Duration of copyright in published editions of authorial works under this Part
19.—(1)  This regulation applies where copyright subsists in a published edition of an authorial work only because of the operation of this Part.
(2)  Despite any provision of the Act, copyright in the published edition expires upon the expiry of the equivalent protection of the edition under the law of the country of origin of the published edition.
(3)  For the purposes of paragraph (2), the country of origin of a published edition of an authorial work is whichever of the following countries that provides the longest term of equivalent protection for the edition:
(a)the country (being a reciprocating country) in which the edition was first published;
(b)the country (being a reciprocating country) of which the publisher was a citizen or national when the edition was first published;
(c)the country (being a reciprocating country) in which the publisher was resident when the edition was first published;
(d)the country (being a reciprocating country) under the law of which the publisher (being a body corporate) was incorporated when the edition was first published.