Philippine presidential line of succession

The Philippine presidential line of succession defines who becomes or acts as president upon the incapacity, death, resignation, or removal from office (by impeachment and subsequent disqualification) of a sitting president or a president-elect.
The current presidential line of succession to the office of the president of the Philippines is specified by the 1987 Constitution. The line of presidential succession follows the order of: vice president, president of the Senate and speaker of the House of Representatives. In case of death, permanent disability, or inability of these officials, Congress shall, by law, provide for the manner of selection of the person who is to act as president until a president or vice president shall have qualified and the line of succession will change of who those new national officials are.
Contrary to popular belief, the presidential line of succession does not include the chief justice.
Under the 1973 constitution, the executive committee led by the prime minister was to exercise the powers and discharge the duties of the president, if the president-elect had died, failed to qualify, or if the president had not have been chosen. If the Batasang Pambansa, the national legislature, withdraws confidence in the prime minister, the legislature's speaker would have presided over the executive committee. In an absence of an executive committee, the Batasang Pambansa speaker would be acting president until a new president was elected or qualified. If the presidency was vacated with more than 18 months left in the term of the previous president, the Batasang Pambansa was obliged to organize a special election, with the elected president to serve the unexpired term of their predecessor.
The executive committee was created under the said constitution, which should have at most 14 members and at least half of which should be Assemblymen. The executive committee assists the president in fulfilling their executive function.
There was uncertainty regarding the presidential line of succession during the later years of the presidency of Ferdinand Marcos, particularly in the 1980s. It is implied that the member who was deemed the best performing would be Marcos' successor whose health is already deteriorating. The failing economy at that time also called for the clarity on who exactly would succeed Marcos. In 1983, President Marcos announced who ever was prime minister at the time the presidency becomes vacant would succeed him. Among those who were considered as candidates to succeed Marcos are Prime Minister Cesar Virata who was chairman of the committee, and Imelda Marcos who is also a committee member, Marcos' wife and the first lady. A member of the committee, Emmanuel Pelaez lobbied for a constitutional amendment which would allow Prime Minister Virata to assume as acting president in an event Marcos vacates the presidency while Assemblyman Arturo Tolentino campaigned for the restoration of the post of vice president.
Another plebiscite was held in 1984 which restored the position of vice president, as well as restoring the holder of the position as the first in line in the presidential succession. A vice president should have been elected in a scheduled national elections in 1987, which was never held because President Marcos announced snap elections in 1985. The ratified provisions of the 1984 plebiscite also obliged the speaker of the Batasang Pambansa to act as acting president should the presidency be vacated prior to the scheduled 1987 elections. Corazon Aquino was installed as president when President Ferdinand Marcos was removed from office in the People Power Revolution of 1986.
The following are the provisions for the Philippine presidential line of succession of the current Constitution of the Philippines adopted in 1987.