This new edition is a periodic re-issuance to ensure that UL's Standards remain up-to-date with regard to format and editorial issues such as renumbering, repaginating, correction of editorial errors, correction of cross-references and updating titles of referenced Standards. Revisions are also being issued in accordance with the Subject 1994 bulletin dated September 12, 2003. In addition, the flammability ratings have been revised to reflect changes in the Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL 94.