Revision and Cancellation of Technical Regulations
  A technical regulation is revised or canceled in a case 
  where the circumstances or objectives that stimulated the legislative approval 
  of the regulation change or cease to exist.
  The notification of development of revisions and 
  amendments to a technical regulation is published per the procedure defined 
  for development of the technical regulation. Revisions and amendments to a 
  technical regulation are made per the procedure established for newly 
  developed technical regulations.
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  Special procedure for developing and approving technical regulations