(a) Complaint of substantial violation. Any person may file a written complaint with the Assistant Administrator alleging that a substantial violation of any regulation issued under the Motor Carrier Safety Act of 1984 is occurring or has occurred within the preceding 60 days. A substantial violation is one which could reasonably lead to, or has resulted in, serious personal injury or death. Each complaint must be signed by the complainant and must contain:
(1) The name, address, and telephone number of the person who files it;
(2) The name and address of the alleged violator and, with respect to each alleged violator, the specific provisions of the regulations that the complainant believes were violated; and
(3) A concise but complete statement of the facts relied upon to substantiate each allegation, including the date of each alleged violation.
(b) Action on complaint of substantial violation. Upon the filing of a complaint of a substantial violation under paragraph (a) of this section, the Assistant Administrator shall determine whether it is nonfrivolous and meets the requirements of paragraph (a) of this section. If the Assistant Administrator determines the complaint is nonfrivolous and meets the requirements of paragraph (a), he/she shall investigate the complaint. The complainant shall be timely notified of findings resulting from such investigation. The Assistant Administrator shall not be required to conduct separate investigations of duplicative complaints. If the Assistant Administrator determines the complaint is frivolous or does not meet the requirements of the paragraph (a), he/she shall dismiss the complaint and notify the complainant in writing of the reasons for such dismissal.
(c) Notwithstanding the provisions of section 552 of title 5, United States Code, the Assistant Administrator shall not disclose the identity of complainants unless it is determined that such disclosure is necessary to prosecute a violation. If disclosure becomes necessary, the Assistant Administrator shall take every practical means within the Assistant Administrator's authority to assure that the complainant is not subject to harassment, intimidation, disciplinary action, discrimination, or financial loss as a result of such disclosure. [50 FR 40306, Oct. 2, 1985, as amended at 70 FR 28481, May 18, 2005]