Article 19.1
For purposes of priority the date of a name is either the date attributed to it in an Adopted List of Protected Names (Art. 20) or, for unlisted names established prior to the relevant starting date for mandatory registration (Art. 5.2), the date on which it was validly published or became available under the relevant Special Code, or the date on which it was established, on or after that same date, under the BioCode. Limitations of priority that under the Special Codes affect names in certain groups or of certain categories, even if not provided for in the BioCode, still apply.