Three organisations gained accreditation this week from NHS Evidence, the NHS's clinical evidence website.
They were NICE's centre for clinical practice (CCP), its centre for health technology evaluation (CHTE) of single technology appraisals and the Scottish Intercollegiate Guidelines Network (SIGN).
The NHS Evidence accreditation logo will now appear next to these organisations' guidelines in search returns on the website.
Guidance produced by these organisations makes up over 20% of the 9,407 guidelines on NHS Evidence.
Half of the guidelines accessible through the website are expected to have been assessed for accreditation by next autumn.
NHS Evidence CEO Dr Gillian Leng said: 'I would like to congratulate SIGN, NICE CCP and NICE CHTE on achieving NHS Evidence accreditation; this ‘seal of approval' gives staff confidence in the quality of information provided by these organisations and reassurance that using this guidance will help them deliver good patient care.'
