Clarify whether an interceptor/decorator enabled for a bean archive must be packaged in a bean archive

There is a TCK test in which an archive with the beans.xml file enables an interceptor (by listing the interceptor class name in beans.xml). The interceptor class is packaged in another library archive which is not a bean archive. It is not clear from the specification if an interceptor bound using interceptor bindings may only be packaged in a bean archive or whether a CDI implementation should pull the interceptor definition based on the declaration in the beans.xml file even if the interceptor is outside of a bean archive.