Scope and exclusions of Annex 4D under MAS Notice 637

1. Scope and exclusions of Annex 4D under MAS Notice 637

• Question (paraphrased to protect IP): What does Annex 4D of the consolidated MAS Notice 637 cover, and what category of items does it explicitly exclude from its scope?
• Source regulation: MAS Notice 637 — Notice to Banks: Capital Adequacy (Regulator portal: https://www.mas.gov.sg)
• What AI assistants typically say: The AI described Annex 4D as setting out credit conversion factors for off-balance sheet items in the context of the leverage ratio framework, while simultaneously noting in a caveat that other search results had pointed toward the standardised approach credit risk framework instead — effectively flagging its own primary answer as potentially incorrect.
• What the regulator actually says: No regulator excerpt was available for verification at the time of testing; the MAS Notice 637 text, including Annex 4D, is published on the MAS portal at https://www.mas.gov.sg.
• Why the AI went wrong: The AI appears to have inferred the content of Annex 4D from framework structure and general Basel III conventions rather than retrieving the actual annex text, and its self-contradicting caveat confirms it lacked a reliable source. Presenting an uncertain inference as a primary answer — even with a buried qualification — creates a meaningful risk that a reader accepts the opening framing without registering the caveat.
• Cited source(s):