# The Civil Procedure Rules 1998, Rule 54.9: Failure to file acknowledgment of service


(1) Where a person served with the claim form has failed to file an acknowledgment of service in accordance with rule 54.8, he—
(a) may not take part in a hearing to decide whether permission should be given unless the court allows him to do so; but
(b) provided he complies with rule 54.14 or any other direction of the court regarding the filing and service of—
(i) detailed grounds for contesting the claim or supporting it on additional grounds; and
(ii) any written evidence,
may take part in the hearing of the judicial review.
(2) Where that person takes part in the hearing of the judicial review, the court may take his failure to file an acknowledgment of service into account when deciding what order to make about costs.
(3) Rule 8.4 does not apply.

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Source: https://www.legislation.gov.uk/uksi/1998/3132/rule/54.9 (the official version)
Page: https://openlegislation.uk/civil-procedure-rules-1998/rule-54.9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.