Human Subjects Approval
Human Subjects Approval is done to protect the rights and welfare of the human subjects in a research project.
All impact evaluations must be fully compliant with both local and international Institutional Review Boards (IRB). Local IRB approvals vary by country; research local regulations when the impact evaluation is designed.
All researchers should be certified in conducting ethical research on human subjects.
Where to seek IRB approval
International IRB approvals: The World Bank does not have an IRB. Typically, IRB approval is sought from partner academic / research organizations (e.g. universities, Innovation for Poverty Action ).
Where to seek Human Subjects Research certification
The National Institute for Health (NIH) offers a free course on "Protecting Human Research Participants". 
The Collaborative Institutional Training Initiative (CITI) offers a course on 'Human Subjects Research' 
Who needs to be included in ethics certification?
All members of the research team who will manage surveys and work with personally identified data must complete training on conducting research with human subjects. All surveys require informed consent from every respondent.
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MIT's Committee on the Use of Humans as Experimental Subjects (COUHES) offers examples of IRB applications, informed consent, and authorization forms: http://couhes.mit.edu/forms-templates