Order, Supreme Court, New York County (George J. Silver, J), entered July 10, 2012, which denied the petition to stay arbitration of an underinsured motorist claim in the underlying personal injury action and dismissed the proceeding, unanimously reversed, on the law, without costs, and the petition granted.
Respondents’ October 23, 2007 letter, which explicitly advised Allstate of a “potential claim under the Uninsured/ Underinsured provision of the above-policy,” and January 31, 2011 letter, which stated “[w]e will now be moving forward on our client’s underinsured motorist claim,” fail to include the requisite notice provision contained in CELR 7503 (c) to constitute a sufficient notice to arbitrate (see Matter of Blamowski [Munson Transp.],