Be it enacted by the Senate and House of Representatives of the Philippines in Congress assembled:

SECTION 1. The following sitios are constituted into distinct and separate barrios of the Municipality of Mabini, Province of Davao.

The sitios of Panibasan Proper and Andili into a barrio to be known as the barrio of Panibasan; the sitios of Cadunan Proper, Anislagan, Malabatuan and Lapinigan into a barrio to be known as the barrio of Cadunan; and the sitios of Tangnanan Proper, Mampising and Tagbalabao into a barrio to be known as the barrio of Tangnanan.

SEC. 2. This Act shall take effect upon its approval.

Approved, June 20, 1957.