Sierra Leone replaced its pre-shipment inspection with a destination inspection scheme in 2009. The scheme assesses the quality, quantity, value, and customs classification for imports to be declared for clearance and recommends their classification and valuation opinion for the attention of customs.  Imports exempted from this scheme include arms, ammunition, weapons, implements of war, gold and other precious stones, explosive and pyrotechnic products, live animals, scrap metals, crude oil, personal and household effects, supplies for diplomatic missions, and United Nations Organizations, and frozen fish caught by Sierra Leone owned vessels.

Customs, in 2010, introduced the UNCTAD Automated System for Customs Data (ASYCUDA ++) at the Port of Freetown, then expanded it to Lungi International Airport and to the Gbalamuya Border Post with the Republic of Guinea. It was upgraded to the ASYCUDA World, a web-based system improving the processing and reducing clearance times.