One of the goals of the Endocrine Disruptor Screening Program (EDSP) is to screen chemicals rapidly for bioactivity in several endocrine pathways. 

EPA has partial screening results for over 1800 chemicals that have been evaluated using high throughput assays and a computational model for the estrogen receptor pathway. In the future, EPA anticipates that additional alternative methods will be available for EDSP chemical screening, based on further advancements of high throughput assays and computational models for other endocrine pathways. These methods will allow EPA to screen more chemicals in less time, involve fewer animals, and cost less for everyone.

For more information on chemical screening and testing progress, please refer to the following pages:

• EDSP Tier 1 Assessments for 52 Chemicals
• Use of High Throughput Assays and Computational Tools in the EDSP
• EDSP Estrogen Receptor Bioactivity for 1800 Chemicals
• EDSP Universe of Chemicals
• Overview of the Second List of Chemicals for Tier 1 Screening under the EDSP
• Overview of the First List of Chemicals for Tier 1 Screening under the EDSP