Unless otherwise prescribed in these regulations, a bond on Customs Form 301, containing the bond conditions set forth in Sec. 113.62 or Sec. 113.69 of this chapter, as appropriate, may be given for the production of any required document which is not available at the time of entry. (See Sec. 141.91 for the procedure applicable to incomplete or missing invoices.) [T.D. 73-175, 38 FR 17447, July 2, 1973, as amended by T.D. 84-213, 49 FR 41184, Oct. 19, 1984]