The national section of IVR from the United States is AMINTAPHIL (American Section of the International Association for Philosophy of Law and Social Philosophy). The current President of AMINTAPHIL is Win-Chiat Lee at Wake Forest University.
Websites:
AMINTAPHIL has a website at the Philosophy Documentation Center: http://www.pdcnet.org/amintaphil
See also AMINTAPHIL Agora: https://amintaphil.wordpress.com/
Contact:
Executive Director: Mark Navin, Oakland University, e-mail: navin@oakland.edu
IVR website and blog 