Yes, librarians in the Philippines are licensed by the Professional Regulation Commission. This year's Librarians' Licensure Examination (LLE) will be held on April 22 & 23 in Manila, Baguio, Cebu, Davao & Legaspi.
Ten years ago, I shared some tips on applying for and taking the LLE. While there have been a few changes between now and then, most of the advice I gave then—from applying early to not "fighting" exam questions—should still be applicable today.
If you or someone you know is taking the LLE (or any board exam, actually) this year, you may wish to read the following posts:
Librarians' Licensure Examination 2005
LLE 2005: Applying in Person
LLE 2005: Studying for the Exam
LLE 2005: Preparing for D-Day
LLE 2005: Taking the Exam