• Bid Bulletin No. 1 - Bid No. 20-002-08 DELTA - Supply, Installation, Testing & Commissioning of Airfield Lighting System at New Bicol International Airport
• Bid Bulletin No. 1 - Bid No. 20-003-08 DELTA - Construction of New Passenger Terminal Building (Phase I) of Tacloban Airport Development Project
• Bid Bulletin No. 1 - Bid No. 20-005-12 DELTA - Tuguegarao Airport Development Project (Construction of Control Tower Building, Construction of Security Fence & Gate, And Provision of Manhole & Transformer Pad)
• Bid Bulletin No. 1 - Bid No. 20-006-12 DELTA - Virac Airport Development Project (Re-blocking of Taxiway, Construction of CHB Perimeter Fence and Construction of Drainage System)
• Bid Bulletin No. 1 - New Schedule for the Purchase/Installation of DVOR/DME at Bicol International Airport
• Bid Bulletin No. 2 - Bid No. 20-001-07 DELTA - New Schedules for the Kalibo Airport Development Project (Asphalt Overlay of Runway; Concreting of Fire Truck Access Road; Strip Width Correction; Relocation of Access Road, Irrigation Canal; Perimeter Fence; Construction of Box Culvert and RCPC)
• Bid Bulletin No. 2 - Bid No. 20-003-08 DELTA - Construction of New Passenger Terminal Building (Phase I) of Tacloban Airport Development Project
• Bid Bulletin No. 3 - Bid No. 20-003-08 DELTA - Construction of New Passenger Terminal Building (Phase I) of Tacloban Airport Development Project
• Bid Bulletin No. 4 - Bid No. 20-003-08 DELTA - Construction of New Passenger Terminal Building (Phase I) of Tacloban Airport Development Project
• Bid Bulletin No. 5 - Bid No. 20-003-08 DELTA - Construction of New Passenger Terminal Building (Phase I) of Tacloban Airport Development Project
• Supplemental / Bid Bulletin No. 1 - Bid No. 20-004-11 DELTA - Purchase/Installation of DVOR/DME for Bicol International Airport
• Supplemental / Bid Bulletin No. 2 - Bid No. 20-004-11 DELTA - Purchase/Installation of DVOR/DME for Bicol International Airport