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Closed Recommendations

The table below is a summary of the closed Hazardous Materials NTSB Recommendations.

NTSB Classifications:

  • CEX - Closed Exceeds Recommended Action
  • CAA - Closed Acceptable Action
  • CAAA - Closed Acceptable Alternate Action
  • CUA - Closed Unacceptable Action
  • CUAN - Closed Unacceptable Action/No Response Received
  • CR - Closed Reconsidered
  • CNLA - Closed No Longer Applicable
  • CS - Closed Superseded
  • CAAS, CAAAS, CUAS - Closed Acceptable/Acceptable Alternate/Unacceptable Action Superseded

Closed Recommendations

Hazardous Materials Closed NTSB Recommendations
Recommendation Number Closed Classification and Date Issue Date
A-96-030  Oxidizing Materials on Aircraft; (CNLA);
Closed: 02/04/2002
May 31, 1996
A-98-080  Air Carrier Emergency Telephone Number; (CUA);
Closed: 08/18/2003
August 12, 1998
A-99-080  Lithium Batteries; (CAA);
Closed: 06/19/2008
November 16, 1999
A-99-081 Lithium Batteries; (CUA);
Closed: 06/13/2001
November 16, 1999
A-99-082 Lithium Batteries; (CAA);
Closed: 06/19/2008
November 16, 1999
A-99-083 Lithium Batteries; (CAAA);
Closed: 09/26/2002
November 16, 1999
A-99-084  Lithium Batteries; (CAA);
Closed: 09/26/2002
November 16, 1999
A-07-104  Lithium Batteries; (CR);
Closed: 12/26/2012
December 17, 2007
A-07-105  Lithium Batteries; (CR);
Closed: 12/26/2012
December 17, 2007
A-07-106  Lithium Batteries; (CAA);
Closed: 7/21/2010
December 17, 2007
A-07-107  Lithium Batteries; (CAAA);
Closed: 09/06/2013
December 17, 2007
A-07-108  Lithium Batteries; (CAAA);
Closed: 11/12/2014
December 17, 2007
A-07-109  Lithium Batteries; (CAAA);
Closed: 11/12/2014
December 17, 2007
H-90-091  Cargo Tank Remote Shut-Off Requirements; (CAA);
Closed: 08/07/2003
September 12, 1990
H-92-001 Cargo Tanks; (CAA);
Closed: 12/12/2014
March 20, 1992
H-92-002 Cargo Tanks; (CAA);
Closed: 10/25/2002
March 20, 1992
H-92-003  Cargo Tanks; (CAA);
Closed: 09/08/1999
March 20, 1992
H-92-004  Cargo Tank Rollover Requirements; (CUA);
Closed: 06/25/2004
March 20, 1992
H-92-005 Cargo Tank Rollover Requirements; (CUA);
Closed: 06/25/2004
March 20, 1992
H-92-006 Cargo Tank Incident Reporting; (CAA);
Closed: 10/20/2004
March 20, 1992
H-93-034 Cargo Tanks; (CAA);
Closed: 08/07/2003
October 4, 1993
H-95-014 Cargo Tanks; (CAAA);
Closed: 08/07/2003
August 1, 1995
H-95-037 Cargo Tanks; (CUA);
Closed: 08/18/2003
November 27, 1995
H-98-027  Wetlines; (CNLA);
Closed: 03/15/2016
May 18, 1998
H-99-057 Loading/Unloading Instructions for Cargo Tanks; (CAAA);
Closed: 10/25/2002
October 1, 1999
H-99-058 Immediate Reporting of Hazardous Materials Incident; (CUA);
Closed: 10/20/2004
October 1, 1999
H-02-023  Cylinders Carrying Hydrogen; (CAA);
Closed: 04/27/2010
September 26, 2002
H-02-024  Cylinders Carrying Hydrogen; (CUA);
Closed: 04/27/2010
September 26, 2002
H-02-025  Cylinders Carrying Hydrogen; (CAA);
Closed: 04/01/2005
September 26, 2002
H-09-001  Mobile Acetylene Trailers; (CAAA);
Closed: 03/06/2017
March 5, 2009
H-09-002  Mobile Acetylene Trailers; (CAAA);
Closed: 03/06/2017
March 5, 2009
H-11-001  Cargo Tank Data; (CUA);
Closed: 07/08/2013
September 2, 2011
H-11-004  Rollover Prevention Program; (CAA);
Closed: 01/06/2017
September 2, 2011
H-12-002  Advisory Bulletin on Swansea, SC Hose Rupture Incident; (CAA);
Closed: 02/04/2013
May 4, 2012
H-12-003  Verification of Chemical Compatibility of Hose Assembly; (CAAA);
Closed: 10/27/2015
May 4, 2012
H-12-004  Passive Emergency Shutdown for Partial Failure of Hose Assembly; (CUA);
Closed: 06/19/2014
May 4, 2012
H-12-005  Letter of Interpretation on 49 CFR 180.416(d); (CAA);
Closed: 02/04/2013
May 4, 2012
H-12-006  Guidance on Testing and Recordkeeping Requirements of 49 CFR 180.407; (CAA);
Closed: 06/19/2014
May 4, 2012
I-90-008 Cargo Securement; (CUA);
Closed: 07/20/2001
March 23, 1990
I-90-009 Inspection Requirements for Low Pressure Cylinders; (CUA);
Closed: 07/20/2001
March 23, 1990
I-92-001 Packaging to Minimize Risk of Puncture; (CAAA);
Closed: 03/09/2004
October 28, 1992
I-92-002 Portable Tanks; (CAA);
Closed: 05/28/2002
October 28, 1992
I-93-001 Cylinder Inspection; (CUA);
Closed: 01/23/2002
November 30, 1993
I-93-002 Cylinder Inspection; (CUA);
Closed: 01/23/2002
November 30, 1993
I-00-006 Applicability of the HMR; (CUA);
Closed: 03/29/2004
June 29, 2000
I-01-001 Written Reporting Standards; (CAAA);
Closed: 10/20/2004
March 12, 2001
I-02-001 Loading/Unloading; (CAAA);
Closed: 10/29/2013
July 16, 2002
I-02-002 Loading/Unloading; (CAAA);
Closed: 10/29/2013
July 16, 2002
I-07-001 Pressurized Aluminum Cylinders; (CUA);
Closed: 02/04/2013
June 27, 2007
I-07-002 Pressurized Aluminum Cylinders; (CAA);
Closed: 02/04/2013
June 27, 2007
R-89-052 Shipper Notification of HM Incidents; (CNLA);
Closed: 10/20/2004
July 14, 1989
R-89-053 Closure Fittings on Rail Tank Cars; (CUA);
Closed: 03/19/2010
July 14, 1989
R-92-023 Periodic Inspection & Testing of Rail Tank Cars; (CAA);
Closed: 01/11/2013
December 31, 1992
R-95-011 Periodic Inspection & Testing of Rail Tank Car Linings & Coatings; (CAA);
Closed: 02/10/1997
March 2, 1995
R-01-003  Written Reporting Standards; (CAA);
Closed: 01/11/2013
March 12, 2001
R-04-010  Loading Unloading; (CAAA);
Closed: 10/29/2013
December 15, 2004
R-07-005  HMEP Grant Funds; (CR);
Closed: 06/07/2011
April 25, 2007
R-08-013 Optimum Separation Requirements; (CUA);
Closed: 03/09/2017
May 22, 2008
R-12-005  Enhanced Protection of DOT-111 Tank Cars Used in Ethanol and Crude Oil Service; (CAA);
Closed: 07/12/2016
March 2, 2012
R-12-006  Bottom Outlet Valve Closure; (CAA);
Closed: 07/12/2016
March 2, 2012
R-14-004  Rail Routing of Trains Carrying Flammable Liquids; (CAA);
Closed: 07/12/2016
January 23, 2014
R-14-018  Train Crew Emergency Response Information; (CR);
Closed: 04/07/2017
August 22, 2014
R-14-020 RCRMS Risk Assessment Tool; (CAA);
Closed: 04/07/2017
August 22, 2014
R-14-021 Audits of Short Line and Regional Railroads; (CAA);
Closed: 04/07/2017
August 22, 2014
R-15-014 Thermal Protection in Tank Cars in Class 3 Flammable Liquid Service; (CAA);
Closed: 03/09/2017
April 3, 2015
R-15-015 Appropriately Sized PRDs for Tank Cars in Class 3 Flammable Liquid Service; (CAA);
Closed: 03/09/2017
April 3, 2015
Updated: Wednesday, November 29, 2017