Enforcement Rules of the Nationality Act Article 6
The annual legal residence for more than 183 days in total for more than 5, 3 or 2 consecutive years as referred to in Articles 3 and 4 of this Act shall mean that the residence period of such 5, 3 or 2 years prior to the application for naturalization shall be consecutive, as well as that the applicant has legally resided for more than 183 days in total every year during such period. Nevertheless, any residence overstay does not conform to the requirement of legal residence, which results in the interruption of such residence period. If the overstay period does not exceed 30 days, the residence period shall be deemed not to have been interrupted.The overstaying period as mentioned in the preceding paragraph shall not be calculated into the legal residence of the 183 days.The consecutive residence of more than 5 or 10 years as referred to in Article 5 of this Act shall mean the consecutive residence of more than 5 or 10 years before the application for naturalization.