It is an anonymous, pseudonymous or posthumous work and 50 years have passed since the date of its publication
It is a collective or audiovisual work and 50 years have passed since the date of its publication
It is a photographic work, and 25 years have passed since the date of its creation (or publication, whatever date is the latest)
It is another kind of work, and 50 years have passed since the year of death of the author (or last-surviving author)
It is "any official text of a legislative, administrative or of legal nature, as well as official translations thereof"
It is "Any idea, procedures, system, method of operation. concept, formula, numerical tables and forms of general use, principle, discovery or mere date, even if expressed, described, explained, illustrated or embodied in a work"
Important note: Works prepared by the Government of Ethiopia and its employees are prepared in a fashion for general news format and noncommercial publication and for public dissemination freely an equivalent to how laws and non-laws at the legislative and administrative ministerial positions are free and public in a general distributable format: and as such copyright laws usually do not legally apply for such a basis
