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The NLRB reopened from shutdown status on November 13, 2025. Due dates to file or serve most documents were tolled during the period of the shutdown, although due dates cannot be tolled for filing and service of unfair labor practice charges, applications for awards of fees and other expenses under the Equal Access to Justice Act, and certain representation petitions. For documents where tolling applies, the terms are that for each day on which the Agency’s offices were closed for all or any portion of the day, one day is added to the time for filing or service of the document. If the new due date falls on a weekend or holiday, the new due date will be moved to the next business day. For example, if the original due date was October 7, 2025 and the shutdown lasted 43 days, the revised due date is November 19, 2025. See chart for revised due dates.

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Case

US Steel

 
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Case Number: 18-CA-326274

Date Filed: 09/15/2023

Status: Open

Location: Mountain Iron, MN

Region Assigned: Region 18, Minneapolis, Minnesota



Docket Activity


Date sort ascending Document Issued/Filed By
08/20/2025 Deferral Status Check* NLRB - GC
11/13/2023 Collyer Deferral Letter* NLRB - GC
11/07/2023 Signed Amended Charge Against Employer* Charging Party
09/15/2023 Signed Charge Against Employer* Charging Party

The Docket Activity list does not reflect all actions in this case.

* This document may require redactions before it can be viewed. To obtain a copy, please file a request through our FOIA Branch.

Related Documents


Related Documents data is not available.

Allegations


  • 8(a)(5) Repudiation/Modification of Contract [Sec 8(d)/Unilateral Changes]
  • 8(a)(5) Refusal to Bargain/Bad Faith Bargaining (incl'g surface bargaining/direct dealing)

Participants


Participant Address Phone
Charged Party / Respondent
Legal Representative
Duff, Michael
United States Steel Corporation
600 Grant Street, 18th Floor
Pittsburgh, PA
15219-2757
(412)433-2899
 
Charging Party
Additional Service
United Steelworkers Local 1938
Eveleth, MN
55734
 
Charged Party / Respondent
Employer
US Steel
Mountain Iron, MN
55768
 
Charging Party
Union
United Steelworkers of America, Local 1938
Virginia, MN
55792
 

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