Which gas typically requires a special license for commercial use?

LPG, or Liquefied Petroleum Gas, typically requires a special license for commercial use because it is classified as a flammable liquid and presents significant safety considerations. The handling, storage, and transportation of LPG involve strict regulations to prevent accidents such as gas leaks and explosions. This fuel is commonly used in commercial settings for heating, cooking, and powering equipment, necessitating trained personnel to ensure compliance with safety standards and regulations.

In contrast, natural gas is widely available for commercial use and generally does not require the same level of regulation regarding personal licensing, though there are relevant safety practices in place. Carbon dioxide, while it can pose risks such as asphyxiation in concentrated forms, is often regulated differently, primarily concerning specific industrial applications. Nitrogen, an inert gas, typically does not require special licensing for commercial use as its hazards are significantly lower compared to LPG. These distinctions emphasize the need for special licensing with LPG to ensure safety in its use and management.