How long after a change is made in the size of certain parts in the drive system, should the taxi meter be calibrated?

1. Correct answer: Within forty eight hours.
2. Twenty four hours only.
3. Not more than half a year before the date of the periodic adjustment of the meter.
4. One week from the date in which the repair was finished.

WhyAfter changing the size of tires or drive parts that affect the count, the taxi meter must be recalibrated within 48 hours. Otherwise it counts wrong, and the passenger overpays or underpays.