Parañaque was separated from Rizal on November 7, 1975 by virtue of Presidential Decree No. 824, and was represented in the Interim Batasang Pambansa along with other Metropolitan Manila municipalities and cities as part of Region IV from 1978 to 1984.
Parañaque's separation from Rizal occurred on November 7, 1975, as per Presidential Decree No. 824, and it was represented in the Interim Batasang Pambansa alongside other Metro Manila municipalities and cities within Region IV from 1978 to 1984.