I-539 Final-Stage Waits Rise for Six Straight Weeks, Forecast Points to 152 Days by Mid-October

The I-539 final-stage wait reached 132 days in the week of Sept. 14, up from 94 days in early August (W32) and 4 days above last week's 128-day reading. The 8-week slope is +5.2 days per week, with an R² of 0.86, meaning the linear fit accounts for 86% of the week-to-week variance over that stretch. That combination — a steep slope and a tight fit — marks this as a sustained trend rather than a single-week shift. A year ago, the same-week median was 126 days across 461 approvals, putting this week 6 days above the prior-year reading.

The 12-week trailing average sits at 114 days, so this week's reading is already 18 days above that baseline. A USCIS announcement from Aug. 14 required applicants to use new editions of Form I-539 and Form I-765, with older editions rejected starting Sept. 15. That deadline coincides with the current measurement window and may have influenced the mix of cases reaching final adjudication (USCIS's decision step), though the connection is speculative and the data does not confirm a mechanism.

SRC handled 4,877 of 6,114 approvals (80%) this week, making its trajectory the primary mechanical driver of the aggregate median. SRC's own slope is +9.7 days per week with an R² of 0.93, steeper than the national figure. SRC also carries a 40% transferred share this week, meaning roughly four in ten of its approvals involved a case that had been routed from another office at some point — compared with 0% at WAC (California Service Center) and 32% at EAC. That mix difference means a direct comparison of SRC's 102-day median against EAC's 275-day median reflects the centers' different case compositions as much as anything else. The data brief does not supply a reason for the divergence in transferred shares.

Among the smaller centers, WAC (California Service Center) processed 530 cases at a 257-day median with a 0% transferred share and a weak 8-week slope (R² = 0.10), offering no reliable directional signal. EAC handled 505 cases at 275 days with a 32% transferred share and a moderate slope (R² = 0.36). YSC (Potomac Service Center) processed 76 cases at a 174-day median with a weak slope, too small a sample for a confident trend read. LIN (Nebraska Service Center), at 126 cases and a 161-day median, is the one center showing a statistically reliable improvement, with a slope of -3.9 days per week and an R² of 0.72; case mix at LIN differs from SRC and the sample is smaller, so this should be read as a center-specific signal, not a system-wide one.

Cases that received and responded to an RFE (Request for Evidence, USCIS's standard follow-up letter asking for additional documents) cleared in a median of just 20 days this week, versus 120 days for cases that never received one. That ratio — roughly 6 to 1 in favor of the RFE-response group — triggered the rfe_fast anomaly flag. The more likely explanation is a batch effect: cases that recently had their RFE responses received are already deep in the adjudication (the USCIS case decision step), so a cluster of them resolving in the same week pulls the RFE-track median sharply downward. This does not imply that receiving an RFE leads to faster approvals in general; the wider 30-day stage data shows RFE-response cases at a median of 22 days at that stage, in line with this week's reading, but the broader non-RFE population takes far longer overall.