Accident Investigations

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Did you know that all supervisors should be trained in accident investigations.

Workplace accidents such as fires, floods, serious injuries, and even death are preventable. Accident Investigation is an important element within the workplace occupational health and safety program; used to help prevent accident recurrences. The employer, employee, safety officer, and the committee or representative all contribute to an effective Accident Investigation system.

An employer must:

Accident Investigation System

  • In workplaces where an occupational health and safety program is required, make sure that it includes a system for the prompt investigation of accidents. The investigation determines the root cause(s) of the accident, and then recommends the action(s) needed to prevent accident recurrences.
  • Make sure that the program must include the maintenance of records and statistics, including investigation reports; and make them available when required by the Act.
  • Make sure that the committee or representative have the right to be notified about and participate in all workplace accident investigations, with co-operation from the employer, as part of their function to be involved on behalf of the employees.
  • In workplaces where blasting activities are performed; should there be a misfire, the employer and a blaster must ensure that the cause of the misfire is investigated while the misfired hole is being treated.

Notice of Accident

  • Notify the Director immediately when a person is killed from any cause, or is injured from any cause in a manner likely to prove fatal, at the workplace.
  • Notify the Director as soon as possible and no later than 24 hours after any of the following accidents have occurred:
    • an accidental explosion;
    • a major structural failure or collapse of a building or other structure;
    • a major release of a hazardous substance;
    • a fall from a work area in circumstances where fall protection is required by the regulations, at the workplace, whether any person is injured or not; or
    • a fire, flood or accident that causes
      • - unconsciousness;
      • - a fracture of the skull, spine, pelvis, arm, leg, ankle, wrist or a major part of the hand or foot;
      • - loss or amputation of a leg, arm, hand, foot, finger or toe;
      • - a third-degree burn to any part of the body;
      • - loss of sight in one or both eyes;
      • - asphyxiation or poisoning;
      • - any injury that requires the admission to hospital; or,
      • - any injury that endangers the life of an employee, unless the injury can be treated by immediate first aid or medical treatment and the person can return to work the following day.

When notifying the Director, a true copy of the Workers’ Compensation Board notice of the accident is considered to be sufficient notice, if it is delivered within the time required in subsection 63(1).

  • Also notify the workplace committee or representative, when notification of the Director is required.
  • Make sure that the accident scene must not be disturbed, except as directed by an officer, or as necessary to attend to persons injured or killed, prevent further injuries, or protect property that is endangered as a result of the accident.

Every person who was present at an accident when it occurred, or who has information relating to the accident, must provide all required information to an officer upon request.

“serious injury” means an injury that endangers life or causes permanent injury;
Workplace” means any place where an employee or a self-employed person is or is likely to be engaged in any occupation and includes any vehicle or mobile equipment used or likely to be used by an employee or a self-employed person in an occupation.
Program” means an occupational health and safety program required pursuant to this Act, unless the context otherwise requires.

"Employer" means a person who employs one or more employees or contracts for the services of one or more employees, and includes a constructor, contractor, or subcontractor.

“employee” means a person who is employed to do work and includes a dependent contractor.

"Officer" means an occupational health and safety officer appointed pursuant to this Act and includes the Director.
Committee” means a joint occupational health and safety committee established pursuant to this Act.
Representative” means a health and safety representative selected pursuant to the Occupational Health and Safety Act.
Requirement for program
28 (1) Where
  • (a) twenty or more employees are regularly employed by an employer other than a constructor or contractor;
  • (b) twenty or more employees are regularly employed directly by a constructor or contractor, not including employees for whose services the constructor or contractor has contracted; or
  • (c) the regulations require an occupational health and safety program, the employer shall establish and maintain a written occupational health and safety program, in consultation with the committee or representative, if any, that is adapted to the circumstances of the organization for the purpose of implementing the employer’s policy, this Act and the regulations.
“blaster” means any of the following: (i) a person who holds a blaster certificate (ii) a person who conducts a blast in a specialized blasting operation, (iii) a person who conducts a special case blast, as defined in Section 23;
“misfired hole” means a charge of explosives in a hole or part of a hole that for any reason has failed to fire as planned, and includes an aborted charge under clause 85(d);
“Director” means the Health and Safety or any person designated by the Executive Director pursuant to this Act to act on behalf of the Executive Director; Contact Number: 1-800-952-2687
Notice of Accident
[…] pursuant to the Workers’ Compensation Act


Workers' Compensation Board of Nova Scotia
5668 South Street, PO Box 1150, Halifax, NS B3J 2Y2
Telephone: (902) 491-8999
Toll-Free: 1-800-870-3331 (mainland NS)
Toll-Free: 1-800-880-0003 (Sydney)
Fax: (902) 491-8002
Web: www.wcb.ns.ca

OCCUPATIONAL HEALTH AND SAFETY ACT
S.N.S. 1996, c. 7

Section 3

3. In this Act,

(a) "aggrieved person" means an employer, constructor, contractor, employee, self-employed person, owner, supplier, provider of an occupational health or safety service, architect, engineer or union at a workplace who is directly affected by an order or decision;

(b) "analyst" means a person appointed as an analyst by the Minister pursuant to this Act;

(c) "Board" means the Labour Board established under the Labour Board Act;

(d) "committee" means a joint occupational health and safety committee established pursuant to this Act;

(e) "compliance notice" means a response, in writing, to an order of an officer, describing the extent to which the person against whom the order was made has complied with each item identified in the order;

(f) "constructor" means a person who contracts for work on a project or who undertakes work on a project himself or herself;

(g) "contractor" means a person who contracts for work to be performed at the premises of the person contracting to have the work performed, but does not include a dependent contractor or a constructor;

(h) "contracts for work" includes contracting to perform work and contracting to have work performed;

(i) "Council" means the Occupational Health and Safety Advisory Council established pursuant to this Act;

(j) "dependent contractor" means a person, whether or not employed under a contract of employment and whether or not furnishing the person's own tools, vehicles, equipment, machinery, material or any other thing, who performs work or services for another on such terms and conditions that the person is

(i) in a position of economic dependence upon the other,

(ii) under an obligation to perform duties mainly for the other, and

(iii) in a relationship with the other more closely resembling that of an employee than an independent contractor;

(k) "Deputy Minister of Labour and Advanced Education" includes a person designated by the Deputy Minister of Labour and Advanced Education to act in the stead of the Deputy Minister;

(l) "Director" means the Executive Director of Occupational Health and Safety or any person designated by the Executive Director pursuant to this Act to act on behalf of the Executive Director;

(m) "Director of Labour Standards" means the Director of Labour Standards under the Labour Standards Code;

(n) "Division" means the Occupational Health and Safety Division of the Department of Labour and Advanced Education;

(o) "employee" means a person who is employed to do work and includes a dependent contractor;

(p) "employer" means a person who employs one or more employees or contracts for the services of one or more employees, and includes a constructor, contractor or subcontractor;

(q) "former Act" means Chapter 320 of the Revised Statutes, 1989, the Occupational Health and Safety Act;

(r) Repealed. [S.N.S. 2010, c. 37, s. 117]

(s) "Minister" means the Minister of Labour and Advanced Education;

(t) "occupation" means any employment, business, calling or pursuit;

(u) "officer" means an occupational health and safety officer appointed pursuant to this Act and includes the Director;

(v) "owner" includes a trustee, receiver, mortgagee in possession, tenant, lessee or occupier of lands or premises used as a workplace and a person who acts for, or on behalf of, an owner as an agent or delegate;

(w) "police officer" means

(i) a member of the Royal Canadian Mounted Police, or

(ii) a member or chief officer of a police force appointed pursuant to the Police Act;

(x) "policy" means an occupational health and safety policy made pursuant to this Act;

(y) "practicable" means possible, given current knowledge, technology and invention;

(z) "program" means an occupational health and safety program required pursuant to this Act, unless the context otherwise requires;

(aa) "project" means a construction project, and includes

(i) the construction, erection, excavation, renovation, repair, alteration or demolition of any structure, building, tunnel or work and the preparatory work of land clearing or earth moving, and

(ii) work of any nature or kind designated by the Director as a project;

(ab) "reasonably practicable" means practicable unless the person on whom a duty is placed can show that there is a gross disproportion between the benefit of the duty and the cost, in time, trouble and money, of the measures to secure the duty;

(ac) "regularly employed" includes seasonal employment with a predictably recurring period of employment that exceeds four weeks, unless otherwise established by regulation or ordered by an officer;

(aca) "repeatedly" means occurring more than once within the preceding three year period;

(ad) "representative" means a health and safety representative selected pursuant to this Act;

(ae) "self-employed person" means a person who is engaged in an occupation on that person's own behalf and includes a person or persons operating a sole proprietorship but does not include a dependent contractor;

(aea) "serious injury" means an injury that endangers life or causes permanent injury;

(af) "supplier" means a person who manufactures, supplies, sells, leases, distributes or installs any tool, equipment, machine or device or any biological, chemical or physical agent to be used at or near a workplace;

(ag) "union" includes a trade union as defined in the Trade Union Act that has the status of bargaining agent under that Act in respect of any bargaining unit at a workplace, and includes an organization representing employees where the organization has exclusive bargaining rights under any other Act in respect of the employees;

(ah) "workplace" means any place where an employee or a self-employed person is or is likely to be engaged in any occupation and includes any vehicle or mobile equipment used or likely to be used by an employee or a self-employed person in an occupation.

[S.N.S. 2000, c. 28, s. 86; 2010, c. 66, s. 2; 2010, c. 37, s. 117; 2011, c. 24, s. 2; 2016, c. 14, s. 1]

Section 28

28. (1) Where

(a) twenty or more employees are regularly employed by an employer other than a constructor or contractor;

(b) twenty or more employees are regularly employed directly by a constructor or contractor, not including employees for whose services the constructor or contractor has contracted; or

(c) the regulations require an occupational health and safety program,

the employer shall establish and maintain a written occupational health and safety program, in consultation with the committee or representative, if any, that is adapted to the circumstances of the organization for the purpose of implementing the employer's policy, this Act and the regulations.

(2) The program shall include

(a) provision for the training and supervision of employees in matters necessary to their health and safety and the health and safety of other persons at the workplace;

(b) provision for the preparation of written work procedures required to implement safe and healthy work practices, including those required pursuant to this Act, the regulations or by order of an officer, and identification of the types of work for which the procedures are required at the employer's workplace;

(c) provision for the establishment and continued operation of a committee required pursuant to this Act, including maintenance of records of membership, rules of procedure, access to a level of management with authority to resolve health and safety matters and any information required under this Act or the regulations to be maintained in relation to a committee;

(d) provision for the selection and functions of a representative where required pursuant to this Act, including provision for access by the representative to a level of management with authority to resolve health and safety matters;

(e) a hazard identification system that includes

(i) evaluation of the workplace to identify potential hazards,

(ii) procedures and schedules for regular inspections,

(iii) procedures for ensuring the reporting of hazards and the accountability of persons responsible for the correction of hazards, and

(iv) identification of the circumstances where hazards must be reported by the employer to the committee or representative, if any, and the procedures for doing so;

(f) a system for workplace occupational health and safety monitoring, prompt follow-up and control of identified hazards;

(g) a system for the prompt investigation of hazardous occurrences to determine their causes and the actions needed to prevent recurrences;

(h) maintenance of records and statistics, including reports of occupational health and safety inspections and occupational health and safety investigations, with provision for making them available to persons entitled to receive them pursuant to this Act; and

(i) provision for monitoring the implementation and effectiveness of the program.

(3) The employer shall make available a copy of the program

(a) to the committee or representative, if any; and

(b) on request, to an employee at the workplace.

Section 31

31. It is the function of the committee to involve employers and employees together in occupational health and safety in the workplace and, without restricting the generality of the foregoing, includes

(a) the co-operative identification of hazards to health and safety and effective systems to respond to the hazards;

(b) the co-operative auditing of compliance with health and safety requirements in the workplace;

(c) receipt, investigation and prompt disposition of matters and complaints with respect to workplace health and safety;

(d) participation in inspections, inquiries and investigations concerning the occupational health and safety of the employees and, in particular, participation in an inspection referred to in Section 50;

(e) advising on individual protective devices, equipment and clothing that, complying with this Act and the regulations, are best adapted to the needs of the employees;

(f) advising the employer regarding a policy or program required pursuant to this Act or the regulations and making recommendations to the employer, the employees and any person for the improvement of the health and safety of persons at the workplace;

(g) maintaining records and minutes of committee meetings in a form and manner approved by the Director and providing an officer with a copy of these records or minutes on request; and

(h) performing any other duties assigned to it

(i) by the Director,

(ii) by agreement between the employer and the employees or the union, or

(iii) as are established by the regulations.

[S.N.S. 2010, c. 66, s. 8]

Section 33

33. (1) At a workplace where no committee is required pursuant to Section 29 and where the number of persons employed is five or more, the employer shall cause the employees to select at least one health and safety representative from among the employees at the workplace who are not connected with the management of the workplace.

(2) At a project where no committee is required pursuant to Section 29 and where the number of persons employed is five or more, a constructor shall cause the employees to select at least one health and safety representative for the purposes of the project from among the employees at the project who are not connected with the management at the project.

(3) At a workplace where fewer than five persons are employed, the Director may

(a) consult with the employer and employees at the workplace regarding whether a representative should be selected at the workplace; and

(b) order that a representative be selected by the employees from among the employees at the workplace who are not connected with the management of the workplace.

(4) Where an order respecting the selection of a representative is given pursuant to subsection (3), the employer shall ensure that the representative is selected and functioning in accordance with this Act within fifteen days of receipt of the order.

(5) An employee who is a representative is entitled to such reasonable time off from work as is necessary to carry out the employee's functions as a representative, and such time off is deemed to be work time for which the employee shall be paid by the employer at the applicable rate.

(6) It is the function of the representative to be involved, on behalf of the employees together with the employer, in occupational health and safety in the workplace and, without restricting the generality of the foregoing, includes

(a) the co-operative identification of hazards to health and safety and effective systems to respond to the hazards;

(b) the co-operative auditing of compliance with health and safety requirements in the workplace;

(c) receipt of and co-operation with the employer in the investigation and prompt disposition of matters and complaints with respect to workplace health and safety;

(d) participation in inspections, inquiries and investigations concerning the occupational health and safety of the employees and, in particular, participation in an inspection referred to in Section 50;

(e) advising on individual protective devices, equipment and clothing which, complying with this Act and the regulations, are best adapted to the needs of the employees;

(f) advising the employer regarding a policy or program required by this Act or the regulations and making recommendations to the employer, the employees and any person for the improvement of the health and safety of persons at the workplace; and

(g) performing any other duties assigned to the representative

(i) by the Director,

(ii) by agreement between the employer and the employees or the union, or

(iii) as are established by the regulations.

Section 63

63. (1) The employer shall notify the Director

(a) as soon as possible, but in no case later than twenty-four hours, after a fire, flood or accident at the workplace that causes

(i) unconsciousness,

(ii) a fracture of the skull, spine, pelvis, arm, leg, ankle, wrist or a major part of the hand or foot,

(iii) loss or amputation of a leg, arm, hand, foot, finger or toe,

(iv) a third degree burn to any part of the body,

(v) loss of sight in one or both eyes,

(vi) asphyxiation or poisoning,

(vii) any injury that requires the admission to hospital, or

(viii) any injury that endangers the life,

of an employee, unless the injury can be treated by immediate first aid or medical treatment and the person can return to work the following day;

(b) as soon as possible, but in no case later than twentyfour hours, after

(i) an accidental explosion,

(ii) a major structural failure or collapse of a building or other structure,

(iii) a major release of a hazardous substance, or

(iv) a fall from a work area in circumstances where fall protection is required by the regulations,

at the workplace, whether any person is injured or not; and

(c) immediately when a person is killed from any cause, or is injured from any cause in a manner likely to prove fatal, at the workplace.

(2) A true copy of the notice of accident required to be given by an employer to the Workers' Compensation Board, pursuant to the Workers' Compensation Act , may be delivered to the Director as sufficient notice pursuant to this Section if it is delivered within the time required in subsection (1).

(3) Where notice is required to be sent to the Director pursuant to this Section, the employer shall notify the committee or representative at the workplace, if any.

[S.N.S. 2010, c. 66, s. 12; 2016, c. 14, s. 4]

Section 64

64. Except as otherwise directed by an officer, no person shall disturb the scene of an accident to which subsection 63(1) applies except as is necessary to

(a) attend to persons injured or killed;

(b) prevent further injuries; or

(c) protect property that is endangered as a result of the accident.

[2016, c. 14, s. 5]

Section 65

65. Every person present at an accident when it occurred or who has any information relating to the accident shall, upon the request of an officer, provide to the officer such information respecting the accident as the officer requests.

Blasting Safety Regulations
N.S. Reg. 89/2008

Section 3 Definitions

3. In these regulations,

(a) "Act" means the Occupational Health and Safety Act;

(b) "blaster" means any of the following:

(i) a person who holds a blaster certificate,

(ii) a person who conducts a blast in a specialized blasting operation,

(iii) a person who conducts a special case blast, as defined in Section 23;

(c) "blaster certificate" means a certificate of qualification in the blaster trade issued under the Apprenticeship and Trades Qualifications Act;

(d) "blasting activity" includes all of the following:

(i) storing, handling, transporting, preparing and using explosives,

(ii) drilling at a blasting area or in combination with the use of explosives,

(iii) loading a hole with explosives;

(e) "blasting area" means the zone extending 50 m in all directions from the place in which explosives are handled, prepared, used or loaded for firing, or in which misfired explosives exist or are believed to exist;

(f) "blasting machine" means an electric or electro-mechanical device that provides electric energy for energizing electric detonators, but does not include batteries by themselves;

(g) "blasting meter" means a test instrument, such as a blasting galvanometer, blasting ohmmeter, blasting voltmeter or blasting multimeter, that is used to check detonators and electric circuits for continuity, resistance, stray currents and other pertinent measurements;

(h) "blasting operation" means the portion of a procedure involving explosives that begins when explosives are brought into the area to be blasted and ends when all explosives are removed from the area;

(i) "blasting switch" means a device used to permit the firing of electric blasting circuits from power lines;

(j) "burden" means the distance between the blast hole and the free face of the material being blasted;

(k) "day box" means a portable unit used for storing explosives;

(l) "detonator" means a device used to fire a charge;

(m) "explosive" means a substance, including a detonator or primed explosive, that is manufactured or used to produce an explosion by detonation or deflagration and that is regulated by the Explosives Act (Canada), but does not include ammunition for weapons, fireworks or explosive-actuated tools;

(n) "extraneous electricity" means unwanted electric current that is present at a blasting area and that could enter an electric blasting circuit, and includes stray current, static electricity, radio frequency energy and time-varying electric and magnetic fields;

(o) "magazine" means a fixed unit used for storing explosives;

(p) "misfired hole" means a charge of explosives in a hole or part of a hole that for any reason has failed to fire as planned, and includes an aborted charge under clause 85(d);

(q) "prime a charge" means to position a detonator for use in firing a charge;

(r) "primed explosive" means an explosive containing a detonator;

(s) "specialized blasting" means blasting of any of the following types:

(i) blasting in a confined space,

(ii) blasting underwater,

(iii) blasting to demolish an above-ground building, stack or similar structure,

(iv) blasting ice,

(v) blasting in theatrical applications,

(vi) blasting in, at or near an oil or gas well.

Section 89 Treating misfired hole

89. (1) An employer and a blaster must ensure that a misfired hole is treated to ensure the removal of all hazards from the misfired hole in a manner that complies with these regulations.

(2) While a misfired hole is being treated, an employer must ensure all of the following:

(a) that the blasting area is fully illuminated;

(b) that the work is directly and constantly supervised by a blaster;

(c) that the cause of the misfire is investigated;

(d) that precautions are taken to prevent an accidental explosion.

(3) An employer and a blaster must ensure that a misfired hole is treated at a safe and suitable time and in accordance with any instructions provided by the manufacturer of the detonator.

(4) Before treating a misfired hole, a blaster must inform all supervisors of all employees in the blasting area of the means that will be used to treat the misfired hole.