The National Police Commission conducts two sets of police examination twice a year, one for those who are already in the police service (promotional), and another for those aspiring to enter thePhilippine National Police (PNPEntrance).
You can watch the video tutorial and tips for PNP- Napolcom Exam Online Registration. Just click the image to watch.
UPDATE: February 7, 2013
NAPOLCOM announced that the first examination for this year will be on May 26, 2013. For more information, click HERE!
The link to the online application system, according to Napolcom, is www.napolcom-online.com/x_entrance.php.