The Whiplash Injury Regulations 2021 Under the Whiplash Injury Regulations 2021, SI 2021/642, reg 1, the tariff for whiplash injuries only applies to causes of action which accrue on or after 31 May 2021. Whiplash Injury Regulations 2021, SI 2021/642, reg 2 sets out the tariff for pain, suffering and loss of amenity in relation to whiplash injuries. Whiplash Injury Regulations 2021 was made following powers conferred by the Civil Liability Act 2018 (CLA 2018). CLA 2018 CLA 2018, s 3 provides: '(1) This section applies in relation to the determination by a court of damages for pain, suffering and loss of amenity in a case where— (a) a person (“the claimant”) suffers a whiplash injury because of driver negligence, and (b) the duration of the whiplash injury or any of the whiplash injuries suffered on that occasion— (i) does not exceed, or is not likely to exceed, two years, or (ii) would not have