Subject to this subpart and the instructions of the Director, the Area Director of each Classing Office shall be responsible for the proper performance of the duties imposed on such office and on the persons connected therewith. The Area Director shall be responsible for receiving all correspondence relating to the classification of cotton under the act and for providing that all samples are prepared for classification and/or comparison in such manner that the name of the owner and/or the custodian shall be unknown to the cotton classers until after the samples are classified.