1. G20/OECD. (2015). G20/OECD Principles of Corporate Governance. OECD Publishing, Paris.
Section VI.D, Page 47: "The board is... ultimately responsible for overseeing the risk management system... While boards are also well advised to establish specialised committees to support the full board in performing its functions... the board remains collectively responsible for the work of its committees." This establishes the board's ultimate responsibility, which it must fulfill directly if a committee is not in place.
2. Financial Reporting Council (FRC). (2018). The UK Corporate Governance Code.
Application Section, Page 3: "The Code should be applied proportionately. Smaller companies... may judge that some of the provisions are disproportionate or less relevant in their case." This explicitly sanctions the tailoring of governance structures, such as the formation of committees, based on proportionality.
3. Rock Center for Corporate Governance at Stanford University. (2017). On the Radar: Proportionality in Corporate Governance. Closer Look Series: Topics, Issues and Controversies in Corporate Governance.
Section: Proportionality in Practice, Paragraph 3: The publication discusses how proportionality allows for flexibility, noting that in smaller entities, "the full board may be able to handle tasks typically delegated to committees, such as risk oversight or compensation setting, without the need for a separate standing committee."