The mexican decree of december 24, 1997, NAFTA and TRIPS. Layout-designs legislation is made a part of mexican industrial property legislation. The treaty of Washington. Registration of a Layoud-design is obligatory. Originality and novelty. Examination as to form only. Good faith merchants and knowledge of the unauthorized reproduction of a registered Layout-design as a condition to take legal action. International exhaustion of rights. Marking requirements or notice.