9. Where various kinds of activities are carried on by an employer, the Commission classifies the employer in more than one unit if(1) more than one unit exists for those activities;
(2) no unit exists which covers all of the activities; and
(3) subject to the special rule provided under Schedule 1, at least one worker, other than an auxiliary worker, assigned to one of the employer’s activities covered by a unit, is not substantially and simultaneously exposed to risks of employment injury from another of the employer’s activities.
For the purposes of the first paragraph, the support activities for an activity covered by a unit do not constitute various kinds of activities.
If the employer does not meet the condition set out in subparagraph 3 of the first paragraph, the Commission classifies the employer in the unit for which the rate of assessment is the highest among those that correspond to the activities carried on by the employer.
Decision 2010-11-18, s. 9.