As used in NRS 590.465 to 590.645, inclusive, unless the context or subject matter otherwise requires:
1. “Board” means the Board for the Regulation of Liquefied Petroleum Gas.
2. “Liquefied petroleum gas,” “LPG” or “LP-Gas” means any material which is composed predominantly of any of the following hydrocarbons, or mixtures of propane, propylene, butanes, either normal butane or isobutane, and butylenes.