ISC Modernizing GIS and Plan Submissions Online (PSO) Platform Registrars’, Directors' and Controller's Orders Regarding the Canada Post Service Disruption ISC locations are open to the public for in-person customer service by appointment only. Click here to make an appointment and for more information. Looking for Corporate Registry? Login here. Please be advised that due to scheduled maintenance, ISC Online Services will be unavailable Saturday, May 31, 2025 at 5:00p.m. to 11:00p.m. Please be advised that due to scheduled maintenance, ISC Online Services will be unavailable Saturday, June 14, 2025 at 7:00a.m. to Monday, June 16 at 8:00a.m. Further details can be found here: ISC Modernizing GIS and Plan Submissions Online (PSO) Platform