General User Proposal Call
Run Cycle 2026-3
Submission Deadline: Wednesday, June 24, 2026, 14:00 (2:00 p.m.) Chicago time
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The following proposal calls are now open and accepting submissions for the 2026-3 run cycle (September - December 2026):
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Standard General User
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Macromolecular Crystallography
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eBERlight - Macromolecular Crystallography and General User
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Resource Staff (includes CAT and APS staff)
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CAT Member
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Partner User (PUP)
Follow-on experiment time requests (ETRs) for previously submitted proposals are also being accepted. For submission instructions, check out this Knowledge Article in the UPS.
Visit the APS Beamline Directory for information on which beamlines are operational and accepting general user proposals.
CRITICAL INFORMATION
Important Updates and Reminders
UPS: Time Zones and a 24-Hour Clock
- The UPS has built-in customizable time zones. Head to your UPS profile to select your appropriate time zone. All dates and times displayed in the system will update accordingly. If you do not update your time zone, it will default to Pacific time.
- The UPS displays all times using a 24-hour clock. For example, a 2:00 p.m. deadline in Chicago (Central time) will display as 14:00.
Proposal Submission Deadline
- All proposal calls will now have a deadline of Wednesday at 14:00 (2:00 p.m.) Chicago time (Central time). This change will help the APS User Office better serve the user community by being available for administrative support at the time of the deadline.
- The submission deadline for the 2026-3 proposal call is Wednesday, June 24, by 14:00 (2:00 p.m.) Chicago time.
Proposal Review Panels (PRPs) and Scoring
- Part of the proposal submission process is to select an appropriate PRP to evaluate and score your proposal. Please review the PRP descriptions to ensure that you are requesting the most appropriate panel for your science.
- Scores are calculated using a weighted rubric. The score ranges in UPS will be different than historic score ranges in the former Beam Time Access System.
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