reg 21 Revived copyright: saving for acts of exploitation when work in public domain, &c.
(1) No act done before commencement shall be regarded as infringing revived copyright in a work. (2) It is not an infringement of revived copyright in a work— (a) to do anything after commencement in pursuance of arrangements made before commencement at a time when copyright did not subsist in the work, or (b) to issue to the public after commencement copies of the work made before commencement at a time when copyright did not subsist in the work. (3) It is not an infringement of revived copyright in a work to do anything after commencement in relation to a literary, dramatic or musical work or a film made before commencement or made in pursuance of arrangements made before commencement, which contains a copy of that work or is an adaptation of that work if— (a) the copy or adaptation was made before commencement at a time when copyright did not subsist in the work in which revived copyright subsists, or (b) the copy or adaptation was made in pursuance of arrangements made before commencement at a time when copyright did not subsist in the work in which revived copyright subsists. (4) It is not an infringement of revived copyright in a work to do after commencement anything which is a restricted act in relation to the work if the act is done at a time when, or is done in pursuance of arrangements made at a time when, the name and address of a person entitled to authorise the act cannot by reasonable inquiry be ascertained. (5) In this regulation “arrangements” means arrangements for the exploitation of the work in question. (6) It is not an infringement of any moral right to do anything which by virtue of this regulation is not an infringement of copyright.