The Customs Act B.E. 2560 (2017) contains import requirements and limits on items brought to the Kingdom of Thailand that all parties involved, whether Thai or foreign tourists, must comply with in order to avoid fines. If the declaration of product information or items is wrong,  it is considered an offense according to the relevant laws. It is also an offense under Section 244 and Section 246 of the Customs Act B.E. 2560.
     Prohibited items that may not be imported into the Kingdom of Thailand. Certain items are strictly prohibited by law from being imported into or exported out of the Kingdom, and in some cases, transmission (i.e., transit) is prohibited as well. Whoever brings in or exports prohibited goods will be punished according to the relevant laws and Section 244 and Section 246 of the Customs Act of 2017. A partial list of items prohibited from importing or exporting follows:

1. Obscene objects, whether in the form of books, paintings, prints, printed materials, pictures, advertisements, signs, photographs, films, or other obscene objects;
2. Products with flags or patterns in the shape of the national flag;
3. Narcotics;
4. Fake money, bonds, fake bond interest certificates or a coin that dishonestly  has been made lighter, coats of arms, imprints of the national seal or King's name, fake seal or imprint of the government;
5. Pirated goods such as sound tapes (music cassettes), sound discs (compact discs), tapes (video tapes), programs, computers, books, or any other reproduced goods, or the copyrighted work of others that has been modified, counterfeit goods, or imitation of a trademark.

     Restricted items that may be imported into the Kingdom of Thailand under conditions. Some goods may legally be imported or exported or may transit through the Kingdom. They must be licensed or comply with the requirements of the relevant laws in full; for example, they must have import and export licenses, must comply with announcements related to labels or certificates of analysis or documents accompanying drugs, etc. 

     Examples of products with import measures and export measures, and standard products are as follows:

1. Buddha images, art objects, and antiques require a license issued by the Fine Arts Department;
2. Firearms, ammunition, explosives, and imitation firearms must have a license issued by the Department of Provincial Administration, Ministry of Interior;
3. Plants and parts of plants require a permit issued by the Department of Agriculture;
4. All live animals and carcasses must have a permit issued by the Department of Livestock Development;     
5. Food, drugs, cosmetics, and dietary supplements require a license issued by the Food and Drug Administration;
6. All vehicle parts and all types of materials require a license issued by the Ministry of Industry;
7. Cigarettes and tobacco in the amount of more than 200, or more than 250 grams of tobacco in any form, and alcoholic beverages in the amount of 1 liter or more require a license issued by the Excise Department;
8. Radio communication tools and telecommunication equipment requires a license issued by the National Broadcasting and Telecommunications Commission.