29 CFR 1982.103 - Filing of retaliation complaints.
(a) Who may file. An employee who believes that he or she has been retaliated against by an employer in violation of NTSSA or FRSA may file, or have filed by any person on the employee's behalf, a complaint alleging such retaliation.
(b) Nature of filing. No particular form of complaint is required. A complaint may be filed orally or in writing. Oral complaints will be reduced to writing by OSHA. If a complainant is unable to file the complaint in English, OSHA will accept the complaint in any language.
(c) Place of filing. The complaint should be filed with the OSHA Area Director responsible for enforcement activities in the geographical area where the employee resides or was employed, but may be filed with any OSHA officer or employee. Addresses and telephone numbers for these officials are set forth in local directories and at the following Internet address: http://www.osha.gov.
(d) Time for Filing. Within 180 days after an alleged violation of NTSSA or FRSA occurs, an employee who believes that he or she has been retaliated against in violation of NTSSA or FRSA may file, or have filed by any person on the employee's behalf, a complaint alleging such retaliation. The date of the postmark, facsimile transmittal, e-mail communication, telephone call, hand-delivery, delivery to a third-party commercial carrier, or in-person filing at an OSHA office will be considered the date of filing. The time for filing a complaint may be tolled for reasons warranted by applicable case law.