The specific arrangements and safeguards for implementing freedom of movement were spelled out in the Schengen Convention signed by the five countries in 1990, entering into force about five years later.
Precizni aranžmani i zaštitni mehanizmi za implementaciju slobode kretanja izneti su u Šengenskoj konvenciji koju je pet zemalja potpisalo 1990, a koja je stupila na snagu otprilike pet godina kasnije.