BOARDWALK PIPELINES LP

Notice of Effectiveness

Correspondence with the SEC

Letter from the SEC

Registration statement under Securities Act of 1933

Prospectus Supplement for Delayed or Continuous Offering

Prospectus Supplement for Primary Offering

Free Writing Prospectus

Prospectus Supplement for Delayed or Continuous Offering

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Notice of Effectiveness

Correspondence with the SEC

Registration statement under Securities Act of 1933 (amendment)

Letter from the SEC

Registration statement under Securities Act of 1933

Prospectus Supplement for Delayed or Continuous Offering

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Notice of Effectiveness

Correspondence with the SEC

Letter from the SEC

Registration statement under Securities Act of 1933

Prospectus Supplement for Delayed or Continuous Offering

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Prospectus Supplement for Delayed or Continuous Offering

No description available

No description available

Correspondence with the SEC

Letter from the SEC

Post-effective amendment to an automatic shelf registration statement

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

No description available

No description available

Annual report pursuant to Section 13 or 15(d)

1.01,2.01,2.03,5.03,9.01

Entry into a Material Definitive Agreement

General form for quarterly reports under Section 13 or 15(d)

7.01

8.01,9.01

General form for quarterly reports under Section 13 or 15(d)

7.01,9.01

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d)

Completion of Acquisition or Disposition of Assets

8.01,9.01

1.01,2.03,9.01

1.01,9.01

Entry into a Material Definitive Agreement

1.01,9.01

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)