Section #
Effective date


Policy Purpose

The date of accident determines which workers compensation legislation applies to a claim. The Workers Compensation Act (Act) that is in force on the date of accident is the Act that applies to that claim, even if the Act has been repealed. The Act will determine the type and amount of compensation payable to injured workers and their dependants.

Many injured workers return to work and then subsequently discover that they have not recovered from their original injury or illness. They suffer an increase in permanent impairment or relapse of their injury that result in a loss of earning capacity that arises from the original compensable injury or illness. In these situations, the worker has experienced a recurrence.

Where a recurrence has occurred, this policy establishes criteria to determine whether a worker’s WCB benefits should be recalculated. The policy first distinguishes between a new and separate accident and the recurring effects of a previous injury or illness. It then sets out a test that determines whether a worker's benefits should be recalculated.

In some circumstances, the WCB may remove all or a portion of the claim costs related to a recurrence from the accident employer’s claim costs experience.


Previous policy versions
January 1, 2006 to December 31, 2021
  • This policy applies to decisions between the above dates made on accidents which occurred on or after 1992. [This policy is numbered as and titled Recurring Effects of Injuries and Illness (Recurrences). It was rescinded on January 1, 2022] Recurring Effects of Injuries and Illnesses (Recurrences) Ja..__2.pdf