Omnibus Election Code
Section 125. Re-registration. - A voter who is registered in the permanent list of voters need not register anew for subsequent elections unless he transfer residence to another city or municipality, or his registration has been cancelled on the ground of disqualification and such disqualification has been lifted or removed. Likewise a voter whose registration has been cancelled due to failure to vote in the preceding regular election may register anew in the city or municipality where he is qualified to vote.