Today, there are only two levels of EU legal acts, treaty articles and so-called secondary law - regulations, directives, decisions, recommendations and opinions.
The EU Parliament adopted the Bourlanges-report on the hierarchy of EU acts in December 2002.
The future
The Convention discussed an additional higher level of legal act including “organic laws”. This refers to measures between treaty articles, EU law and framework law, but this was not adopted.Links
See also delegated acts and the report from the Convention working group on simplification.