The official PhilippineTreaty Series was published from vol 1-9 (1944-1983). It is available electronically on HEIN Online (UniMelb staff & students). There has been no official treaty series since 1983.
Philippine Treaties Online - on the official Office of Legal Affairs, Department of Foreign Affairs website. This database provides a list of all bilateral treaties, from 1947 to current, which can be sorted by Title, Category, Date of Signature, Date of Entry into Force, and Contracting Party. Treaties can also be searched by, for example contracting party, topic, and date of entry into force.
The Philippines Supreme Court E-Library contains:
United Nations Treaty Series (UNTS) - includes multilateral and bilateral treaties deposited with the Secretary - General of the UN. This is the most comprehensive online collection of Philippines treaties - containing over 1000 treaties, from 1919 to current, from both the UNTS and its precursor, the League of Nations Treaty Series (LNTS). Treaties are listed, and can be sorted by Registration Number, Title, Participants. Conclusion Date, Date of Entry into Force, and Treaty Type. It can also be searched. To see all treaties to which the Philippines is a party, from the search page, select Participant Search and then select Philippines from the menu.
Clicking on a treaty provides status and ratification information etc and full-text treaties in the UNTS, together with the UNTS citation.
The Consolidated Treaty Series (CTS) (1648-1919) contains two bilateral treaties entered into by the US when the Philippines was under US colonial rule. The CTS has been reproduced in the online Oxford Historical Treaties. From the home page, use the + buttons in the left-hand menu under the Treaty Party heading > Geographic Regions > Asia > Colonial Polities > Philippine Islands (United States).
Call Number: KC 339 P62 MALA Publication Date: 2010This book contains a complete list of bilateral and multilateral agreements entered into by the Philippines with other countries and international organisations from 1946 to 2010.