Exemption and Apportionment of Liability

Overview

Under art. 1457 CCQ, the claimant must prove fault (faute), injury (préjudice), and causation (lien de causalité). The defendant may contest those conditions or invoke a defence, an exemption, or a rule reducing the indemnity. These routes have different effects: disproving causation defeats the claim for the injury concerned, whereas contributory fault may leave liability in place while reducing recovery.

First identify the applicable regime. A claim concerning an obligation arising from a contract binding the parties falls under art. 1458 CCQ. Special compensation schemes can also exclude ordinary proceedings. In particular, examples involving bodily injury caused by an automobile cannot simply be analysed as ordinary fault-based compensation claims in Quebec. The discussion below assumes that an extra-contractual action is available.

Learning Objectives

• Apply superior force under art. 1470 CCQ by assessing unforeseeability, irresistibility, causal effect and the defendant's conduct.
• Differentiate contributory fault under art. 1478 CCQ from assumption of risk under art. 1477 CCQ and the duty to mitigate under art. 1479 CCQ.
• Analyze the operation of solidary liability among multiple persons at fault under art. 1526 CCQ and the judicial standards governing exclusion notices under arts. 1474-1476 CCQ.

Conduct of the Victim

The person claiming reparation may face three categories of objection based on personal conduct: contributory fault, assumption of the risks inherent in the activity, or failure to mitigate damages.

Fault of the Victim (art. 1478 CCQ)

Art. 1478 CCQ provides that a victim endowed with reason who, through personal fault, contributes to the occurrence of the injury for which reparation is sought must bear a share of liability proportional to the gravity of that fault relative to the fault of the person causing injury.

Apportionment mechanism. The court fixes percentages according to the gravity of the causal faults. It does not assign a share merely because the victim could have behaved differently. Complete dismissal requires a basis such as absence of fault by the defendant or absence of a causal connection to the injury; it should not be described as an arbitrary 100% reduction despite an established causal fault of the defendant.

Victim not endowed with reason. The wording of art. 1478 CCQ requires a "fault of the victim." Unlike other provisions of the Code that refer to the "act or fault" (fait ou faute), this article presupposes the capacity for discernment. A victim who lacks reason (for example, a young child) cannot have compensation reduced on the basis of personal fault. The other conditions of the defendant's liability must still be established.

Fault equivalent to an intervening cause. Reckless conduct may support a novus actus interveniens, but gross fault does not automatically erase an earlier fault. The court must establish a complete break in the initial causal connection and a new event that becomes the source of the injury. If both faults remain causal, apportionment remains the appropriate inquiry.

Example. A visitor walks through a poorly lit shared passage while looking at a telephone and trips over debris negligently left there. The defendant must prove that the visitor's lack of attention was unreasonable and contributed to the fall. The mere possibility of avoiding the debris does not decide fault. Even if the visitor acted imprudently, the dangerous obstruction may remain a direct cause, supporting apportionment rather than complete exemption.

Assumption of Risk (art. 1477 CCQ)

Assumption of risk (acceptation des risques) requires knowledge, express or implied, of the danger, free and informed participation, and a causal connection between the injury and the anticipated risk. Art. 1477 CCQ expressly preserves the victim's recourse even where accepting the risk amounts to imprudence. The inquiry is therefore specific to the risk that actually materialized.

Scope of assumption. A participant ordinarily accepts the normal, reasonably foreseeable risks inherent in an activity, rather than abnormal risks or concealed dangers. Ordinary contact in hockey differs from a gratuitous assault. Whether a risk is normal does not itself decide whether an organizer or another participant acted prudently; their conduct and the causal contribution of any fault must still be examined.

Fault of a third party aggravating the risk. Where the materialisation of the risk involves the fault of a third party (another participant, the organiser of the activity, or the person responsible for the premises), the victim may pursue that third party in liability. Assumption of risk covers only normal risks, not the aggravation resulting from the faulty conduct of another person.

Unusual risks and the duty to inform. When the activity involves unusual risks of which the participant cannot have spontaneous knowledge, the person responsible for the activity or for the premises must inform the participant. Failure to provide that information constitutes a fault capable of engaging the organiser's liability.

The rescue doctrine (acte de sauvetage). A reasonable response to another person's distress is not automatically a faulty acceptance of risk. Necessity, the prospects of useful intervention, and the danger to the rescuer matter. A rescuer injured through someone else's causal fault may seek compensation under the applicable liability rules. The rescue itself does not make the person rescued automatically liable. An unnecessary or reckless intervention may support a defence, as the electrocution example below illustrates.

Interaction with art. 1478 CCQ. Assumption of risk may constitute a contributory fault (faute contributive) within the meaning of art. 1478 CCQ, giving rise to an apportionment of liability or even to a complete exemption of the person causing injury where no fault on that person's part is established.

Duty to Mitigate (art. 1479 CCQ)

Art. 1479 CCQ codifies the principle that the person bound to make reparation for injury is not liable for any aggravation that the victim could have avoided. Its scope is determined by the reasonable measures available in the circumstances.

Nature of the obligation. Mitigation is assessed through reasonably available steps, rather than the success achieved. As an obligation of means (obligation de moyens), the duty to mitigate (obligation de minimiser les dommages) requires the prudence and diligence expected of a person in the victim's position. A reasonable measure may fail without that failure establishing a breach of the duty.

Application in health matters. Before criticizing a refusal of treatment, examine its expected benefits and risks for this victim. Mitigation does not require a useless treatment or one carrying a serious risk to life or health. If a prescribed treatment presents no appreciable risk and refusing it is unreasonable, however, the avoidable loss resulting from that refusal may be left with the victim. Any reduction must still be linked to that specific aggravation.

Identifying avoidable aggravation. A victim whose damaged property remains exposed to rain may reasonably be expected to arrange temporary protection if it is safe, accessible, and proportionate to the loss. The defendant must distinguish the original damage from the additional deterioration that protection would probably have avoided. A general assertion that the victim should have done more does not justify a reduction.

Burden of proof. The defendant alleging failure to mitigate must identify the reasonable measure omitted and prove the avoidable aggravation. The reduction concerns that aggravation, not an automatic percentage of all losses. The victim's response is assessed with the information and practical means available at the time, not with hindsight.

Conduct of the Person Causing Injury

Even where the defendant's conduct is faulty, certain circumstances allow the defendant to set aside or reduce liability by invoking the absence of gross or intentional fault, a legitimate motive, self-defence (légitime défense), or provocation.

Absence of Gross or Intentional Fault (art. 1471 CCQ)

Art. 1471 CCQ grants a favourable regime to the person who comes to another's aid or who, in a disinterested spirit, gratuitously disposes of property for the benefit of another. Such a person is bound to make reparation for injury caused only if the fault constitutes a gross fault (faute lourde) (art. 1474 CCQ) or an intentional fault (faute intentionnelle).

Gross fault under art. 1474 CCQ involves gross recklessness, gross carelessness, or gross negligence. Its seriousness lies in the conduct, not merely the severity of the injury. Intentional fault concerns harmful consequences and must be assessed separately. Art. 1471 is a statutory protection for the specified rescue or gratuitous-disposal situations; it is not a general immunity for every favour or unpaid service.

Example. A passerby attempts to rescue a child using a visibly damaged rope. Whether failure to check its resistance constitutes gross fault depends on the urgency, visible defects, available alternatives, and danger created by the attempt. An unsuccessful rescue or an ordinary error does not by itself meet the exceptional threshold required by art. 1471 CCQ.

Legitimate Motive (art. 1472 CCQ)

Art. 1472 CCQ permits a person who discloses a trade secret to invoke a legitimate motive (motif légitime) by proving that considerations of general interest prevailed over the interest in maintaining secrecy. Public health or safety may justify disclosure. The provision is limited to that situation; a useful purpose does not excuse unrelated negligence or create a general defence to unfair competition. The evidence must explain why the particular disclosure served the general interest.

Self-Defence

A person who causes injury while responding to an attack or reasonably apprehended imminent attack may invoke self-defence (légitime défense) to obtain an exemption from liability or an apportionment. Four conditions govern this defence:

1. The defendant had reason to believe that an attack was occurring or imminent. Proof of an actual attack is not required; reasonable apprehension suffices.
2. The force used was necessary and responded to an imminent threat.
3. The force was proportional to the threat.
4. The response was spontaneous. Its defensive character must be distinguished from a later act of retaliation.

Self-defence must be distinguished from vengeance and from the act of taking justice into one's own hands. The standard of evaluation is that of a reasonable person placed in the same circumstances.

Provocation

The court may take into account the provocation of the victim in evaluating the obligation to make reparation for injury caused during a physical or verbal altercation.

Conditions. The evidence must enable the court to reconstruct the incident and the response. The event relied on must have occurred immediately before the act and caused a loss of control. That subjective explanation is insufficient on its own: the response must also meet the standard of a reasonable person in the same circumstances and remain proportionate to the provocation.

Limits. Feeling offended does not establish the defence. Discourtesy or an invitation to fight does not meet the threshold. Outrageous or insulting statements may qualify when they produce the required loss of control, subject to the other conditions. Excessive force defeats the defence. Where the facts justify apportionment under art. 1478 CCQ, the victim's fault may reduce compensation without necessarily eliminating the defendant's liability.

Other Exculpatory Elements

Beyond the conduct of the parties, certain external events may destroy or limit the defendant's liability: superior force, the novus actus interveniens, and the fault of a third party.

Superior Force (art. 1470 CCQ)

Superior force (force majeure) requires an event that is both unforeseeable and irresistible under art. 1470 CCQ. An extraneous cause possessing those characteristics is assimilated to it. Externality helps distinguish events outside the defendant's sphere of control, but the article expressly centres on unforeseeability and irresistibility.

The defendant must prove that the event caused the injury and that reasonable precautions could not have prevented its harmful consequences. Difficulty, added expense, or the mere occurrence of severe weather is insufficient. Torrential rain, a strike, or theft is not superior force by category: forecasts, local conditions, precautions, and the precise causal sequence matter. Permanent impossibility of contractual performance should not be imported as a universal requirement for an extra-contractual accident.

A defendant whose own causal negligence contributed to the injury cannot obtain complete exemption merely by pointing to an external event. In Compagnie Miron ltée c. Brott, [1979] C.A. 255, the party that negligently broke an electrical cable remained responsible even though a lawful strike delayed repair and increased the loss. The decision illustrates why an event affecting a third party's performance need not release the original wrongdoer.

If the conditions of superior force are established, art. 1470 CCQ permits complete release for the injury resulting from it, unless the defendant undertook to repair that injury. A contractual guarantee may therefore change the outcome. The defence is not a percentage discount for an accident involving bad weather.

Novus Actus Interveniens

The novus actus interveniens (new intervening cause) refers to a fact occurring after the initial fault and severing the causal link between that fault and the injury.

Conditions. The initial causal connection must cease completely and an independent event must establish a new connection to the injury. Jurisprudence considers the relative gravity of successive faults, requiring the intervening fault to be at least as serious as the earlier fault in the situations discussed. That comparison is not sufficient on its own. Where the later fault was made possible by the first or merely continued the same risk, the original causal connection may remain.

Distinction from concurrent faults. Successive faults may both cause the same injury. If they remain causally connected to it, apportionment and, where applicable, solidarity follow. The later actor's opportunity to avoid the accident does not automatically release the first actor. The defence requires proof of an actual break, not merely a more serious mistake later in the chronology.

Case illustration. In Hydro-Québec c. Girard, [1987] J.Q. no 70 (C.A.), the victim tied a plastic bag around a hanging electrical wire to warn others. The finding of a break rested on grossly imprudent intervention in an obvious electrical danger, without an immediate danger requiring that intervention. Merely approaching a wire was not the complete factual basis. The decision must not be generalized into a rule that every rescue attempt or every victim's gross fault eliminates earlier causation.

Fault of a Third Party and Solidarity (art. 1526 CCQ)

If a third party is the exclusive cause of the injury, a defendant whose conduct did not cause it may defeat the claim. If both parties' faults contributed to the same injury, art. 1526 CCQ makes the extra-contractual obligation solidary. The victim can recover the amount owed from a solidary debtor, while art. 1478 CCQ governs the internal allocation according to gravity. A recourse in contribution permits the debtor who paid more than their share to seek recovery from another responsible person.

Contributory, common, and collective fault. A contributory fault participates with another fault in causing injury; it need not be the victim's fault. A common fault is a single wrongful course of conduct involving several persons. These situations must be distinguished from the uncertainty addressed by art. 1480 CCQ. That article applies where persons participated in a collective wrongful act, or committed separate faults each capable of causing the injury, and it is impossible in either case to identify who actually caused it. Its conditions establish solidarity despite that causal uncertainty. Participation in a collective wrongful act requires a shared intention, which may be tacit; mere presence or association is insufficient.

Where two distinct faults caused distinct injuries, the common-injury basis for solidarity is absent. Equally, art. 1480 does not excuse failure to prove a wrongful act or eliminate its requirement of genuine uncertainty about the actual author. Those distinctions prevent liability from attaching indiscriminately to everyone connected with an event.

The victim and third parties. A parent's supervisory fault is not the injured child's personal fault. If another defendant is solidarily liable for the same injury, the parent's contribution does not reduce the child's claim against that defendant. Any reduction for the child's own conduct requires a personal causal fault and capacity for discernment.

Statutory immunity. Art. 1481 CCQ addresses a further situation: where several persons caused the injury and an express provision of a special statute exempts one of them from all liability, the share that would have been assigned to that person is borne equally by the other persons responsible. This redistribution must be distinguished from the ordinary allocation by gravity.

Exclusion or Limitation Notices

The Quebec legislature strictly circumscribed the possibility for a person to unilaterally escape the obligation to make reparation.

Art. 1474 CCQ: public-order limits. A person may not exclude or limit liability for material injury caused by intentional fault or gross fault. An exclusion or limitation cannot defeat reparation for bodily or moral injury (préjudice corporel ou moral), even for ordinary fault. These limits are of public order (ordre public).

Art. 1476 CCQ: unilateral notices. A simple notice (a poster or sign addressed to third parties) may not exclude or limit the obligation to make reparation for injury caused by the fault of its author. The legislature recognises, however, that such a notice may serve as a denunciation of danger (dénonciation d'un danger). A person who becomes aware of the notice is then bound to take appropriate measures for personal safety. If the person disregards the warning, that conduct may constitute a fault within the meaning of arts. 1477 and 1478 CCQ, giving rise to an apportionment of liability.

Illustration. A municipality that owns a landfill posts a sign identifying specific dangers and disclaiming all liability. An adolescent enters the site and is injured. If the municipality is found at fault for failing to fence the site adequately, the sign does not relieve it of the obligation to make reparation (art. 1476 CCQ). The sign may, however, constitute a denunciation of danger, and the adolescent's decision to ignore the warning may be taken into account in the apportionment of liability (art. 1478 CCQ).

Contractual notices. Art. 1475 CCQ concerns notice of an exclusion or limitation for non-performance of a contractual obligation. The party relying on it must prove that the other party knew of it when the contract was formed. That condition does not override art. 1474 CCQ or other applicable validity rules. A clause in an adhesion contract is not automatically a unilateral notice governed by art. 1476 CCQ.

Worked example: the icy shared passage

Factual Scenario

This example is hypothetical.

A visitor crosses a passage shared by two property owners. Water from A's negligently maintained drain freezes across the passage. B, responsible for lighting the area, has ignored a known lighting failure. The visitor sees a specific warning of ice but hurries through while looking at a telephone. Assume an extra-contractual action is available and the evidence establishes that all three faults contributed to one indivisible injury.

Practice Checklist

• Confirm that an extra-contractual action is available and identify the precise injury in dispute.
• Distinguish absence of liability from a defence or a reduction of compensation.
• Prove the victim's discernment, personal fault, and causal contribution before reducing recovery.
• Identify the risk known and freely accepted; acceptance alone does not waive recourse.
• Identify the reasonable mitigation measure omitted and quantify avoidable aggravation.
• For superior force, prove unforeseeability, irresistibility, and causal effect; check any undertaking to bear the loss.
• For an intervening event, establish a complete causal break rather than merely greater gravity.
• Distinguish established concurrent causes under arts. 1478 and 1526 CCQ from uncertain authorship under art. 1480 CCQ.
• Check whether an express statutory immunity calls for redistribution under art. 1481 CCQ.
• Distinguish contractual notices under art. 1475 CCQ from third-party notices under art. 1476 CCQ and apply art. 1474 CCQ to both bodily and moral injury.