In a work assignment dispute under section 99 of the Labour Relations Act, 1995, the Ontario Labour Relations Board was asked to make a preliminary sector determination regarding the carpentry portion of concrete forming construction at the Lester B. Pearson International Airport's Central De-Icing Facility.
The work involved underground vaults, holding tanks, and the foundation and above ground base for fresh Glycol tanks.
Applying an end-use analysis, the Board determined that the construction of the underground vaults and holding tanks, which manage effluent without changing its composition, falls within the sewers and watermains sector.
However, the construction of the foundation and above ground base for the fresh Glycol tanks, which are used for the commercial activity of applying fresh Glycol to aircraft, falls within the industrial, commercial and institutional (ICI) sector.