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Dataset Viewer
The dataset viewer is not available for this split.
Cannot extract the features (columns) for the split 'train' of the config 'default' of the dataset.
Error code: FeaturesError
Exception: ArrowInvalid
Message: Schema at index 1 was different:
snapshot_date: string
analyst_review_queue: string
audit_review_queue: string
reconsideration_queue: string
avg_processing_days: int64
avg_processing_month: string
scraped_at: string
source: string
vs
form_name: string
office_code: string
form_subtype: string
subtype_info: string
publication_date: string
range_lower_months: double
range_upper_months: double
range_lower_raw: double
range_lower_unit: string
range_upper_raw: double
range_upper_unit: string
service_request_date: string
snapshot_date: string
source: string
Traceback: Traceback (most recent call last):
File "/src/services/worker/src/worker/job_runners/split/first_rows.py", line 246, in compute_first_rows_from_streaming_response
iterable_dataset = iterable_dataset._resolve_features()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/iterable_dataset.py", line 4196, in _resolve_features
features = _infer_features_from_batch(self.with_format(None)._head())
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/iterable_dataset.py", line 2533, in _head
return next(iter(self.iter(batch_size=n)))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/iterable_dataset.py", line 2711, in iter
for key, pa_table in ex_iterable.iter_arrow():
^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/iterable_dataset.py", line 2249, in _iter_arrow
yield from self.ex_iterable._iter_arrow()
File "/usr/local/lib/python3.12/site-packages/datasets/iterable_dataset.py", line 538, in _iter_arrow
yield new_key, pa.Table.from_batches(chunks_buffer)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "pyarrow/table.pxi", line 5039, in pyarrow.lib.Table.from_batches
File "pyarrow/error.pxi", line 155, in pyarrow.lib.pyarrow_internal_check_status
File "pyarrow/error.pxi", line 92, in pyarrow.lib.check_status
pyarrow.lib.ArrowInvalid: Schema at index 1 was different:
snapshot_date: string
analyst_review_queue: string
audit_review_queue: string
reconsideration_queue: string
avg_processing_days: int64
avg_processing_month: string
scraped_at: string
source: string
vs
form_name: string
office_code: string
form_subtype: string
subtype_info: string
publication_date: string
range_lower_months: double
range_upper_months: double
range_lower_raw: double
range_lower_unit: string
range_upper_raw: double
range_upper_unit: string
service_request_date: string
snapshot_date: string
source: stringNeed help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
USCIS Immigration Processing Times
A structured dataset of US immigration processing time data covering 44,000+ unique records across 1,450+ daily snapshots spanning 4+ years (2022-03-14 to present). Covers 44 USCIS forms plus DOL PERM and 15 visa bulletin categories, with per-office granularity across 100+ USCIS field offices.
Sources
- US Citizenship and Immigration Services (USCIS)
- US Department of Labor — Foreign Labor Application Gateway (DOL FLAG)
- US Department of State — Visa Bulletin
Format
JSON and CSV. Full data catalog and API: https://immigrationtimes.org/data/
License
CC BY 4.0. Cite as: ImmigrationTimes.org, USCIS Immigration Processing Times dataset.
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