The interpreter generally would have the option of either prorating the half-day among the CJA representations, or billing the entire half-day rate to one representation.  The interpreter may not bill the entire half-day on multiple vouchers.  The supporting voucher materials must explain the method of billing and indicate the number of other CJA representations involved.  The CJA representations should be identified by name or case number only if the work was performed for the appointed attorney who will be certifying the voucher.