# CTAD: commissioning guidance

Source: https://www.keypedia.com/records/uk_mhra_guidance/uk-mhra/b2dede08-9b6b-43d1-9e9c-fce055a1ade1
Type: Guidance
Published: September 30, 2015

> The Chlamydia Testing Activity Dataset (CTAD) serves as the primary regulatory framework for collecting and monitoring chlamydia screening data across England. Managed through NHS and Local Authority-commissioned laboratories, the dataset became a mandatory national Information Standard (ISB 1528) in April 2012, superseding previous fragmented data sources. The guidance was significantly updated in January 2015 following amendments authorized by the Standardisation Committee for Care Information (SCCI1538 Amd 13/2014). Although the document does not list specific inspection violations, it addresses critical issues regarding data quality and completeness within the national health system. Required actions for participating laboratories include aligning their reporting mechanisms with the updated 2015 standards to ensure a comprehensive overview of screening activity. By standardizing data collection from both primary care and community services, the UK health authorities aim to enhance the reliability of public health statistics. Compliance with these protocols is essential for laboratories to meet national information standards and support the effective tracking of sexually transmitted infections. This summary reflects the mandatory requirements for entities involved in chlamydia testing to maintain rigorous data integrity.

---

## Content

Chlamydia Testing Activity Dataset ( CTAD ) collects data on all chlamydia tests undertaken in England from NHS laboratories and LA /NHS commissioned laboratories, to measure screening activity. CTAD became mandatory in April 2012 (as a national NHS Information Standard, ISB 1528) superseding the National Chlamydia Screening Programme ( NCSP ) and the non- NCSP non- GUM (NNNG) data sources of primary care and community service chlamydia data. This guidance was updated in January 2015 to reflect amendments to CTAD authorised by the Standardisation Committee Care Information (SCCI1538 Amd 13/2014) , and aim to support and improve CTAD data quality and completeness.

## Attachments

- [CTAD: commissioning guidance (2015 update)](https://assets.publishing.service.gov.uk/media/5a7f7b2be5274a2e87db61ce/CTADcommissioning2015v5.pdf)