MGB Region 1 has jurisdiction over the provinces of Ilocos Norte, Ilocos Sur, La Union, and Pangasinan. MGB Region 1 office is located at Lee Bldg., Lingsat, San Fernando City, La union, and can be contacted at the Tel. No. (072) 242-2777; 607-2778; 607-2686; 700-4453 or thru email: mgbro1@yahoo.com.