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Last Updated  May 23, 2017

The policies governing the JWST Director's Discretionary Early Release Science (DD ERS) program in Cycle 1 are established in this Call for Proposals.

Late Breaking News

None at this time (May 19, 2017)

About this Document

We invite scientists to participate in the James Webb Space Telescope (JWST) Director's Discretionary Early Release Science (DD ERS) program. We anticipate allocating up to 500 hours to support up to 15 teams in providing early access to substantive, representative datasets to enable full scientific exploitation in Cycle 2 and beyond.

This document establishes the goals, requirements, policies for the JWST Director's Discretionary Early Release Science (DD ERS) program. Notices of Intent (NoI) to propose submissions are requiredonly teams who have submitted NoIs are permitted to submit proposals. Proposers are encouraged to follow the JWST DD ERS Proposal Checklist in preparing to submit their JWST DD ERS Proposal.

Important Dates

The DD ERS Proposal Deadline is Friday, August 18, 2017, 8pm EDTOnly teams who have submitted Notices of Intent (NoI) to propose by the March 3, 2017 deadline are permitted to submit proposals in response to this Call. 

Who's Responsible

Members of the Science Mission Office at STScI are responsible for the oversight of the JWST science program selection process. The members involved include Neill Reid (Associate Director for Science and Head of the Science Mission Office), Amaya Moro-Martin, Louis-Gregory Strolger, and Technical Manager Brett Blacker.

Where to Get Help

Submit questions to the JWST helpdesk at  Consult JWST documentation at, and see for additional tools and resources. 


Next: JWST DD ERS Proposal Checklist

Science Justification Templates

Templates for JWST DD ERS Proposal PDF attachments: