ndividual worker data. 7 1.5 Changes from 2024 to 2025 children’s social work workforce census 1.5.1 New data items The following data items have been added at local authority level: • Recruitment bonus <RecruitmentBonus>, see section 3.3.4 • Retention bonus <RetentionBonus>, see section 3.3.5 • Performance Reward <PerformanceReward>, see section 3.3.6 • Car user allowance <CarAllowance>, see section 3.3.7 • Relocation package <RelocationPackage>, see section 3.3.8 • Regional weighting <RegionalWeighting>, see section 3.3.9 • Cost of Social Work England (SWE) registration <CostSWE>, see section 3.3.10 • Disclosure and Barring Service (DBS) checks <CostDBS>, see section 3.3.11 • Other allowances and additional payments <OtherAllowances>, see section 3.3.12 The following data items have been added at social worker level: • Base salary <BaseSalary>, see section 3.4.22 • Recruitment and retention payments <RRPayments>, see section 3.4.23 • Other additional payments <OtherPayments>, see section 3.4.24 1.5.2 Deleted data items The following data items have been deleted: • <QualInst> (N00583) • <CFKSSstatus> (N00644) 1.5.3 Validation rule changes Validation checks will be applied to your data once it has been loaded into COLLECT. These checks will identify missing and invalid data, and other anomalies. There are new validation rules in this collection, along with amendments to some existing rules. The validation checks can be found in the accompanying validation rules document for this collection, available on our website. 8 2. Message header Section 4 describes the XML format for the return of the data. The data items required within the header are as follows: Survey collection name <Collection> (N00600) will be ‘CSWW’ Description: Name of the data collection is CSWW Survey y