What can the Commission make recommendations about?

The Commission has the authority to make recommendations regarding changes in legislation, including the Act or the building code. This power is significant because the Act and the building code govern the frameworks within which all construction and design practices operate in a specific jurisdiction. By making recommendations on these foundational documents, the Commission can address broader systemic issues that affect multiple aspects of construction and building safety.

The relevance of the other options lies in the fact that they are more limited in scope. Changes in building design and construction materials can be essential but are generally part of the guidance provided within the framework of the Act or the building code rather than standalone recommendations. Focusing only on past appeals restricts the Commission's ability to address current trends and emerging issues in the field, making it less effective in its advisory role. Thus, the ability to propose changes to the Act or building code empowers the Commission to influence comprehensive reform and safety improvement within the industry.