05 Dec 2011 Agency Decision Category Rulemaking activities DownloadsRead More on Certification Specifications, Including Airworthiness Code and Acceptable Means of Compliance, for Hot Air Balloons (CS-31HB). Downloads [pdf] ED Decision 2011/013/R [pdf] CS-31HB/Amendment 1 [pdf] CS-31HB/Amendment 1 - Explanatory Note [pdf] CS-31HB/Amendment 1 - Change Information Read More Amending decision(s) ED Decision 2009/005/R Related Certification Specification(s) CS-31HB Amendment 1