The applicants alleged discrimination on the basis of creed after receiving a parking ticket near their mosque during Friday prayers.
The National Council of Canadian Muslims (NCCM) filed a Request to Intervene, seeking to make submissions and cross-examine witnesses.
The respondent opposed the request, arguing it would unnecessarily prolong the hearing.
The Tribunal granted NCCM intervenor status but limited its participation to written and oral submissions, finding that allowing cross-examination would be potentially repetitive and lengthen the hearing given that the applicants were already represented by counsel.