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Practitioners — Lawyers · published 2026-05-28 · methodology v2.1

Meaning of yellow highlighting in MAS Notice 637 amendment PDFs

What the RLB Specialist Panel found

2. Meaning of yellow highlighting in MAS Notice 637 amendment PDFs

  • Question (paraphrased to protect IP): In MAS Notice 637 (Amendment) 2024, what do the yellow-highlighted passages signify, and will they appear in the final consolidated version of the Notice?
  • Source regulation: MAS Notice 637 — Risk Based Capital Adequacy Requirements for Banks Incorporated in Singapore (Regulator portal: https://www.mas.gov.sg)
  • What AI assistants typically say: Multiple AI tools gave similar incorrect responses, describing yellow highlighting as a generic visual aid used to draw attention to defined terms, cross-references, or items warranting special reader attention during review — or alternatively as editorial annotations explaining the nature or purpose of tracked insertions and deletions.
  • What the regulator actually says: No regulator excerpt was available for this finding. Practitioners should obtain the current amendment PDF directly from the MAS portal and review any explanatory notes or legend accompanying the document.
  • Why the AI went wrong: Both responses substitute plausible-sounding generic descriptions for the precise drafting convention actually used. Yellow highlighting in MAS amendment notices carries a specific, document-defined meaning — such as marking provisions with a different effective date, or flagging entirely new provisions — rather than the general reader-guidance or editorial-annotation function the AI tools described. Neither response was grounded in the actual document.
  • Cited source(s):
Impact for this audience

A Lawyer reviewing MAS Notice 637 (Amendment) 2024 to advise a client on which provisions are operative and from when may use AI assistance to decode the document's formatting conventions. If the AI's generic description of yellow highlighting is accepted, the Lawyer may miscommunicate to the client which provisions have a deferred effective date or which provisions are entirely new obligations — leading to premature or delayed compliance steps. Where those steps relate to capital adequacy reporting or capital instrument eligibility, the consequence for the client can include MAS-reportable deficiencies; for the Lawyer, the consequence is a flawed legal opinion based on a misread document.

References — raw findings (per AI model)
This finding also affects
← Previous finding Finding 1. Separate notice designation for financial holding companies under MAS Notice 637 Next finding → Finding 3. Scope and exclusions of Annex 4D in consolidated MAS Notice 637
Cite this finding

Each finding has a stable Citation ID (RLB-F-… for aggregated case-study findings, RLB-H-… for raw per-model hallucinations) — like a DOI, the ID always resolves to the canonical finding even if URLs change.

Plain text 
RegLeg Specialist Panel (2026). "Meaning of yellow highlighting in MAS Notice 637 amendment PDFs — Practitioners — Lawyers." Citation ID: . RegLegBrief AI Hallucination Research, published 2026-05-28. https://reglegbrief.com/audiences/practitioners/SG/lawyers/finding/q-NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025-v1-012/
APA 7th edition 
RegLeg Specialist Panel. (2026). Meaning of yellow highlighting in MAS Notice 637 amendment PDFs [Hallucination finding ]. RegLegBrief AI Hallucination Research. https://reglegbrief.com/audiences/practitioners/SG/lawyers/finding/q-NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025-v1-012/
Bluebook / OSCOLA (US + UK legal) 
RegLeg Specialist Panel, Meaning of yellow highlighting in MAS Notice 637 amendment PDFs [], RegLegBrief AI Hallucination Research (May 28, 2026), https://reglegbrief.com/audiences/practitioners/SG/lawyers/finding/q-NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025-v1-012/.
BibTeX 
@misc{reglegbrief_,
  author    = {RegLeg Specialist Panel},
  title     = {Meaning of yellow highlighting in MAS Notice 637 amendment PDFs},
  year      = {2026},
  publisher = {RegLegBrief AI Hallucination Research},
  note      = {Hallucination finding Citation ID: },
  url       = {https://reglegbrief.com/audiences/practitioners/SG/lawyers/finding/q-NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025-v1-012/}
}
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