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A responsible-investment policy is meant to guide decisions and action—not just state values. In practice, it should define what the institution covers, who is accountable, how it identifies risks and impacts, what it does to prevent or mitigate harm, and how it tracks and explains its performance. The exact legal duties depend on the jurisdiction and activity; voluntary frameworks and guidance have different force and coverage.

What does “require” mean?

There is no single responsible-investment rule that applies in the same way to every bank and fund manager. Three kinds of obligation are often discussed together, but they are not interchangeable:

  • Law and regulation: A binding duty may apply to a particular institution, activity, or jurisdiction. Its scope must be determined from the relevant local rules.
  • Signatory commitments: Institutions that join a voluntary framework commit to its requirements. Those commitments apply to signatories, not automatically to every institution in the sector.
  • Guidance: Standards such as the OECD’s responsible-business-conduct guidance describe expected due-diligence practices. Guidance helps institutions put standards into operation, but it is not by itself a universal law.

For asset owners and investment managers eligible for its annual reporting process, the Principles for Responsible Investment (PRI) identifies three minimum expectations: a responsible-investment policy, clear senior-level oversight, and staff responsible for putting the policy into practice. These are PRI signatory expectations, not a rule that covers all funds or managers.

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For banks, the United Nations Environment Programme Finance Initiative’s Principles for Responsible Banking (PRB) are a voluntary framework. A bank may become a signatory through a CEO-signed commitment and UNEP FI membership; signatories are expected to show discernible progress toward full implementation.

What should a working policy put in place?

A useful policy connects a written commitment to an operating process. The details vary by institution, but the implementation chain should make the following questions answerable.

1. Who owns the policy?

The policy should name the standards and commitments the institution applies, identify senior-level oversight, and assign staff responsibility for implementation. For PRI signatories, oversight and responsible staff are explicit minimum expectations. Without named owners, a commitment can remain detached from day-to-day decisions.

2. What is covered, and how are impacts prioritized?

The institution should state which activities and relationships fall within scope. Depending on its business, that may include operations, products and services, portfolio holdings, asset classes, sectors, geography, clients, transactions, subsidiaries, and business relationships. Scope matters: a manager’s investment portfolio and a bank’s lending, underwriting, and wider business do not present the same set of decisions.

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OECD due-diligence guidance calls for risk-based assessment of actual and potential adverse effects on people and the environment. That means considering where impacts may occur and how serious they may be, rather than relying only on a broad label such as “ESG.” For climate, OECD investor guidance calls for assessment at portfolio, asset, asset-class, and sector levels.

3. How does the institution turn findings into decisions?

The method should fit the institution’s role and influence. An investment manager may integrate sustainability and governance factors into analysis and security selection, apply positive or negative screens, invest thematically, or combine these approaches. Where appropriate to its holdings and influence, it may also engage investee companies and use ownership and stewardship practices.

A bank needs processes suited to its business, portfolio, and transactions. Lending, underwriting, and project or asset finance require due diligence adapted to those activities. A policy should make clear how assessment affects decisions; listing a method without explaining how it is used offers little insight into implementation.

4. What happens when a risk or adverse impact is identified?

OECD guidance puts prevention first: institutions should aim to prevent adverse impacts and, when prevention is not possible, mitigate or address them. For investors, available tools can include engagement, active ownership, stewardship, and portfolio allocation. In project and asset finance, OECD guidance highlights stakeholder engagement, reporting, and remediation.

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A policy is more informative when it explains how the institution will respond if prevention fails, including how it escalates concerns and addresses impacts. The response depends on the institution’s role, the activity, and its relationship to the impact; a policy should not imply that every adverse impact can be prevented or resolved by the same measure.

5. How will progress be measured and explained?

Institutions should track both implementation and results: whether they are following their policy and meeting their targets, and what investee companies or clients are doing to prevent or mitigate impacts. They should communicate how relevant risks and impacts are managed to stakeholders. A published commitment alone does not establish that measures were carried out or that they worked.

How do the main frameworks differ?

Framework Who it addresses What its emphasis means in practice
PRI responsible investment and signatory requirements Asset owners and investment managers, especially signatories eligible for annual reporting A written policy, senior oversight, and staff responsible for implementation; investment integration, screening, thematic investment, and stewardship.
OECD responsible-business-conduct due diligence Institutional investors, lenders, underwriters, and other enterprises covered by the relevant guidance Risk-based, ongoing due diligence to identify, prevent, mitigate, track, and communicate adverse impacts on people and the environment.
UNEP FI Principles for Responsible Banking Signatory banks Institution-wide implementation across strategy, portfolio, and transactions, including assessment, strategy, and action on climate, nature, human rights, and healthy and inclusive economies.

The OECD Council Recommendation describes due diligence as ongoing and responsive, risk-based, suited to an enterprise’s circumstances, and informed by meaningful stakeholder engagement. The OECD’s financial-sector guidance applies that approach to the sector’s commercial and legal context.

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How can you assess a real policy?

Compare policies by what they commit the institution to do, not by the title of the document or the presence of an ESG label. These checks help reveal whether a policy has an operational design:

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  • Scope: Does it identify the assets, lending, underwriting, transactions, subsidiaries, and business relationships it covers?
  • Prioritization: Does it explain how the institution decides which impacts matter and where to focus due diligence?
  • Methods: Does it describe the use of analysis, screening, engagement, allocation, or transaction-level due diligence—and how findings influence decisions?
  • Governance: Does it identify accountable senior oversight and the staff who execute the policy?
  • Response: Does it describe prevention, mitigation, escalation, stakeholder engagement, or remediation when relevant?
  • Measurement and transparency: Are there targets, progress measures, results, and reporting on how risks and impacts are managed?

These checks distinguish a policy’s stated intent from evidence of execution. They also help show whether a manager’s investment approach or a bank’s institution-wide framework is being applied to the activities that matter.

What evidence can—and can’t—show

PRI’s What is responsible investment?, updated 28 April 2026, reports that around 75% of signatories explicitly link their responsible-investment activities to fiduciary duties in their policies, based on PRI’s 2025 reporting data. That figure describes what signatories report in policies; it does not establish the quality of implementation or the outcomes achieved.

The United Nations Environment Programme’s Principles for Responsible Banking 2025 Progress Report, published 15 October 2025, describes data and analysis covering more than 350 banks in over 85 countries, representing more than 50% of global banking assets. That is a measure of the report’s stated coverage, not evidence that every bank in the sector follows the Principles.

Information can also be incomplete or uneven. The OECD’s Due diligence essentials for responsible banking and capital markets, published 6 April 2026, notes that only around 5,000–10,000 of an estimated 80,000 multinational companies publish environmental and social performance reports. It identifies information deficits and greenwashing or unsubstantiated sustainability claims as challenges. As a result, a policy assessment should distinguish between an institution’s own commitments, evidence it can obtain about companies and clients, and demonstrated outcomes.

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Finally, responsible investment is broader than climate action alone. The frameworks discussed here also address environmental and social impacts, including human rights; the relevant focus and methods depend on the institution and the impacts it identifies.

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