The CSB issues safety recommendations to prevent the recurrence or reduce the likelihood or consequences of similar incidents or hazards in the future. Recommendations are issued to a variety of parties, including government entities, safety organizations, trade unions, trade associations, corporations, emergency response organizations, educational institutions, and public interest groups. Recommendations are published in CSB reports and are closed only by vote of the Board. The CSB tracks all recommendations and communicates regularly with recommendations recipients to ensure that the recommended corrective actions are implemented. For more information, see Frequently Asked Questions about CSB recommendations.
2010-12-I-NC-1 URGENT!
Enact a Tentative Interim Amendment as well as permanent changes to the National Fuel Gas Code (NFPA 54/ANSI Z223.1) to require that during the purging of fuel gas piping at industrial, commercial, and public facilities: (a) Purged fuel gases shall be directly vented to a safe location outdoors, away from personnel and ignition sources (b) If it is not possible to vent purged gases outdoors, purging gas to the inside of a building shall be allowed only upon approval by the authority having jurisdiction of a documented risk evaluation and hazard control plan. The evaluation and plan shall establish that indoor purging is necessary and that adequate safeguards are in place such as: • Evacuating nonessential personnel from the vicinity of the purging; • Providing adequate ventilation to maintain the gas concentration at an established safe level, substantially below the lower explosive limit; and • Controlling or eliminating potential ignition sources (c) Combustible gas detectors are used to continuously monitor the gas concentration at appropriate locations in the vicinity where purged gases are released (d) Personnel are trained about the problems of odor fade and odor fatigue and warned against relying on odor alone for detecting releases of fuel gases Status: Closed - Acceptable Action
Enact a Tentative Interim Amendment as well as permanent changes to the National Fuel Gas Code (NFPA 54/ANSI Z223.1) to require that during the purging of fuel gas piping at industrial, commercial, and public facilities: (a) Purged fuel gases shall be directly vented to a safe location outdoors, away from personnel and ignition sources (b) If it is not possible to vent purged gases outdoors, purging gas to the inside of a building shall be allowed only upon approval by the authority having jurisdiction of a documented risk evaluation and hazard control plan. The evaluation and plan shall establish that indoor purging is necessary and that adequate safeguards are in place such as: • Evacuating nonessential personnel from the vicinity of the purging; • Providing adequate ventilation to maintain the gas concentration at an established safe level, substantially below the lower explosive limit; and • Controlling or eliminating potential ignition sources (c) Combustible gas detectors are used to continuously monitor the gas concentration at appropriate locations in the vicinity where purged gases are released (d) Personnel are trained about the problems of odor fade and odor fatigue and warned against relying on odor alone for detecting releases of fuel gases
(d) Personnel are trained about the problems of odor fade and odor fatigue and warned against relying on odor alone for detecting releases of fuel gases
2010-12-I-NC-2 URGENT!
Incorporate the revised gas purging provisions of the National Fuel Gas Code, consistent with CSB recommendation 2009-12-I-NC-R1, into the International Fuel Gas Code Status: Closed - Acceptable Action
Incorporate the revised gas purging provisions of the National Fuel Gas Code, consistent with CSB recommendation 2009-12-I-NC-R1, into the International Fuel Gas Code