In this Division “foreign national” means a person who is not a citizen of Saint Lucia but does not mean—
(a) a person who holds a permit issued under the provisions of the Immigration Act or any other enactment replacing it which entitles him or her to reside permanently in Saint Lucia;
(b) a person under the age of 18 years who is the child, stepchild of a citizen of Saint Lucia or child adopted in a manner recognized by law by a citizen of Saint Lucia.