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

SECTION 1. Section eighteen hundred and twenty-one of Act Numbered Twenty-seven hundred and eleven, known as the Revised Administrative Code, is hereby amended to read as follows:

"SEC. 1821. Groups of trees.—The various trees shall be divided into four groups;

"The first group shall include Akle, Akleng-parang, Al-maciga, Ai'anga, Bakan, Balu, Bansalagin, Banuyo, Bati-kuling, Batitihan, Betis, Caña-fistula, Dañgula, Dao, Duñgon Dungon-late, Duyok-duyok, Ebony, Gisok, Guijo, Gisok-gisok, Ipil, Kaburo, Kalamansanai, Kalantas, Kaliot, Kamagon, Kulilisiau, Lanete, Magasusu, Malabunga, Malaguijo, Malakadios, Malakauayan, Mancono, Manggachapui, Maranggo, Margapali, Matang-usa, Molave, Narek, Narig, Narra, Sapluñgan, Sudiang, Supa, Tambulian, Teak, Tindalo, Urung and Yakal.

"The second group shall include Afu, Alupag, Alupag-amo, Amugis, Anubing, Apitong, Banaba, Bagras (Amamanit), Batino, Binggas, Bitanghol or Palomaria del monte, Bitaog, Bolong-eta, Dagang, Hagakhak, Kamatog, Kamuning, Katmon, Katmon-kalabau, Kayu-galu, Kubi, Lanutan, Lumbayau, Lumbayau-bato, Makaasim, Malabatino, Malabayabas, Malakatmon, Malugai, Manggis, Mangkas, Ma-pilig, Marabitaog, Mayapis, Nato, Pagatpat, Palosapis, Pamitaogen, Panau, Piagau, Pili, Pine Benguet, Philippine chestnut, Red lauan, Sangilo, Taba, Tabau, Tabigi, Tamayuan, Tangile, Tanglin, Tiga and Tukang-kalau.

"The third grorp shall include Agoho, Agoho del monte, Almon, Amayan, Anislag, Antipolo, Bagtikan, Batete, Batukanag, Bayanti, Bayok, Bogo, Bulala, Bulog, Dalinsi, Gisihan, Gubas, Haras, Kaliñgag, Kalumpit, Kalunti, Kansulud, Kato, Kayatau, Kulingmanok, Lamio, Lago, Lamog, Lanipau, Liusin, Malaanonang, Malakamias, Malanbiñgan, Malapapaya, Malasaging, Malasantol, Malatumbaga, Matamata Miao, Nangka, Oak, Pahutan, Sakat, Salakin, Salinkugi Sandit, Santol, Tanghas, Talisai, Talisai-gubat, Taluto, Toog, Unik and White lauan.

“The fourth group shall include all species not included in any of the other groups.

"The Director of Forestry may in his discretion by public order or regulation and with the approval of the Department Head change the permanent grouping of any trees but no change in the grouping of a particular tree shall be made greater frequency than at intervals of three years: Provided, however, That this period shall be computed from the date of the last order or regulation changing the grouping."

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

Approved, June 14, 1949.