Mandate

The National Model Codes Committee (NMCC) on Harmonization of Alteration of Existing Buildings will expand the set of provisions specific to alteration of existing buildings (AEB) in Part 10 of the NBC, building on provincial/territorial provisions where possible and where applicable, integration into the framework used in the National Model Codes as described below and in accordance with the Canadian Board for Harmonized Construction Codes (CBHCC) approved work plan.

Note: the breakdown of mandates shown below does not necessarily reflect the recommended task groups and working groups being planned.

  • Recommend code changes to integrate requirements on alterations to existing buildings from provincial and territorial jurisdictions in the following areas considering the impact on published commentary and user’s guides:
    • fire protection,
    • accessibility,
    • egress,
    • change of use and occupancy,
    • structural and earthquake design,
    • housing and small buildings.
  • Identify any harmonization concerns and seek direction from CBHCC.

The NMCC is established by, and reports to, the CBHCC. The NMCC exists until the completion of its mandate or as otherwise directed by the CBHCC.

The NMCC will comply with the Operating Procedures of the Canadian Board for Harmonized Construction Codes.

Responsibilities

In accordance with the mandate described above:

  • develop proposed code changes for consideration for public review by the CBHCC;
    • in developing proposed code changes, consider:
      • harmonization with provincial/territorial variations where possible, if multiple provincial/territorial variations exist seek direction from the CBHCC;
      • code change requests forwarded by the CBHCC;
      • new and existing standards and guidelines; and
      • implications on other code requirements;
    • in developing proposed code changes, identify:
      • impacts of the proposed code changes; and
      • enforcement implications of the proposed code changes;
  • in consideration of public review comments received, recommend code changes for publication, for consideration by the CBHCC;
  • identify where research is needed to support the mandate and support coordination efforts;
  • identify opportunities for coordination with standard development and support coordination;
  • support development of material for the relevant user’s guides and commentaries, where applicable;
  • prepare a final report outlining a brief summary of the deliberations and considerations that led to the recommendation including any outstanding unresolved issues or concerns; and
  • through the Chair:
    • monitor progress against the approved CBHCC work plan and provide regular progress updates to the CBHCC; and
    • participate on the Standing Codes Coordination Committee, to ensure that there are no overlaps with, or conflicts between, the work being developed and that of other committees.