45 CFR 1619.4: Exemptions.

Nothing in this part shall require disclosure of:

(a) Any information furnished to a recipient by a client;

(b) The work product of an attorney or paralegal;

(c) Any material used by a recipient in providing representation to clients;

(d) Any matter that is related solely to the internal personnel rules and practices of the recipient; or

(e) Personnel, medical, or similar files.