This excerpt taken from the CVS 8-K filed Aug 15, 2006.
. Maintenance of Office or Agency. The Company shall maintain an office or agency (which may be an office of the Trustee or an affiliate of the Trustee, Registrar or co-registrar) where any series of Debt Securities may be surrendered for registration of transfer or exchange and where notices and demands to or upon the Company in respect of the Debt Securities of such series and this Indenture may be served. The Company shall give prompt written notice to the Trustee of the location, and any change in such location, of such office or agency. If at any time the Company shall fail to maintain any such required office or agency or shall fail to furnish the Trustee with the address thereof, such presentations, surrenders, notices and demands may be made or served at the Corporate Trust Office of the Trustee.
The Company also from time to time may designate one or more additional offices or agencies where the Debt Securities of any series may be presented or surrendered for any or all such purposes and from time to time may rescind any such
designation; provided, however, that no such designation or rescission shall in any manner relieve the Company of its obligation to maintain an office or agency for such purposes. The Company shall give prompt written notice to the Trustee of any such designation or rescission and of any change in the location of any such other office or agency.