ASABE has initiated project to revise ANSI/ASAE S315.4, Agricultural Baling Twine for Automatic Balers. Standard provides uniform polyolefin and sisal agricultural baler twine specifications to ensure satisfactory performance in round and square balers as well as adequate durability in normal storage and handling of baled forage and biomass materials. Revision adds larger packaging size category for large square baler twine and re-wording of description for knotters on large square baler.