Section 24
SEC. 24. The Commissioner of Immigration shall designate ports, from among the ports of entry designated by law as ports of entry for customs purposes, at which aliens may enter the Philippines. Such ports shall be designated by the Commissioner as unlimited or limited ports on entry. At limited ports of entry only such classes of aliens may enter as may be permitted by the Commissioner under regulations prescribed by him. He shall also have power to close ports so designated whenever he should deem it to be advisable in the public interest and upon sufficient notice to the public. DETENTION OF ARRIVING ALIENS