It is a collective work made anonymously or under a pseudonym and 70 years have passed since the date of date of production, first public presentation or first publication (whichever is latest)
It is a photographic work or a work of applied art and 45 years have passed since the year following the death of the author (or last-surviving author)
It is an artwork or musical/theatre performance and 70 years have passed (as of 31 December) following the year the work or performance was made
It is a piece of music and 70 years have passed following the year of publication or, if publication was not made on the date of first recording, 70 years following the year of recording
It is the work of a broadcasting organization and 35 years have passed since the year of first broadcast
It is another kind of work and 70 years have passed following the year of death of the author (or last-surviving author)
It is one of the "laws and decisions by administrative and judicial organs", an "unpublished speech made in public and not compiled into a book by the author", or "news of the day and reports of simple information regarding events made over social media"
你必須增加美國公有領域標籤顯示為何這個作品在美國屬於公有領域。 請注意少數國家的著作權保護期為70年以上：墨西哥為100年，牙買加為95年，哥倫比亞為80年，瓜地馬拉與薩摩亞為75年，而這些國家不實施較短期限法則，因此該圖片可能在這些國家不被認為是公有領域。宏都拉斯的著作權期限一般為75年，但該國實施較短期限法則。對於在第二次世界大戰期間為法國利益戰死的法國人（更多資訊）、二戰期間參與過蘇德戰爭（俄羅斯稱之為偉大的衛國戰爭）的俄羅斯人，以及蘇聯時期遭到鎮壓，而死後獲得平反的犧牲者（更多資訊），這些人的作品著作權期限會有所延長。 English | 日本語 | +/−
This is the version used by the Angolan government as of the 2010 constitution, as seen here in the official website of the Angolan government [https://www.vicepresidente.gov.ao/wp-content/uploads/2019/02/CRA_PT_VERSAO_DIGITAL.pdf]
