Customs clearance involves the process of authorizing the import or export of goods across international borders. While it can be a complex and detailed process, I can provide you with a simplified overview in two lines:

1. Customs clearance includes documentation review, payment of duties and taxes, and compliance with regulations to facilitate the legal entry or exit of goods through a country’s customs authority.

2. It ensures that imported or exported items meet the necessary requirements, such as proper labeling, valuation, and classification, to prevent smuggling, protect public health, and collect revenue for the government.