It is an anonymous or pseudonymous work and it was made available to the public before 1962 or 95 years have passed since the date it was made available to the public
It is a sound recording, film, broadcasts or cable programme and 95 years have passed since the date it was made available to the public (or creation, whatever date is the latest)
it is a work created by an employee, the copyright is owned by the employer, and 95 years have passed since it was created
It is another kind of work, and the author (or last-surviving author) died before 1962 or 95 years have passed since the year of death of the author (or last-surviving author)