6-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of January 2015

TRANSALTA CORPORATION

(Translation of registrant’s name into English)

110-12^th Avenue S.W., Box 1900, Station “M”, Calgary, Alberta, T2P 2M1

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F____ Form 40-F X

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): ____

I

The document listed below as Exhibit 99.1 to this Form 6-K is a copy of the Registrant’s news release dated January 8, 2015 announcing “TransAlta receives investment grade credit rating from Fitch Ratings”.

This news release is being furnished, not filed, and will not be incorporated by reference into any registration statement filed by TransAlta Corporation under the Securities Act of 1933, as amended.

99.1 Press release dated January 8, 2015 announcing “TransAlta receives investment grade credit rating from Fitch Ratings”.

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.

	TransAlta Corporation
Date: January 8, 2015	By: /s/Donald Tremblay Donald Tremblay Chief Financial Officer

EXHIBIT INDEX

99.1 Press release dated January 8, 2015 announcing “TransAlta receives investment grade credit rating from Fitch Ratings”.

EX-99.1

TransAlta receives investment grade credit rating from Fitch Ratings

CALGARY, Alberta January 8, 2015 – TransAlta Corporation (TSX:TA) (NYSE:TAC) announced today that Fitch Ratings (“Fitch”) has assigned TransAlta a BBB- /Stable credit rating.

“We believe the Fitch rating reflects our commitment to strengthen our balance sheet and our prudent financial policies as we position the company for the post-Alberta PPA timeframe,” said Donald Tremblay, Chief Financial Officer. “We sought a formal issuer rating from Fitch Ratings as part of our effort to ensure debt and equity investors have sufficient information to properly evaluate TransAlta`s prospects and balance sheet strength.”

TransAlta is rated BBB- (stable outlook) by S&P, BBB (stable outlook) by DBRS and Baa3 (negative outlook) by Moody’s.

TransAlta is a power generation and wholesale marketing company focused on creating long-term shareholder value. TransAlta maintains a low-to-moderate risk profile by operating a highly contracted portfolio of assets in Canada, the United States and Australia. TransAlta’s focus is to efficiently operate wind, hydro, natural gas and coal facilities in order to provide customers with a reliable, low-cost source of power. For over 100 years, TransAlta has been a responsible operator and a proud contributor to the communities in which it works and lives. TransAlta has been selected by Sustainalytics as one of Canada’s Top 50 Socially Responsible Companies since 2009 and is recognized globally for its leadership on sustainability and corporate responsibility standards by FTSE4Good.

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For more information:

Investor inquiries:	Media inquiries:
Brent Ward	Leanne Yohemas
Director, Corporate Finance and Investor Relations	Senior Advisor, External ommunications
Phone: 1-800-387-3598 in Canada and U.S.	Cell: 587-437-3660
Email: investor_relations@transalta.com	Toll-free media number: 1-855-255-9184
	Alternate local number: 403-267-2540
Jacqueline O’Driscoll	ta_media_relations@transalta.com
Manager, Investor Relations
Phone: 1-800-387-3598 in Canada and U.S.
Email: investor_relations@transalta.com