Mutual Aid Agreements for Mine Rescue


Mine rescue workers participating in a WSIB-approved Mutual Aid Agreement are considered workers of their regular employer during mine rescue operations off the premises of the regular employer.

Accident costs arising from injuries during off-premises mine rescue operations are not included for experience rating purposes.


The purpose of this policy is to outline when mine rescue workers have WSIB coverage when responding to a mine rescue operation off their regular employer's premises, and to outline the responsibilities of the regular employer.



A Mutual Aid Agreement is a formal agreement between two mining employers under which one employer provides a mine rescue team to the other employer in an emergency. A standard mine rescue team consists of five people trained to respond to emergencies (primarily to underground fires).

Signing requirement

The participating mine employers must sign the Mutual Aid Agreement, and a copy of the agreement must be submitted to the WSIB, for approval and coverage under this policy.

Rules for coverage

Mine rescue workers are covered under this policy and are considered to be in the course of their employment when responding to an emergency at the premises of the recipient employer, whether they are

  • travelling to the emergency from their home or place of regular employment
  • carrying out their duties at the emergency, or
  • returning to their regular employment or home after the emergency, using the most direct or uninterrupted route.

Employer premiums

Wages paid by the regular employer to mine rescue team members responding to an emergency under this policy are considered insurable earnings. The premiums on those earnings are paid by the regular employer.

Reporting accidents

The regular employer is responsible for completing and submitting the Employer's Report of Injury/Disease (Form 7), see 15-01-02, Employer's Initial Accident-Reporting Obligations, for more information.

To ensure the exclusion of accident costs for experience rating purposes, the regular employer identifies mine rescue accidents covered under this policy on the Form 7 as Mutual Aid Mine Rescue. The regular employer completes the rest of the form in the usual manner by providing its WSIB firm number, rate group number, etc. The employer also enters the classification unit code of the activity in which the worker is engaged with the regular employer.

Accident costs not experience rated

Accident costs resulting from injuries incurred during off-premises mine rescue operations are recorded on the regular employer's Accident Cost Statement. However, these costs are not included when calculating refunds or surcharges under the regular employer's experience rating plan.

Regular employer's obligations

If a mine rescue worker receives benefits under this policy, the regular employer is responsible for complying with the obligations related to

Application date

This policy applies to all revenue or claims decisions made on or after February 15, 2013.

Document History

This document replaces 12-04-11 dated October 12, 2004.

This document was previously published as:

12-04-11 dated May 23, 2000

12-04-11 dated December 13, 1999.


Legislative Authority

Workplace Safety and Insurance Act, 1997, as amended
Section 159(2)


#6, January 28, 2013, Page 503