.There aren’t rules just for making wood furniture, unless you are in the TCD (Thousand Canker Disease) quarantine. Live edge walnut species must be debarked and kiln dried to be included in finished wood. If it air dried, it still must be debarked and the bark managed by burial or burning. The furniture would also need to have some finishing application of poly, finishing wax, etc.

 With what Cliff describes, he will be fine. Finished furniture is not considered to be a regulated article. If he wants to bring in walnut from an infested state, he would need to contact me for information and permit.

 While there are no regs specifically, we always recommend to use kiln dried materials.