The role of NFBs is to supplement the mass carriers. The supplementary role of NFBs include:
| (a) | relieving heavy demand on the franchised bus and green minibus services primarily during the peak hours; and |
| (b) | filling gaps of passenger demand which cannot be met viably by the regular public transport services. |
Based on the above criteria, NFBs are to provide tailor-made service to specific groups of passengers. As at 30 September 2008, there were 7,074 registered non-franchised public buses in the territory.
