Designed as a regulation-compliant solution, the new Thermo King Precedent rail-ready temperature control platform is available for intermodal shippers. Precedent features a platform for the rail market designed to be fully compliant with new Environmental Protection Agency (EPA) Tier IV final regulations. Models include the S-600, a greater-than-25 HP single temperature unit, which is considered Ultra-Low-Emission In-Use Performance Standard (ULETRU) by California Air Resources Board (CARB), and the S-700, a greater-than-25 HP high capacity single temperature unit with an evergreen engine for use in California.