What standard do the Vehicles and Road Traffic Regulations set for the tyres of a motor vehicle used on a road in Antigua and Barbuda?

1. Tyres need only be inflated; their condition is not regulated
2. Every tyre must be maintained free from any defect that might damage the road surface or endanger people in or on the vehicle or other road users
3. Tyres are checked only when a vehicle is first registered, never afterwards
4. Only the two front tyres are subject to any condition requirement