http://www.jramericas.com/pages.php?pageid=103
At this time, Horizon remains the designated service center in North America for all JR products....DSM or DMSS. Obviously there are changes in the contractual relationship between JR and Horizon, but it would be foolish for Horizon to neglect a DSM customer or JR to neglect a JR customer. That is something neither company could afford to do.