August 1, 2018
U.S. Securities and Exchange Commission
100 F. Street, N.E.
Washington, D.C. 20549

		
Re:	Notice of Disclosure Filed in the Quarterly Report on Form 10-Q Under Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 and Section 13(r) of the Exchange Act	

Ladies and Gentlemen:
Pursuant to Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 and Section 13(r) of the Securities Exchange Act of 1934, as amended, notice is hereby provided that Chubb Limited has made disclosure pursuant to such provisions in its Quarterly Report on Form 10-Q for the period ended June 30, 2018, which was filed with the Securities and Exchange Commission on August 1, 2018.
Very truly yours,
Chubb Limited
By: /s/ Paul Medini
Name: Paul Medini
Title: Chief Accounting Officer