Transfer of documents of title enables interstate sale during movement with prescribed certificate and seller's tax declaration. Form E-II requires the seller transferring documents of title during interstate movement to record buyer and transport particulars, invoice and declaration form 'C' details, and to certify registration, that the seller purchased the documents under a prior Form E-I/E-II and effected a subsequent sale by transfer, and to declare whether tax has been or will be paid by the seller or preceding transferors or that no tax was payable due to specified exemptions.