SCHEDULE 13G

EXHIBIT B

JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k)(1)

The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G in connection with their beneficial ownership of the Common Stock of American Standard Companies Inc.

Dated:	February 14, 2007	/S/ Warren E. Buffett
		Warren E. Buffett
		Berkshire Hathaway Inc.
Dated:	February 14, 2007	/S/ Warren E. Buffett
		By: Warren E. Buffett
		Title: Chairman of the Board
		OBH, Inc.
Dated:	February 14, 2007	/S/ Warren E. Buffett
		By: Warren E. Buffett
		Title: Chairman of the Board
		National Indemnity Company
Dated:	February 14, 2007	/S/ Marc D. Hamburg
		By: Marc D. Hamburg
		Title: Chairman of the Board
		GEICO Corporation
Dated:	February 14, 2007	/S/ Warren E. Buffett
		By: Warren E. Buffett
		Title: Chairman of the Board
		Government Employees Insurance Company
Dated:	February 14, 2007	/S/ Olza M. Nicely
		By: Olza M. Nicely
		Title: Chairman of the Board