13 The restriction of such liberties under paragraph one shall not be imposed except by virtue of a provision of law enacted for the purpose of security of the State, public order, public welfare or town and country planning, or for maintaining family status, or for welfare of a minor. Section 39. No person of Thai nationality shall be deported or prohibited from entering the Kingdom. The revocation of Thai nationality acquired by birth shall not be permitted. Section 40. A person shall enjoy the liberty to engage in an occupation. The restriction of such liberty under paragraph one shall not be imposed except by virtue of a provision of law enacted for the purpose of maintaining the security or economy of the country, protecting fair competition, preventing or eliminating barriers or monopoly, protecting consumers, regulating the engagement of occupation only to the extent of necessity, or for other public interest. Enactment of the law to regulate the engagement of occupation under paragraph two shall not be in a manner of discrimination or interference with the provision of education by educational institutions. Section 41. A person and a community shall have the right to: (1) be informed and have access to public data or information in the possession of a State agency as provided by law; (2) present a petition to a State agency and be informed of the result of its consideration in due time; (3) take legal action against a State agency as a result of an act or omission of a government official, official or employee of the State agency. Section 42. A person shall enjoy the liberty to unite and form an association, co-operative, union, organisation, community, or any other group. The restriction of such liberty under paragraph one shall not be imposed except by virtue of a provision of law enacted for the purpose of protecting public interest, for maintaining public order or good morals, or for preventing or eliminating barriers or monopoly. Section 43. A person and a community shall have the right to: Disclaimer: This translation has been prepared by Legal Opinion and Translation Section, Foreign Law Division under the legal duty of the Office of the Council of State for information purpose only. The original Thai text as formally adopted and published shall in all events be the sole authoritative text having legal force. The Office of the Council of State shall assume no responsibility for any liabilities arising from the use and/or reference of this text.