Charioteering

A character with proficiency in this skill is able to safely guide a chariot, over any type of terrain that can normally be negotiated, at a rate 1/3 faster than the normal movement rate for a chariot driven by a character without this proficiency. Note that this proficiency does not impart the ability to move a chariot over terrain that it cannot traverse; even the best charioteer in the world cannot take such a vehicle into the mountains.