In late 2015 a couple were refused entry into Costa Rica with a RHD, prior to this vehicles entered with out problems read more here:
Since then Costa Rica has communicated that RHD vehicles are illegal on Costa Rican roads, and that any insurance purchased will be invalid. This is due to a technicality in local laws.
Further to this customs at the border have been instructed not to allow RHD vehicles to enter.
Costa Rica Update June 2016: Legal Response from the British Embassy
The British embassy has been working with the Costa Rican authorities and have stated that Costa Rica plans to implement new rules to allow RHD vehicles in to the country legally.
No time frame has been provided for the implementation.
Since then Costa Rica has communicated that RHD vehicles are illegal on Costa Rican roads, and that any insurance purchased will be invalid. This is due to a technicality in local laws.
Further to this customs at the border have been instructed not to allow RHD vehicles to enter.
Costa Rica Update June 2016: Legal Response from the British Embassy
The British embassy has been working with the Costa Rican authorities and have stated that Costa Rica plans to implement new rules to allow RHD vehicles in to the country legally.
No time frame has been provided for the implementation.