Question & AnswerQ&A (EXECUTIVE ORDER NO. 103)
Region IV-A is known as CALABARZON and Region IV-B is known as MIMAROPA.
Provinces: Batangas, Cavite, Laguna, Quezon, Rizal. Cities: Antipolo City, Batangas City, Calamba City, Cavite City, Lipa City, Lucena City, San Pablo City, Tagaytay City, Tanauan City, Trece Martires City.
Provinces: Marinduque, Mindoro Occidental, Mindoro Oriental, Palawan, Romblon. Cities: Calapan City, Puerto Princesa City.
The Province of Aurora was transferred from Region IV to Region III.
Article X, Section 4 of the 1987 Philippine Constitution.
The Department of the Interior and Local Government (DILG).
It took effect immediately upon approval on May 17, 2002.
They are repealed or modified accordingly.