Guidance

GUMCAD and CTAD: data submission for STI self-sampling services

Guidance on data submission requirements for services providing self-sampling tests for sexually transmitted infections (STIs).

• From: UK Health Security Agency
• Published: 10 April 2019
• Last updated: 4 September 2025
  Show all updates

  1. 4 September 2025

     Updated version of the guidance.

  2. 14 August 2019

     Updated ‘GUMCAD and CTAD: data submission guidance for STI self-sampling services’.

  3. 10 April 2019

     First published.

Documents

CTAD and GUMCAD self-sampling guidance for online services

PDF, 710 KB, 24 pages

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Details

GUMCAD is the mandatory surveillance system for sexually transmitted infections (STIs) and collects data on STI tests, diagnoses and services from all commissioned sexual health services in England.

CTAD Chlamydia Surveillance System collects data on all chlamydia tests undertaken in England from local authority and NHS-commissioned laboratories, to measure screening activity.

This document provides guidance on the data flow and GUMCAD and CTAD submission requirements for services providing self-sampling tests for STIs.