CSX &lt;CSX> UNIT SETS IMPROVED SHIPPING SERVICE
  CSX Corp's Sea-Land Corp unit
  said it will offer improved containership services between
  Puerto Rico and the East Coast and Gulf Coast of the United
  States, beginning March 16.
      The carrier said it will provide shorter door-to-door
  transit times, more convenient cargo availability and better
  rail connections for traffic moving between Puerto Rico and
  North America.
  

