NIH Office of Intramural Research

Advancing Diversity and Inclusion
Our goal is to cultivate a workforce that better reflects the diversity of the U.S. population itself in order to most efficiently pursue the NIH mission. See how we’re doing it and more.

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Principal Investigators
Approximately 1,200 Principal Investigators (PIs) conduct biomedical or behavioral research within the Intramural Research Program (IRP).

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Sourcebook

The NIH intramural ‘sourcebook’ is a compendium of policies and resources for the NIH scientific research community. Direct links to the most widely used resources are below.

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The NIH Director’s Wednesday Afternoon Lecture Series (WALS) is the highest-profile lecture program at the NIH. Lectures occur on most Wednesdays from September through June and begin at 2 p.m. ET, except where noted. This season’s lectures will be held in Lipsett Amphitheater on the NIH Bethesda campus.