In a similar manner to "subject to drydocking clause", this qualification indicates are in agreement to all the terms provided one party accepts the wording of a clause setting out the rights and responsibilities of the parties should the event mentioned take place. Indeed, there are many clauses in a charterparty, some printed and some as "Rider clauses", which may be given importance during the negotiations, for example, the ITF and the "boycott clause" in the case of Pollux v. Louis Dreyfus, 1978. Clauses referring to specific situations can either be main terms or "details".