These Regulations, made under sections 131 to 133 of the Welfare Reform Act 2012 (“the 2012 Act”), prescribe the extent of information-sharing which is permitted under those sections for purposes relating to entitlement, based on receipt of a relevant social security benefit, to health service benefits such as exemptions from National Health Service charges, free sight tests, and payments or vouchers towards expenses or appliances – and to related enforcement action.