One of the most challenging design problems for the Transmission Line Magnet is the design of the cold pipe
supports.  These must maintain conductor centering in the presence of a large magnetic decentering force gradient, while preserving the project goals of low cost and low heat leak.  The current design of the cold mass support is an injection molded ULTEM (glass-filled polyetherimide) piece which features a 40-60K heat intercept and a production cost of under $1.   The heat intercept is based on a design developed at KEK in which 1/4" Invar tubes running the length of the magnet are press-fit into a thin walled aluminum extrusion.  Progress on other cryogenic systems such as the distribution piping, quench relief, and current leads are discussed.