Luxembourg has become the first country in the world to offer free public transport.
Parliament in that country has passed the rule to help less-well-off workers and reduce road traffic.
Some cities in the world have similar measures. But the transport ministry said it was the first time such a decision covered an entire country.
The free transport will benefit 40 percent of households and is estimated to save each one around 100 euros ($150 NZD) per year.
Not all passengers were aware of the change, which was brought forward one day ahead of schedule.
Do you think we should have free public transport in New Zealand? What could be some benefits, and what could be negatives?