May 8, 2003 - Effective Date June 9, 2003 5/8/2003	Proposed Regulations for 6351-T6 Alloy Cylinders 9/10/2003
Extend Date for Issuing RIN to Visual Inspection Facilities 9/26/2003	August 8, 2002 - Effective Date October 1, 2002 8/8/2002
Adopting U.N. Cylinder Specifications 3/9/2005	Luxfer Recall 5/1/2006
Eddy Current Proposal for 6351-T6 Alloy Cylinders 10/26/2005	Final Rule On Requalifying UN Specification Cylinders 6/12/2006
Final Rule On 6351-T6 Alloy Cylinders 8/29/2006	Unauthorized Cylinder Requalification by CSSI 12/26/2006
Federal Register April 12, 2007 4/12/2007	Training Comparison Chart 1/1/2008
CGA Pamphlets (cited vs latest editions) 10/1/2007