1. Must hold an extra pair of eyeglasses or contact lenses at the taxi station.
  2. Must ensure that he carries on him a pair of eyeglasses or contact lenses while driving during the night.
  3. Must ensure that he carries on him a pair of eyeglasses or contact lenses while driving during the day.
  4. Must carry with him an extra pair of eyeglasses or contact lenses while driving.