Abstract: Several years ago, after fairly extensive consultation with others in the field, Judy Campbell and I suggested in a review of yeast chromosome replication published in the CSH Yeast Books that ARS elements should be named in a way that reflects their chromosomal location, and that is consistent with yeast genetic nomenclature. So the suggestion was that ARS elements should be named "ARS" followed by a series of 3 or 4 digits, where the first 1 or 2 digits would identify the chromosome, and the last two digits would indicate the number of the ARS on that chromosome. On chromosomes III and VI, the ARS elements have been numbered systematically from the left end to the right end. For other chromosomes, which have not been systematically analyzed, our proposal was to name the ARS elements in the order of discovery, so, for example, the first ARS on chromosome I would be ARS101, etc. The Fangman lab has more or less followed this nomenclature in naming the ARS elements that they have studied on chromosome V (ARS501), and on chromosome XIV (ARS1411, ARS1412, ARS1413, and ARS1414). So I would strongly urge that ARS137, ARS245 and ARS249, which have not yet been published, be called ARS701, ARS1501, and ARS901, respectively.