The rise of zebrafish as a research model has been dramatic. Given the global nature of the work, the rise in shipping zebrafish as a laboratory species has been sharp. Up until this point the majority of laboratory animals that were shipped have been mammalian species and both legislation and regulation reflects this and can, at times appear to hinder the shipping of laboratory fish.International flight regulations and changes in laboratory animal legislation have ended the days of carrying embryos through customs in one's pockets and we now need to comply with international laws, which, at times, can be very confusing and often counter intuitive. This presentation will examine IATA and airfreighting regulations that apply to fish and will then go onto look at changes in laboratory animal welfare legislation and regulation. It will explore the paperwork required to make exporting and importing of fish internationally go as smoothly as possible and also look at some of the oddities of these regulations, using European legislation as an example.