Travellers must ensure that they have the necessary visas. Driving into Thailand From a Neighbouring Country A valid International Driver's Permit and passport in addition to vehicle registration documents are required in order to cross into Thailand. An assurance of guarantee is written into the custom's form which has to be completed and signed at the border post. Permission may be granted for a maximum six-month period from the date of entry. These are in Thai and English and posted to the left-hand side of the carriageway.
Signs conform to international standards with only a few exceptions.
The major international oil companies have service stations throughout Thailand. Service stations very rarely have maintenance garages attached to their premises, but can change tyres or oil if required. In reading an address, the number following the street name is a 'soi' number. A 'soi' is a small side-street or alley. In an address, the first numbers usually indicate a building, followed by a street name and then a 'soi' number.