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Drugs of Abuse in Urine (DAU)

Our Drugs of Abuse in Urine (DAU) scheme is designed to provide an independent performance assessment of laboratories and clinics that provide routine services for detection of drugs of abuse in urine.

Human urine has been used for many years to detect the presence of illicit drugs. Urine testing may be requested for a variety of reasons, including health care, occupational monitoring, insurance screening, legal and forensic purposes. Errors in tests could have severe consequences, such as dismissal from work or miscarriage of justice.

Laboratories and clinics are encouraged to participate in suitable PT/EQA schemes to ensure the highest standard of drug testing is achieved through independent assessment of measurement quality.The operation of the LGC DAU scheme is supported by an Advisory Group consisting of members of professional bodies, scheme participants, and others experienced in the field. The scheme reports on the performance of UK participants (who have clinical responsibilities) to the National Quality Assurance Advisory Panels for Chemical Pathology.

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{{ "Please see individual products for specific accreditation status" | truncate(70) }} See our accreditations

ISO/IEC 17043
ISO 9001

Scheme Information


Despatch Date

Reporting Deadline


26 October 2020

30 November 2020


11 January 2021

15 February 2021


19 April 2021

24 May 2021


26 July 2021

31 August 2021


18 October 2021

22 November 2021

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