Regulatory reform

Regulatory impact assessment


Regulatory impact assessment (RIA) is a systemic approach to critically assessing the positive and negative effects of proposed and existing regulations and non-regulatory alternatives. As employed in OECD countries it encompasses a range of methods. It is an important element of an evidence-based approach to policy making.

OECD analysis shows that conducting RIA within an appropriate systematic framework can underpin the capacity of governments to ensure that regulations are efficient and effective in a changing and complex world. Some form of RIA has now been adopted by all OECD members, but they have all nevertheless found the successful implementation of RIA administratively and technically challenging.

This page provides links to the considerable research undertaken by the OECD on methodological issues and country experiences with the implementation of RIA and includes guidance material to improve the performance of RIA, its early integration with policy making and the promotion of more coherent regulatory policy across government.

Best practice principles for regulatory policy


Annexes to the Best Practice Principles for Regulatory Policy




Latest updates 

7 November 2022
The SME Test: Taking SMEs and entrepreneurs into account when regulating: Annex to the OECD Best Practice Principles on Regulatory Impact Assessment

6 September 2022
Regulatory policy scan of Bulgaria: Promoting a sound regulatory framework for citizen well-being and economic growth

5 April 2022
Establishing Regulatory Impact Assessment in Mauritius

19 October 2021
The OECD helps Peru’s water regulator commit to issue high-quality regulation

27 May 2021
Regulatory Impact Assessment in the Philippines

10 March 2021
Learning from Australia’s oversight of Regulatory Impact Analysis (RIA)

3 February 2021
How do laws and regulations affect competitiveness: The role for regulatory impact assessment

18 December 2020
A closer look at proportionality and threshold tests for RIA: Annex to the OECD Best Practice Principles on Regulatory Impact Assessment

3-12 November 2020
OECD supports Peru's water regulator to improve the quality of its regulation, Virtual workshop

25 February 2020
Best Practice Principles for Regulatory Policy: Regulatory Impact Assessment


Workshops and seminars

For further information, please contact Daniel Trnka, OECD Regulatory Policy Division.

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