This excerpt taken from the CVS DEF 14A filed Mar 28, 2008.
Stockholders and other parties interested in communicating directly with the Lead Director or with the non-management directors as a group may do so by writing to them care of CVS Caremark Corporation, One CVS Drive, Woonsocket, RI 02895. The Nominating and Corporate Governance Committee has
approved a process for handling letters received by the Company and addressed to the Lead Director or to non-management members of the Board. Under that process, the Corporate Secretary of the Company reviews all such correspondence and regularly forwards to the Board a summary of all such correspondence and copies of all correspondence that, in the opinion of the Corporate Secretary, deals with the functions of the Board or committees thereof or that he otherwise determines requires their attention. Directors shall from time to time review a log of all correspondence received by the Company that is addressed to members of the Board and may request copies of any such correspondence. Concerns relating to accounting, internal accounting controls or auditing matters will be promptly brought to the attention of the Companys internal audit department and handled in accordance with procedures established by the Audit Committee with respect to such matters.