the underground works for the subway will start in the 4th quarter of 2021. PNR North-South Commuter Railway The North–South Commuter Railway is an under-construction commuter rail from New Clark City in Capas, Tarlac to Calamba, Laguna. The North Line will have a length of 106-kilometer, from Tutuban in Manila to New Clark City, and is expected to be completed by 2021. The South Line will be reconstructed as an electrified standard-gauge full double-track line. Pre-construction work such as clearing of the right of way had been started in January 2018. Construction commenced in February 2019. Organizational structure The department is headed by the Secretary of Transportation, with the following seven undersecretaries and thirteen assistant secretaries Undersecretary for Administration and Finance Undersecretary for Aviation and Airports Undersecretary for Legal Affairs and Procurement Undersecretary for Maritime Undersecretary for Planning and Project Development Undersecretary for Railways Undersecretary for Road and Infrastructure Assistant Secretaries for Maritime Assistant Secretaries for Planning Assistant Secretaries for Road Transport and Infrastructure Assistant Secretary for Administration and Finance Assistant Secretary for Aviation Intelligence and Enforcement Assistant Secretary for Communications Assistant Secretary for Legal Affairs Assistant Secretary for Procurement Assistant Secretary for Project Implementation Assistant Secretary for Railways Attached agencies Land (Road) Land Transportation Franchising and Regulatory Board (LTFRB) Land Transportation Office (LTO) Toll Regulatory Board (TRB) Rail Light Rail Transit Authority (LRTA) Metro Rail Transit Corporation (MRTC) - not under the government, but supervised by the DOTr Philippine National Railways (PNR) Philippine Railways Institute (PRI) Air Civil Aeronautics Board (CAB) Civil Aviation Authority of the Philippines (CAAP) Clark International Airport Corporation (CIAC) Davao International Airport Authority (DIAA) Mactan–Cebu International Airport Authority (MCIAA) Manila International Airport Authority (MIAA) Sea Cebu Port Authority (CPA) Maritime Industry Authority (MARINA) Philippine Coast Guard (PCG) Philippine Merchant Marine Academy (PMMA) Philippine Ports Authority (PPA) Miscellaneous Office for Transportation Security (OTS) Office of Transportation Cooperatives (OTC) Secretaries of Transportation References External links Department of Transportation official website Philippines, Transportation Transportation Philippines