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Submit 300A Data Before OSHA 300/301 Case Data

The ITA needs the matching 300A establishment data before processing 300/301 case details.

What this means

For establishments that must submit case data, OSHA expects the corresponding 300A establishment summary data to be present before related 300/301 case data can process.

Why this happens

  • The filer uploaded 300/301 case data first.
  • The 300A upload failed but the case-data upload was attempted anyway.
  • The case-data file references an establishment that has not been accepted.
  • A multi-establishment filer submitted files out of order.

How to fix it manually

  • Submit and confirm the 300A data first.
  • Resolve any 300A errors before uploading 300/301 data.
  • Make sure establishment names match across files.
  • Then validate and upload the 300/301 case-data CSV.

How ITAReady helps

ITA Ready validates both 300A and 300/301 files so you can resolve blockers before upload and keep establishment names consistent.

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Related errors

Resolve OSHA ITA Establishment Name Mismatch ErrorsHow to Fix "Sum of G-J Must Equal M1-M6"

Related guides

How to Submit OSHA 300 and 301 Case Data Through ITAHow to Upload OSHA ITA CSV Files for Multiple Establishments

Fix the file before you upload again

ITA Ready checks common OSHA ITA formatting and validation issues, explains them in plain English, and helps you get to a corrected export faster.

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