In the House of the Representatives, House Bill 3693 was filed on March 4, 2008 by then Representative Ma. Victoria Sy-Alvarado. The Committee on Local Government, of the House of the Representatives, approved House Bill 3162, declaring Malolos City as a lone congressional district separate and distinct from the first congressional district of the province of Bulacan. The said House Bill was substituted by House Bill 3693, which had been approved by the House on April 29, 2008; transmitted on May 5; and was received by the Senate on May 6, 2008.