Fortunately, kayaking on the White River in Arkansas doesn't require a license. While some states may require a license, you do not need one to paddle on the White. As it is a flatwater river, you do need to know that there are a few rules. All vessels must be marked by red and green lights, as well as a lantern with a white light shining. You must also have a 0.02% BAL level, which is higher than the legal limit.