These are memoranda which have been issued by USCIS (and INS prior to the creation of USCIS) on this topic. You will need the free Adobe Reader software to view these files.
I-751 Filed Prior to Termination of Marriage (155KB PDF)Donald Neufeld, Acting Associate Director, Domestic Operations Directorate
Delegation of Authority to Service Center Directors to Adjudicate Form I-829, Petition by Entrepreneur to Remove Conditions; Adjudication of Form N-400, Application for Naturalization when a Form I-829 is Still Pending; AFM Update: Chapter 25.2 (323KB PDF)Michael Aytes
Associate Director, Operations12/21/2006