On March 1, S&P requested comments by March 30 on rating methodology and assumptions for derivative product companies.  S&P Request for Comment.

On February 28, Fitch updated its U.S. municipal structured finance criteria.  Fitch Report.

On February 27, S&P released FAQs on its revised principal stability fund / money market fund criteria.  S&P FAQs.

On February 27, Fitch published criteria on U.S. mortgage REITs and similar finance companies.  Fitch Report.

On February 27, Fitch published criteria on U.S. equity REITs and REOCs (real estate operating companies). 
Fitch Report.

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