程序
输入
当货运到达泰国时，进口商必须在入境口中向海关官员提交货物声明和支持文件。直到货物到达进入港口之后，商品的交付已由海关授权，并已缴纳了适用的税款和关税，才能缴纳进口货物。进口商有责任安排进口货物的检查和释放。
此外，根据进口的性质和价值，进口商可能需要获得许可以促进进口商品的清除。在进口之前，应联系一些（并非全部）要求许可证的商品以及相关许可证机构。
文件
如果是红线（高风险运输），则需要提交海关的最低文件以清理进口，包括：
- 导入声明
- 提单（b/l）或空气票据
- 发票
- 打包清单
- 进口许可（如果适用）
- 起源证书（如果适用）
- 其他相关文档，例如目录，产品成分等。
声明和清除过程
在电子竞技系统下，无需相关方提交纸质文档，因为所有数据均以电子方式从进口商的计算机系统传输到电子客户系统。
Generally, declaration and clearance process include 4 stages:
1. Submission of a Declaration:The first stage of import clearance process is to complete an Import Declaration and submit it to the e-Customs system. Prior to the arrival of cargo or upon the arrival of cargo, a shipping agent electronically transmits a ship or aircraft arrival report, and manifest information to the e-Customs system. If there is no error, the ship or aircraft arrival report number is automatically generated by the e-Customs system and the response message is transmitted to the shipping agent. When the cargo arrives at the port or place of entry, an importer or a Customs broker submits an Import Declaration to the e-Customs system.
2.检查和验证声明：第二阶段是进口商对声明和所有支持文件（如果是红线）进行检查和验证。同样，电子卡体系统验证给定的数据并在几秒钟内与电子付款结合发出声明和付款号。此外，选择性配置文件系统将验证传输数据，并指定商品声明为绿线或红线。
3.支付进口关税和税款：第三阶段是支付适用的职责和税款和/或担保。目前有2个用于支付进口关税和税款的选项：海关部门的付款以及通过电子支付系统付款。
4. Inspection and Release of Cargo:最后阶段是检查并最终从海关托管中释放货物。
a. In case of green line, An importer submits the verified Declaration together with the payment receipt at appropriate warehouses for the release of goods. At this stage, cargo data is screened against predetermined selectivity criteria in order to indicate whether the Declaration is under a Red Line (requiring thorough physical inspection ) or a Green Line (permission of release). A Green Line Declaration is cleared within a few minutes without Customs intervention. Then, the cargo status is electronically sent to both the Port Authority and the importer/Customs broker.
b。如果是红线，预定的选择性标准表明该货物是红线，港口管理局在释放货物之前将货物授予货物容器进行物理检查。