You need an authorisation number from Tehran, not strictly an LOI, but similar, it takes about 2 weeks to be granted. As for the alternative to a carnet, apparently there is an alternative, but details are sketchy at best and with the Turkmen deadline waiting at the other end, I chose the carnet route.
Light travels faster than sound. You seemed bright until you spoke.
You need an authorisation number from Tehran, not strictly an LOI, but similar, it takes about 2 weeks to be granted. As for the alternative to a carnet, apparently there is an alternative, but details are sketchy at best and with the Turkmen deadline waiting at the other end, I chose the carnet route.
Light travels faster than sound.
You seemed bright until you spoke.