The so-called Type I PRIMA dates back to the late 1960s, in
Belgium. Under Belgian law, the interest in respect of the underlying securities held by an investor and recorded on the books of its intermediary is treated as a different asset from the underlying securities. Thus the Belgian approach is an application of PRIMA, as well as being linked to the
lex rei sitae tradition. Such an approach causes problems in some legal systems, notable of which are those of
Japan and
Germany. Under both their systems, an investor would be treated as the direct owner of the underlying securities even though the security is held through tiers of intermediaries. The direct ownership in the underlying securities makes it difficult to argue that the location of the asset is at the level of an intermediary.
Adoption in Europe; and anticipated changes Article 9(2) of the
European Union's Settlement Finality Directive of 1998 introduced PRIMA in all European Union member states. In Germany, where investors have direct ownership rights in underlying securities, implementing Art 9(2) into domestic law has severed the connection with the traditional
lex rei sitae approach. In 2002, the
European Community passed the European Union's Collateral Directive, which is also based on a Type I application of PRIMA. Under Art 9, characterisation, perfection and other issues relating to the provisions of securities as collateral are governed by the law of the State where the securities account is maintained. The majority of member states have yet to implement this directive. Switzerland has now signed the Convention. ==Type II (a non-PRIMA approach)==