Section 133Omnibus Election Code of the Philippines (Batas Pambansa Blg. 881), Sec. 133

Columns in the list of voters. - The list of voters shall be arranged in columns as follows: In the first column there shall be entered, at the time of closing of the list before the election, a number opposite the name of each voter registered, beginning with number one and continuing in consecutive order until the end of the list. In the second column, the surnames of the registered voters shall be written in alphabetical order followed by their respective first names, without abbreviations of any kind. In the third column, the respective residences of such persons with the name of the street and number, or, in case there be none, a brief description of the locality or place. In the fourth column, shall be entered the periods of residence in the Philippines and in the city or municipality.

In the fifth column, there shall be entered on the day of the election the numbers of the ballots which were given successively to each voter. In the sixth column, the voter shall stamp on the day of the election the mark of the thumb of his right hand and under said mark his signature. And in the seventh column, the signature of the chairman of the board of election inspectors who has handed the ballot to the voter. It will be sufficient that the fifth, sixth, and seventh columns shall be filled in the copy of the list under the custody of the board of election inspectors which shall see to it that the thumbmark is stamped plainly.