Occupational Health and Safety rules have been amended to include additional forms of asbestos to be reported and to update required information.
A law making asbestos reporting mandatory for Crown corporations, school districts, health regions and provincial government buildings was enacted last November.
Building owners have to submit information about the presence of asbestos to the registry.
Owners who have already provided information will have to review the changes to the rules and update their submissions if needed.
Compliance and enforcement are to come into effect for all asbestos- related activities on June 1.