The ABL activities comply to the OECD guidelines of Good Laboratory Practice1 and as such the organization is freqeuntly audited by the Dutch government as well as by its sponsors or customers.

ABL has been successfully audit by the FDA.

Although quality has always been at the base of our activities, ABL was formally accredited to GLP compliant by the Dutch regulatory authorities since 1992 placing it amongst the first three commercial laboratories in the Netherlands in compliance with the OECD guidelines for the activities of analytical and clinical chemistry.
The most recent inspection by the Dutch Health Care Inspectorate (IGZ), Ministery of Health, Welfare and Sport was in 2016.

1) See the OECD website on Good Laboratory Practice