In this article originally published by World Trademark Review, Tilleke & Gibbins senior associate David Mol shares advice on how to collaborate effectively with customs officials at Cambodian border points and ports, offering a guide on how to successfully monitor for—and enforce against—counterfeit and grey market goods. Can rights holders record trademark and brand-related IP information with Customs and, if so, how? At present, there is no formal customs IP recordal system in place in Cambodia. However, rights holders may consider: a request letter to Customs; or recordal of an exclusive distributorship. Request letter to Customs A request letter to Customs would be an effective measure in cases where a rights holder is aware of a specific customs checkpoint that is being used to smuggle infringing goods. The rights holder may request to set up a meeting with Customs at the checkpoint to provide officials with: guidance on the issue; the IP rights involved; and information on product identification. The rights holder may further request the official’s assistance in monitoring shipments for certain goods. Customs has been open and cooperative in the past, setting up direct communication lines between rights holders and border officials. Officials then: monitor shipments; exchange sighting reports; and set up inspections where applicable. However, this option is not directly regulated under any laws or regulations, and can only be considered as an ad hoc approach in cases where the rights holder is aware of issues at a specific checkpoint. We usually do not recommend using this approach to alert all checkpoints in Cambodia, as it is rather time-intensive, requiring close cooperation and active liaison with officials. Instead, targeting specific checkpoints has proven to work in our experience. A request letter to Customs may apply to all types of intellectual property. However, a recently issued regulation that addresses suspensions