In re the Arbitration between Nationwide Mutual Insurance & Steber

—Judgment unanimously affirmed without costs. Memorandum: Supreme Court properly granted the petition seeking a permanent stay of arbitration of respondents’ supplemental uninsured motorist (SUM) claim. Petitioner supported its application with proof that respondents waited 30 months after the accident to *941provide notice of their SUM claim. The burden was on respondents to explain their delay (see, Unwin v New York Cent. Mut. Fire Ins. Co., 268 AD2d 669). The record establishes that, immediately following the accident, respondents were aware of the severity of respondent Jeffrey Steber’s…