Works by the government of the Philippines are not protected by copyright. However, prior approval of the government agency or office wherein the work was created is necessary for exploitation of such works for profit. (sec 171.11 and 176)
{{Information |Description=One of the Sikorsky S-76 used by the Philippine Air Force. |Source=http://www.paf.mil.ph/Aircraft%20Gallery/S76%20SIKORKY.jpg |Date= |Author=Philippine Air Force |Permission= |other_versions= }}