or isobutane and butylene. The term "liquefied natural gas", as used in this chapter, means a fluid in the liquid state composed predominantly of methane and which may contain minor quantities of ethane, propane, nitrogen or other components normally found in natural gas.
Conn. Gen. Stat. § 29-330
(1955, S. 1999d; P.A. 79-512, S. 5, 13; P.A. 09-177, S. 13; P.A. 10-54, S. 6.)