Por. Bor. Tor 6 is evidence by the issuance of a tax number for the purpose of paying tax for using the benefit of the land. Such land has not yet been assessed as to the person’s right to possess such land. In the event that there is not title for the land, then it may be land in a conserved forest, public land or land which existed under Sor. Kor 1, Nor. Sor 3, Nor. Sor. 3 Gor or a title deed. Any of these titles must have a Por. Bor. Tor 6 as tax must be paid, the same as any land without a title. Purchase of such land is possible by handing over the possession of the land to the buyer along with the tax nuber. The right to the land under Por. Bor. Tor 6 can not be used as evidence in any dispute with authorities.