(a) If a person subject to section 3 of the Act with respect to a fur product finds that a fur product is misbranded he shall correct the label or replace same with a substitute containing the required information.

(b) If a person subject to section 3 of the Act with respect to a fur or fur product finds that the invoice issued to him is false or deceptive, he shall, in connection with any invoice issued by him in relation to such fur or fur product correctly set forth all of the information required by the Act and regulations in relation to such fur or fur product.