The Board
The Act provides for a Board consisting of up to five full-time members, including the Chairperson. The Act requires that members be collectively knowledgeable about marine, commodity pipeline, rail and air transportation. They are appointed by the Governor in Council. Members' duties include establishing policies respecting the classes of occurrences to be investigated and policies to be followed in the conduct of investigations, reviewing investigation reports, determining findings as to causes and contributing factors, identifying safety deficiencies and making safety recommendations. Reporting to the Chairperson is the Executive Director.

Executive Director
The Chairperson has delegated to the Executive Director the role and functions of a Chief Operating Officer. As such, the Executive Director is responsible for seeing to the day-to-day management and coordination of all TSB activities and operations to ensure that they are conducted effectively and efficiently; included are responsibilities for the acquisition and allocation of human and financial resources, and the provision of ongoing support and advice to the Chairperson.

Communications
This division is responsible for providing advice with respect to the formulation of TSB communications policies, for establishing and implementing TSB communications strategies and plans through such activities as making public the results of the TSB's work. It keeps the TSB informed on the public response to current transportation safety issues and it provides communications support to the agency in meeting public and media information requests. It is also responsible for the content of the TSB Web site.

Legal Services
This area provides services with respect to all legal matters which arise in connection with TSB activities, including services and advice in connection with proceedings by or against the TSB in legal or other proceedings.

Corporate Services Directorate
The directorate assists in achieving efficient, effective and economical delivery of departmental programs through provision of administrative, financial and human resource services and controls. The directorate ensures departmental implementation of government policies and provides coordination for corporate planning and reporting activities. It is also responsible for establishing and maintaining the informatics infrastructure and information management services to support the TSB's investigative, analytical and administrative functions.

The directorate comprises the following organizational units:

Finance and Administration
This division provides financial and administrative services to the department. It is responsible for services and advice to management, financial reporting and control, security and accommodation. It ensures that there are adequate controls to assure the public that these functions are effectively and efficiently administered.

Human Resources
This division provides a full range of human resources services and controls to managers and employees of the department. This includes advice and support to managers on staff relations, human resources and career planning, staffing, classification, pay and benefits, official languages, training and development, program development and policy interpretation, and coordination of an employee assistance program.

Informatics
This division operates and maintains the department's transportation occurrence databases and all other computer systems required to support the TSB's investigative, analytical and administrative activities.

The division develops policies and procedures for all aspects of the TSB's informatics needs. It operates and maintains the TSB's central computing facility and its local and wide area networks. It supports the desktop environment at the Head Office and in the Regional Offices, maintains its in-house (non-commercial) software and develops new software to meet changing requirements.

Information Management
This division is responsible for providing information management policies, procedures and services. Services include the management of corporate information holdings, library services, and the administration of the Access to Information Act and the Privacy Act.

Investigation Operations Directorate
The directorate is responsible for all aspects of the department's marine, rail, pipeline and air transportation safety investigations. It is also responsible for the management of a multi-modal voluntary confidential reporting program (SECURITAS).

The directorate comprises the following organizational units:

Human Performance
This division provides human factor and passenger safety specialist support to investigations and macro analysis projects. Human Performance issues include the impact of the wide domain of human factors/ergonomics on behaviour, including organizational and management factors. The division is also active in the development of, and training on, tools and frameworks that aid the systematic investigation for human factors.

Macro Analysis
This division conducts macro analysis projects including cross-modal studies in which trends, hazards and systemic safety deficiencies in the national transportation system are identified, analyzed and validated. The division provides consultation and expert advice on current theory, methods and results related to such research. It also responds to requests from investigators and external entities for statistical data.

Publishing and Linguistic Services
This division produces all TSB public documents. It also prepares the TSB's printed products (e.g. occurrence reports and the TSB's safety digest, Reflexions) for publication and distribution.

Air Investigation Branch
The Director of this branch has exclusive responsibility to direct the conduct of air investigations on behalf of the Board. The investigators are experienced pilots, aircraft maintenance engineers or air traffic controllers.

Marine Investigation Branch
The Director of this branch has exclusive responsibility to direct the conduct of marine investigations on behalf of the Board. Marine investigators are experienced master mariners, chief engineers or naval architects.

Rail and Pipeline Investigation Branch
The Director of this branch has exclusive responsibility to direct the conduct of rail and commodity pipeline investigations on behalf of the Board. Rail investigators are experienced in the many disciplines of rail operations (locomotive operations, equipment design and maintenance, roadbed, tracks and signals, operating rules, and dangerous goods). Commodity Pipeline investigators must be familiar with pipeline design and operations.

Engineering Branch
This branch specializes in laboratory testing and analysis of parts, structural components, systems, instruments, and wreckage of materials and components from transportation occurrences. Additional responsibilities include search and recovery of wreckage, documentation of occurrence sites, and the extraction and interpretation of data from on-board voice and data records. The Engineering Branch has also developed expertise in document restoration, image analysis, and new investigation techniques based on photogrammetric and remote sensing technology.