The Breast Cancer and the Environment Research Program (BCERP) is a joint effort co-funded by the National Institute of Environmental Health Sciences (NIEHS) and the National Cancer Institute. The BCERP supports a multidisciplinary network of scientists, clinicians, and community partners to examine the effects of environmental exposures that may predispose a woman to breast cancer throughout her life.

BCERP has several complementary components. One component enables continued and focused epidemiologic research on puberty in young girls. Another component affords greater flexibility to broader multidisciplinary teams of investigators to examine other windows of susceptibility that could be informative, especially in light of novel findings of the effects of diet, hormone replacement therapy, and long-term exposure to agents such as endocrine disruptors in adults, as well as children.