FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December 2006 NORDIC AMERICAN TANKER SHIPPING LIMITED (Translation of registrant's name into English) LOM Building 27 Reid Street Hamilton, HM 11 Bermuda (Address of principal executive offices) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F. Form 20-F [ X ] Form 40-F [ ] Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ___ Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)7: ___ Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. Yes [ ] No [ X ] If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): ________. INFORMATION CONTAINED IN THIS FORM 6-K REPORT Attached hereto as Exhibit 1 is a press release issued by Nordic American Tanker Shipping Limited (the "Company") on December 21, 2006 announcing the Company's updated financial calendar. Exhibit 1 [GRAPHIC OMITTED] Nordic American Tanker Shipping Ltd. (NYSE:NAT) Updated Financial Calendar Hamilton, Bermuda, December 21, 2006. Nordic American Tanker Shipping Limited (the "Company") today announced that it expects to issue its fourth quarter earnings and dividend release on February 14, 2007, before the opening of trading. The record date for the fourth quarter dividend is expected to be February 22, 2007, and the payment date is expected to be March 1, 2007. Contacts: Scandic American Shipping Ltd Manager for: Nordic American Tanker Shipping Ltd. P.O Box 56, 3201 Sandefjord, Norway Tel: + 47 33 42 73 00 E-mail: nat@scandicamerican.com ----------------------- Web-site: www.nat.bm Rolf Amundsen, Investor Relations Nordic American Tanker Shipping Ltd. Tel: +1 800 601 9079 or + 47 908 26 906 Herbj0rn Hansson, Chairman & CEO Nordic American Tanker Shipping Ltd. Tel: +1 866 805 9504 or + 47 901 46 291 Gary Wolfe Seward & Kissel LLP, New York, USA Tel: +1 212 574 1223 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. NORDIC AMERICAN TANKER SHIPPING LIMITED (registrant) Dated: December 28, 2006 By: /s/ Herbj0rn Hansson -------------------- Herbj0rn Hansson Chairman, Chief Executive Officer and President SK 01318 0002 734600