National Parks Act, B.E. 2562 (2019).

The 64 sections of this Act are divided into 6 Chapters: National Parks (I); Forest Parks, Botanic Gardens and Arboreta (II); Service Fees or Remuneration (III); Exploitation of Biological Diversity (IV); Competent Officials (V); Penalties (VI).
When it appears that any area has such suitable characters as to be designated as a national park, the Department of National Parks, Wildlife and Plant Conservation shall submit the matter to the Council of Ministers for consideration and approval to that effect (sect. 6). There shall be a commission called the “National Parks Commission” consisting of the Minister of Natural Resources and Environment as Chairperson, the Permanent Secretary for Natural Resources and Environment as Vice Chairperson, the Permanent Secretary for Agriculture and Co-operatives and and other Government officers (sect. 10). The Commission's duties and powersinclude: (1) to set policies on the management of national parks, forest parks, botanic gardens and arboreta; (2) to make recommendations on the designation of any area as a national park and the expansion or revocation of a national park to ensure consistency with policies and plans on the management of land and land resources of the country; (3) to consider and approve the designation of any area as a forest park, botanic garden and arboretum as well as the expansion or revocation of a forest park, botanic garden and arboretum to ensure consistency with policies and plans on the management of land and land resources of the country; etc (sect. 16). In the protection, maintenance, care, preservation and management of national parks, there shall be made available a plan on the management of the area of each national park, together with a map indicating details and boundary lines for the area management, for submission to the Director-General for approval (sect. 18).
Within a national park, no person shall: (1) holding or possessing land, carrying out construction, massively clearing or burning a forest or acting in any manner causing deterioration or diversion of area conditions from original conditions; (2) collecting, taking away or otherwise endangering or deteriorating wood, soil, rocks, gravels, sand, minerals, petroleum or other natural resources or carrying out any other act affecting the ecosystem, biological diversity and natural resources and the environment; (3) luring or taking wild animals away or injuring wild animals in any manner; (4) changing a waterway or causing water in a river, brook, marsh, swamp or the sea to overflow or be dried, polluted or toxic; (5) blocking or obstructing a waterway or an inland way; (6) making an entry for performing any activity with a view to seeking a benefit; (7) bringing into it tools for hunting animals or catching animals or any weapons; (8) firing a gun, causing explosion or lighting fireworks; (9) leaving articles which may serve as fuel capable of combustion; (10) causing boundary stakes or marks indicating boundary lines made available by competent officials under this Act to be moved, obscured, damaged, lost or useless.
Any person who collects, procures or gathers plant varieties, animal varieties or any part of such plant varieties or animal varieties including biological diversity in a national park, forest park, botanic garden or arboretum for the purpose of a study or research which is beneficial to biological diversity preservation shall obtain permission from the competent official. The sharing of benefits from results of the study or research of biological diversity in a national park, forest park, botanic garden or arboretum shall be in accordance with the laws on such particular matters. (Sec.34).