Do I need the divorce decree of my petitioner on my interview date?

No, you suppose to send divorce decree when filing I-130. Did you?

yes, he sent it along with I-130. I was just not sure. Thanks for your reply.

USCIS: I-130 PROCESS
07/28/2007 - sent I-130
09/11/2007 - NOA1
09/13/2007 - on line status update
09/18/2007 - NOA1 received by mail
03/06/2008 - Touched
03/07/2008 - Touched
03/11/2008 - NOA 2 approval
03/15/2008 - NOA 2 received by mail

NVC: CR1 PROCESS
03/20/2008 - NVC received/ Case number assigned
04/07/2008 - DS 3032and AOS Fee Bill Generated
04/15/2008 - My husband received the copy of DS 3032 and AOS fee bill
04/16/2008 - My husband sent the copy of DS3032 to me by fax
04/17/2008 - My husband paid AOS Fee Bill
04/18/2008 - I returned DS 3032 back to NVC
04/25/2008 - NVC received AOS Fee Bill
05/01/2008 - NVC received my DS3032
05/12/2008 - NVC has sent IV Fee Bill
05/12/2008 - My husband received I-864 Package
05/13/2008 - My husband returned completed I -864
05/15/2008 - NVC received I-864 Package
05/19/2008 - My husband received IV Fee Bill
05/21/2008 - My husband paid IV Fee Bill $400
05/23/2008 - NVC mailed out the letter of missing document
05/30/2008 - My husband received the letter of missing document with the Barcode cover sheet