Section 23
SEC. 23. Notice to Person Furnishing Repairs, Supplies, and Necessaries—The officers and agents of a vessel specified in Section 22 of this Decree shall be taken to include such officers and agents when appointed by a charterer, by an owner pro hac vice, or by an agreed purchaser in possession of the vessel; but nothing in this Decree shall be construed to confer a lien when the furnisher knew, or by exercise of reasonable diligence could have ascertained, that because of the terms of a charter party, agreement for sale of the vessel, or for any other reason, the person ordering the repairs, supplies, or other necessaries was without authority to bind the vessel therefor.