In the event that participation of interested persons is deemed necessary by the Commission, notice will be published in the Federal Register and interested persons will then be allowed to participate in this proceeding by the submission of written data, views or arguments, with or without opportunity to present same orally.

The Commission may authorize a party to a proceeding to use depositions, written interrogatories, and discovery procedures that, to the extent practicable, are in conformity with the rules applicable in civil proceedings in the district courts of the United States.

In proceedings under this part, the Commission may by subpoena compel the attendance of witnesses and the production of books, papers, documents, and other evidence.

In proceedings under this subpart, witnesses are, unless otherwise prohibited by law, entitled to the same fees and mileage as in the courts of the United States, subject to funds being provided by appropriations Acts.

For failure to supply information ordered to be produced or compelled by subpoena in proceedings under this part, the Commission may—

(a) After notice and an opportunity for hearing, suspend tariffs of a common carrier or that common carrier's right to use the tariffs of conferences of which it is a member; or

(b) Assess a civil penalty of not more than $5,000 for each day that the information is not provided.

In proceedings under this part, when a person violates an order of the Commission or fails to comply with a subpoena, the Commission may seek enforcement by a United States district court having jurisdiction over the parties.

The Commission may, on its own motion or upon petition, postpone, discontinue, or suspend any and all actions taken by it under the provisions of this part. The Commission shall postpone, discontinue or suspend any or all such actions if the President informs the Commission that postponement, discontinuance or suspension is required for reasons of foreign policy or national security.

The Commission shall incorporate in any regulations adopted under the rules of this part a concise statement of their basis and purpose. Regulations shall be published in the Federal Register. Except where conditions warrant and for good cause, regulations promulgated under the rules of this part shall not become effective until at least 30 days after the date of publication.