Believing strongly in the need to develop the regional dimension of parliamentary cooperation, Dr. Assegaf has played an active part in regional forums such as the Asian Parliamentary Assembly (APA); the ASEAN Inter-Parliamentary Assembly (AIPA); the Forum of Asia-Pacific Parliamentarians for Education (FASPPED); and the Parliamentary Union of OIC Member States (PUIC).
Potensinya yang kuat dalam mengembangkan dimensi regional kerjasama parlemen, Dr. Nurhayati Ali Assegaf telah memainkan peran aktif dalam forum regional seperti Pertemuan Parlemen Asia (APA); ASEAN Inter-Parliamentary Assembly (AIPA); Forum Asia- Parlemen Pasifik untuk Pendidikan (FASPPED), dan Uni Parlemen Negara Anggota OKI (PUIC).