Pipeline transportation safety letters and concerns

Safety concerns
Safety concerns, usually contained in final investigation reports, flag to the industry and the regulator that the Board has identified a safety deficiency for which it does not yet have sufficient information to make a recommendation. The Board does not formally assess actions that may have been taken to address safety concerns, so some of the safety concerns listed here may have been addressed or no longer pose a risk. If the Board finds that the safety deficiency persists and is systemic, however, the safety concern may lead to a recommendation.

Safety information letters
The TSB sends safety information letters to regulatory and/or industry stakeholders to advise them of potentially unsafe acts or conditions identified during an investigation that pose low risks and do not require immediate remedial action. The letters aim to promote safety or clarify issues that a stakeholder is already examining, and are sent before the investigation has been completed. Those that do not contain privileged or proprietary information are posted here.

Safety advisory letters
Safety advisory letters are concerned with safety deficiencies that pose low to medium risks, and are used to inform regulatory or industry stakeholders of unsafe conditions. A safety advisory letter suggests remedial action to reduce risks to safety.