On the other hand, tourists visiting the Philippines for 30 days or less may register their local SIMs by submitting their full name, passport number, and local address together with their valid passport and proof of address. Such local SIM shall only be valid for a limited period and shall be automatically deactivated thereafter. In contrast, foreigners staying for more than 30 days as workers or students shall, in addition to the foregoing, present their Alien Certificate of Registration Identification Card and Alien Employment Permit or school registration and identification card, whichever is applicable.