RUSSELL Q. BERNAL, IN HIS CAPACITY AS THE AUTHORIZED MANAGING OFFICER OF CIARA CONSTRUCTION/BERSON CONSTRUCTION & TRADING (A JOINT VENTURE), PETITIONER, VS. HON. FELIPE M. DE LEON, JR., IN HIS CAPACITY AS CHAIRMAN OF THE NATIONAL COMMISSION FOR CULTURE AND THE ARTS (NCCA), HON. ROGELIO L. SINGSON, IN HIS CAPACITY AS SECRETARY OF THE DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS (DPWH), HON. MELANIO C. BRIOSOS, IN HIS CAPACITY AS REGIONAL DIRECTOR OF THE DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - REGIONAL OFFICE I, AND MOST REV. RODOLFO BELTRAN, D.D., BISHOP OF LA UNION, RESPONDENTS