The MOT Act also notes that these functions cover all forms of transport whether by land, sea or air. The transport specific functions of the MWTI are legislated under the:
- Ministry of Works Act 2002
- Land Transport Authority Act 2007
- Civil Aviation Act 1998
- Shipping Act 1998
- Samoa’s International Obligations: International Civil Aviation Organisation (ICAD) and International Maritime Organisation (IMO) Conventions, and other Bilateral and Multilateral Agreements