However, activities concerning UNESCO nominations were only made after the successful People Power Revolution of 1986, which restored democracy in the Southeast Asian nation.
[9] In 1995, the Philippines hosted UNESCO's "Regional Thematic Study Meeting on Asian Rice Culture and its Terraced Landscape" in the capital, Manila.
[17] Additionally, the Gota de Leche Building was named as an Honourable Mention in the UNESCO Asia Pacific Heritage Awards.
[20] In December 2005, the Philippines participated in the UNESCO Regional Workshop on Periodic Reporting Follow-up for North-East and South-East Asia, held in Malaysia.
In September 2008, the Philippines participated in the "Workshop for the World Heritage property of Lumbini, the birthplace of Lord Buddha" held in Nepal.
The organization found that non-traditional concrete structures were being established by locals in various sections of the islands, effectively diminishing the site's cultural value.
Prompted by failures of past officials, the local governments of Batanes afterwards converged and declared a province-wide cultural and natural conservation program.
[34] By November 2011, the Batangas government proposed to establish a "Hollywood sign" on top of the Taal Volcano, which at the time was a UNESCO tentative site, receiving criticism.
[35] In March 2012, the Swiss-based Jaeger-LeCoultre initiated an auction which benefited the conservation programs for the Puerto-Princesa Subterranean River National Park.
[36] In June 2012, the Rice Terraces of the Philippine Cordilleras was officially removed from the list of UNESCO World Heritage Sites in Danger, marking the country's most successful cultural landscape rehabilitation achievement.
[9] In September 2012, the Philippines participated in the "Joint International Symposium: Involving Communities for Better Conservation and Management of Asian World Heritage Sites" held in South Korea.
[43] On the same month, the country aided in the UNESCO publication of the "Beach Forest Species and Mangrove Associates in the Philippines",[44] and also participated in the discussions on culture and education for the incoming 2015 Development Agenda,[45] as well as the goodwill ambassadorial meeting.
[53] President Aquino afterwards launched the national government's programs to preserve and restore all heritage sites damaged by natural calamities including those declared as UNESCO world heritage sites, while also launching the establishment, expansion and modernization of more museums throughout the country, including the National Museum of the Philippines, which houses UNESCO-inscribed documentary collections.
[58] In August 2014, the Philippines participated in the UNESCO and IKMAS Roundtable for the improvement of inclusive policy approaches and data gaps in ASEAN.
[63] In August 2014, the Philippines hosted UNESCO and its international delegations to the World Heritage Volunteer Programme, held in Ifugao province.
[64] In November 2014, the Philippines participated in the launching of the "New Guide - Promoting Disaster Risk Reduction through Education" for the benefit of climate vulnerable nations.
[67] In December 2014, the Philippines participated in the "Asia Rounds of the Price Media Law Moot Court Competition" held in Beijing.
[citation needed] In April 2015, a new management plan was launched for Tubbataha Reefs Natural Park which focuses on the site's "Outstanding Universal Value".
[73] In September 2015, the Philippines participated in the "10th International Training Programme on Disaster Risk Management of Cultural Heritage" held in Japan.
[75] In January 2016, the Philippines participated in the international dialogue on "Understanding rights practices in the World Heritage system: lessons from the Asia-Pacific and the global area" held in Switzerland.
[79][80] In the same month, the International Maritime Organization approved “in principle” the "Particularly Sensitive Sea Area Status" for Tubbataha Reefs Natural Park.
[81] In June 2016, the Heritage Conservation Society and the United States embassy conducted a cultural-tourism program for the Agusan Marsh Wildlife Sanctuary, a step closer for the site's re-submission in the UNESCO tentative list.
[79] In May 2017, the Philippines participated in the "UNESCO Expert Meeting for the World Heritage Nomination Process of the Maritime Silk Routes" held in the United Kingdom.
[86] In September 2017, the Philippines participated in the "Capacity Building Workshop on Nature-Culture Linkages in Heritage Conservation in Asia and the Pacific" held in Japan.
[87] In October 2017, the Philippines participated in the "Photo Exhibit: Coral Reefs on UNESCO's World Heritage List" held in France.
[89] In 2018, the NCCA initiated a 3D laser scan program for all UNESCO cultural world heritage sites in the country as preparation for disasters in the future.
[91] In July 2018, the Philippines participated in the "2018 Capacity Building Workshop on Nature-Culture Linkages in Heritage Conservation in Asia and the Pacific" held in Japan.
[92] On October 1, 2018, it was revealed that a planned highrise building of Summithome Realty Corporation near San Sebastian Church had negatively affected the site's possible re-inclusion in the UNESCO tentative list, sparking criticism.
Ecological frontiers like Eastern Mindanao, Eastern Visayas, Sibuyan island, Western Panay, the Sierra Madre, Southern Mindanao, the Sulu Archipelago, and the Cordilleras are theoretically capable of standing as UNESCO Biosphere Reserves in the future, along with specific Key Biodiversity Areas (KBAs) designated by Haribon Foundation and the Department of Environment and Natural Resources.
On July 27, 2018, the provincial government of Apayao announced their intent to start the long process to declare the Calanasan rainforests as a protected area and a UNESCO Biosphere Reserve or World Heritage Site.