Natural gas is stored in LNG tanks by cooling to the ultra-low-temperature of -162 °C to liquefy into LNG (liquefied natural gas).
The vaporizer is a plant that returns the LNG to natural gas.

Natural gas is colorless and odorless. An odorant is added to help detect gas leaks.
The odorant may be a mixture containing gases such as cyclohexene (C₆H₁₀), tertiary butyl mercaptan (TBM) (C₄H₁₀S), and dimethyl sulfide (DMS) (C₂H₆S).

Space is provided around underground high pressure gas pipes and conduits to facilitate maintenance, repairs, and inspections.

A boring bar is drilled into the surface of a road or other surface to inspect for the presence of town gas underground and to check for gas leaks from corroded or cracked underground gas pipes.

Town gas within facilities is purged to ensure safe working environments before performing tasks related to inspections, cleaning, or removal at gas installations.

Work to install or remove gas equipment (gas pipes, gas meters, and gas cocks) from the gas consumer’s property (e.g., house, store, factory).