Presidential Decree No. 995 created the Batasang Bayan to function as a legislative body before the Interim Batasang Pambansa convened in 1978. So on September 21, 1976 on 4th Anniversary of the birth of the Bagong Lipunan (New Society) the Batasang Bayan held its inauguration at the PICC. For the first time, the PICC was used to house a legislative body from 1976 to 1978.
The PICC is dedicated to the task of bringing peoples and nations together and providing a place where they can meet and exchange ideas that may perhaps open doors to better world understanding and peace.