NEW YORK (Standard&Poor's) Feb. 26, 2008--Standard&Poor's Ratings Services said today that its ratings on Berkshire Hathaway Inc. (AAA/Stable/A-1+) and its two operating subsidiaries, National Indemnity Co. (NICO; AAA/Stable/--) and Berkshire Hathaway Assurance Corp. (BHAC; not rated), would not be affected by the company's announced intention to provide financial guaranty insurance through its 100%-owned operating subsidiary BHAC. Because of significant contractual commitments including a contingent payment insurance policy and a financial enhancement letter from NICO in support of BHAC, the NICO 'AAA' rating is expected to be assigned on a transactions-only basis to contracts written by BHAC. Standard&Poor's will assess required capital for each deal written by BHAC, so as to monitor and measure this