17 C.F.R. § 240.14d-3 : Commodity and Securities Exchanges — SECURITIES AND EXCHANGE COMMISSION — GENERAL RULES AND REGULATIONS, SECURITIES EXCHANGE ACT OF 193 — RULES AND REGULATIONS UNDER THE SECURITIES EXCHANGE ACT OF 1934 —REGULATION 14D —3 - Filing and transmission of tender offer statement

(a) Filing and transmittal. No bidder shall make a tender offer if, after consummation thereof, such bidder would be the beneficial owner of more than 5 percent of the class of the subject company's securities for which the tender offer is made, unless as soon as practicable on the date of the commencement of the tender offer such bidder:
(1) Files with the Commission a Tender Offer Statement on Schedule TO (§ 240.14d-100 ), including all exhibits thereto;
(2) Delivers a copy of such Schedule TO, including all exhibits thereto:
(i) To the subject company at its principal executive office; and
(ii) To any other bidder, which has filed a Schedule TO with the Commission relating to a tender offer which has not yet terminated for the same class of securities of the subject company, at such bidder's principal executive office or at the address of the person authorized to receive notices and communications (which is disclosed on the cover sheet of such other bidder's Schedule TO);
(3) Gives telephonic notice of the information required by Rule 14d-6(d)(2)(i) and (ii) (§ 240.14d-6(d)(2)(i) and (ii) ) and mails by means of first class mail a copy of such Schedule TO, including all exhibits thereto:
(i) To each national securities exchange where such class of the subject company's securities is registered and listed for trading (which may be based upon information contained in the subject company's most recent Annual Report on Form 10-K (§ 249.310 of this chapter) filed with the Commission unless the bidder has reason to believe that such information is not current), which telephonic notice shall be made when practicable before the opening of each such exchange; and
(ii) To the National Association of Securities Dealers, Inc. ("NASD") if such class of the subject company's securities is authorized for quotation in the NASDAQ interdealer quotation system.
(b) Post-commencement amendments and additional materials. The bidder making the tender offer must file with the Commission:
(1) An amendment to Schedule TO (§ 240.14d-100 ) reporting promptly any material changes in the information set forth in the schedule previously filed and including copies of any additional tender offer materials as exhibits; and
(2) A final amendment to Schedule TO (§ 240.14d-100 ) reporting promptly the results of the tender offer.

Instruction to paragraph (b): A copy of any additional tender offer materials or amendment filed under this section must be sent promptly to the subject company and to any exchange and/or NASD, as required by paragraph (a) of this section, but in no event later than the date the materials are first published, sent or given to security holders.

(c) Certain announcements. Notwithstanding the provisions of paragraph (b) of this section, if the additional tender offer material or an amendment to Schedule TO discloses only the number of shares deposited to date, and/or announces an extension of the time during which shares may be tendered, then the bidder may file such tender offer material or amendment and send a copy of such tender offer material or amendment to the subject company, any exchange and/or the NASD, as required by paragraph (a) of this section, promptly after the date such tender offer material is first published or sent or given to security holders.

17 C.F.R. §240.14d-3

44 FR 70341, Dec. 6, 1979; 64 FR 61460, Nov. 10, 1999, as amended at 73 FR 977, Jan. 4, 2008; 73 FR 17814, 4/1/2008