Which one of the following statements is NOT true?

All individuals conducting activities involving chemicals are
      required to participate in appropriate training.
Excess chemicals are very expensive to dispose of and can
      cause a hazard if stored too long.
Secondary containment of chemicals is required only when
      transporting bottles of chemicals between buildings.
Most chemical waste is considered hazardous and must be
      disposed of according to the Hazardous Waste Management Plan. All of the above are true.