29 U.S.C. § 162 : US Code - Section 162: Offenses and penalties

Search 29 U.S.C. § 162 : US Code - Section 162: Offenses and penalties

Any person who shall willfully resist, prevent, impede, or
interfere with any member of the Board or any of its agents or
agencies in the performance of duties pursuant to this subchapter
shall be punished by a fine of not more than $5,000 or by
imprisonment for not more than one year, or both.