Office for Statistics Regulation Skip to content UK Statistical System UK Statistics Authority Code of Practice Office for Statistics Regulation Featured items News Statement: Making comparisons using NHS referral to treatment times (RTT) and waiting times statistics News Navigate statistics ahead of May elections Publication Compliance review of Abortion statistics for England and Wales News The refreshed Code of Practice for Statistics Shortcuts: Code of Practice Our work on data about sex and gender identity Our Guide to the UK Statistical System Sign up for our newsletter Latest updates: Mary Gregory to Ed Humpherson: Update to ONS’s Long-term international migration estimates 23 April 2026 Rob Kent-Smith to Andrea Prophet: Compliance review of abortion statistics for England and Wales 7 April 2026 Penny Young to Julie James MS: Welsh apprenticeships 2 April 2026 Siobhan Tuohy-Smith to Stephanie Howarth: Estimates of additional housing need 31 March 2026 Highlighted regulatory work: Compliance review of Estimates of additional housing need 31 March 2026 Compliance review of statistics from the Cyber Security Breaches Survey 20 March 2026 NHS England’s Referral to Treatment RTT 19 March 2026 Compliance review of Family Spending statistics 10 February 2026 Compliance review of inpatient, day case and outpatient stage of treatment waiting times produced by Public Health Scotland 27 January 2026