After a process of more than seven years , Calamba became the second component city of the Laguna by virtue of Republic Act No. 9024 , `` An Act Converting the Municipality of Calamba , Province of Laguna into a Component City to be known as the City of Calamba . ''
With the passage of Republic Act No. 9024 on April 7 , 2001 and the approval of the people on April 21 , Calamba went from being a municipality into being Laguna 's second component city .