29 CFR § 102.10
Where to file
July 28, 2023
§ 102.10 Where to file.
Except as provided in § 102.33, a charge must be filed with the Regional Director for the Region in which the alleged unfair labor practice has occurred or is occurring. A charge alleging that an unfair labor practice has occurred or is occurring in two or more Regions may be filed with the Regional Director for any of those Regions.