To obtain experimental time at 12-BM, all users must submit a General User Proposal (GUP).
Standard proposals must be submitted prior to the run cycle deadlines (three times per year). Please check the GUP calendar for Proposal Deadlines and Related Meetings schedule.
Note: at least one member of your research team must be a registered APS user. A valid APS user badge number and password is required to access the system and submit a proposal for beamtime.
For a new APS user, the step by step guide is here.

Prepare your ESAF 7-10 days before your beamtime (to give APS enough time to review/approve)
Include yourself as Remote User and beamline staffs (Sungsik Lee and Benjamin Reinhart) as On-Site Spokesperson
List all samples and chemicals that will be used at the APS. (See the Policy for Identification)
Include the CAS number from appropriate SDS.
Check ALL appropriate boxes regarding known hazards.

Please submit the sample holder request form at least two weeks before your schedulded beamtime.
Because of handling hazardous materials, all mail-in/remote samples should be sealed and mounted on standard sample holders provided by the beamline staff.
Do not send unmounted samples!!
Mount your samples in sample holder using washer or capillary (detail in Sample preparation part)
Provide adequate amount of sample
Each sample holder has an unique QR code linked with data entry form. You can try with test-link.
Provide sample names/information using the link
Double check for accuracy, and hit Submit
You can resubmit the form. It will overwrite the existing input file.
Arrange for samples to arrive at least 2 days before assigned beamtime (please note: on-site delivery is slow)
Clearly indicate on the outside of the box whether there is any special storage requirements for your samples (keep frozen, keep upright, fragile glass)