@RRKJAUS good luck on your application. Please feel free to ask anyone here as all had been very helpful to all. Check their website: http://www.cfo.gov.ph/
PDOS is pre departure orientation seminar required here in the Philippines before permanently migrating to the country of choice. In these seminar, various topics are discussed such as travel regulations, immigration procedures, cultural differences, settlement concerns, employment and social security concerns and rights and obligations of Filipino migrants.
Those who are 12 years old and below are exempted from attending the PDOS. They must, however, be registered, even if by proxy. Children of emigrants, aged 13 to 19, are required to attend the Peer Counseling Program to help facilitate their adjustment to a new environment.
In the case of Australia, they have every Tuesdays & Fridays as slot schedule every 2:00 - 4:00 PM. They usually provide our passports the needed PDOS sticker stamps in lieu of the former practice of putting it on the passport itself.
Hope this one helps.