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Core Concepts

Effective challenge

Critical analysis by objective, informed parties who can identify a model's limitations and assumptions and produce appropriate changes. SR 11-7 introduced effective challenge as the guiding principle of model risk management; it requires the reviewer to have genuine independence, technical competence, and organizational influence to effect change.

Last updated: Last reviewed by: Model Risk Directory editorial team

How the term is used in model risk management

Critical analysis by objective, informed parties who can identify a model's limitations and assumptions and produce appropriate changes. SR 11-7 introduced effective challenge as the guiding principle of model risk management; it requires the reviewer to have genuine independence, technical competence, and organizational influence to effect change. The exact implementation varies by institution, model type, risk rating, and governing framework. Use the linked regulatory pages and buyer guides below for scope-specific requirements.

Related glossary terms

Model validationThree lines of defenseModel risk management

Guides and frameworks that use this term

GuideModel Risk ValidationModel risk validation is the independent testing of a specific model's conceptual soundness, ongoing performance, and outcomes, performed by staff or a third-party firm genuinely separate from that model's development. It is the 'effective challenge' function required under SR 26-2 and SR 11-7, distinct from broader model risk management program design.GuideModel Risk Management FrameworkA model risk management framework is the documented set of policies, roles, and processes an institution uses to identify, tier, govern, and validate its models. Under SR 26-2, a sound framework covers model development and use, independent validation, and governance and controls, scaled to the institution's size and model risk profile rather than applied uniformly.GuideSR 11-7 ComplianceSR 11-7 was formally rescinded on April 17, 2026 and replaced by the interagency guidance SR 26-2. Institutions still describing their program as 'SR 11-7 compliant' should update to reference SR 26-2, which preserves SR 11-7's core disciplines, effective challenge, independent validation, governance, while shifting to a risk-based, tailored supervisory approach.FrameworkSR 11-7SR 11-7 was the Federal Reserve's foundational 2011 guidance on model risk management, covering model development, implementation, use, validation, and governance. It was formally rescinded on April 17, 2026 and replaced by SR 26-2, though SR 11-7's core principles, including effective challenge and independent validation, carried forward into the new guidance.FrameworkSR 26-2SR 26-2, issued jointly by the Federal Reserve, OCC, and FDIC on April 17, 2026, is the current US interagency guidance on model risk management. It supersedes SR 11-7 (2011) and SR 21-8 (2021), preserving core disciplines like effective challenge and independent validation while shifting to a risk-based approach tailored to an institution's model risk profile, size, and complexity.