SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K



                Current Report Pursuant to Section 13 or 15(d) of
                           the Securities Act of 1934



         Date of Report (Date of earliest event reported): JULY 24, 2003



                                TC PIPELINES, LP
             (Exact name of registrant as specified in its charter)



          DELAWARE                     000-26091                 52-2135448
(State or other jurisdiction          (Commission             (I.R.S. Employer
      of incorporation)               File Number)           Identification No.)


          110 TURNPIKE ROAD, SUITE 203                      01581
           WESTBOROUGH, MASSACHUSETTS                    (Zip Code)
   (Address of principal executive offices)


                                 (508) 871-7046
              (Registrant's telephone number, including area code)





ITEM 7.   FINANCIAL STATEMENTS AND EXHIBITS.

          (c)  Exhibits. The following materials are filed as exhibits to this
               Current Report on Form 8-K:

Exhibit
Number         Description of Exhibit

  99.1         News Release dated July 24, 2003.

ITEM 9.   REGULATION FD DISCLOSURE (INCLUDING ITEM 12 INFORMATION)

This information, furnished under this "Item 9. Regulation FD Disclosure," is
intended to be provided under "Item 12. Results of Operations and Financial
Condition," in accordance with U.S. Securities and Exchange Commission Release
No. 33-8216.

On July 24, 2003, TC PipeLines, LP issued a news release announcing second
quarter results for the period ended June 30, 2003. A copy of the news release
is attached as Exhibit 99.1 hereto and is hereby incorporated by reference.

The information in this report is being furnished, not filed, pursuant to Item
12 of Form 8-K. Accordingly, the information in Item 12 of this report will not
be incorporated by reference into any registration statement filed by TC
PipeLines, LP under the Securities Act of 1933, as amended, unless specifically
identified therein as being incorporated therein by reference.

                                   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.

                                             TC PipeLines, LP

                                             By: TC PipeLines GP, Inc.,
                                                 its general partner

Dated: July 24, 2003                         By:       /s/  Theresa Jang
                                                 -------------------------------
                                                 Theresa Jang
                                                 Controller




                                  EXHIBIT INDEX

Exhibit. 99.1  News Release of TC PipeLines, LP entitled "TC PipeLines, LP
               Announces 2003 Second Quarter Results", issued July 24, 2003.