If the source name does not appear in the Source Valids List, a new source name may be submitted for review. Recommendations When keying DIFs with source valids, remember to key with the general term as well as the specific term, if applicable. If the appropriate source is not in the valids list, a new source name may be submitted with the DIF for review.
Short name is usually a mnemonic or abbreviated version of the long name.
When submitting a new short name, always check the Source Valids List to ensure mutual exclusivity among source short names. No two sources may have the same short name. If no short name is available, the long name is written in all capital letters. Go to the DIF Guide Table of Contents .