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Certifying Officers will sign basic vouchers or voucher-schedules ( SF 1166 ) " Authorized Certifying Officer " with their name typed or printed below the signature on the voucher or voucher-schedule , and the date of the certification will be shown in the certification . Since most of the taxonomic work was accomplished from collections of empty shells , there is a need to examine live and preserved specimens for verification and clarification of some of the taxonomic problems . Enter one or more search criteria using the inputs described below , and press the " Search " button at the bottom of the form . For paper voucher-schedules , Certifying Officers are requested to provide a telephone number , noted under their typed or printed name , to be used to contact the Certifying Officer in the event the receiving RFC has questions related to the schedule-voucher . If the field in the database contains only numbers ( e.g ., " Publication Year " or " Accession Number " ) , only exact matches will be retrieved - - wildcards and ranges cannot be used . Enter one or more search criteria and press the " Search " button at the bottom of the form . Working in Arctic frequently requires living in isolated tent camps up to 300 miles away from any supply base , so doing research there happily leads not only to novel scientific discoveries but to adventures as well .