Tribes with treaty or other reserved rights related to special forest products retain their ability to harvest special forest products in full accordance with existing rights. However, consistent with all applicable rights, Regional Foresters may set conditions on Tribes with treaty or other reserved rights related to special forest products to protect the sustainability of special forest products or to otherwise protect National Forest System land. Regional Foresters may only prohibit Tribes with treaty or other reserved rights related to special forest products from harvesting a special forest product to protect public health and safety or to ensure sustainable harvest levels. Regional Foresters will provide a Tribe with treaty or other reserved rights related to special forest products that is prohibited from harvesting a special forest product with written documentation supporting the decision.