Los Angeles Division Bringing local model railroaders together in Los Angeles and Ventura 2013 NMRA Pacific Southwest Region LA Division PSR Dispatch/L.A. coupler Archives The PSR dispatch is a quarterly publication that has news and information pertaining to all divisions within the Pacific Southwest Region. We are now making previous issues of the L.A. Coupler available. Latest issue of L.A. Coupler L.A. Coupler Archives Latest issue of PSR Dispatch