Impact of SAAC accreditation on laboratories in Saudi Arabia according to ISO/IEC 17025:2017

This study evaluates the impact of Saudi Accreditation Center (SAAC) accreditation on laboratories in Saudi Arabia according to the ISO/IEC 17025:2017 standard by analysing nonconformities observed in 44 laboratories, namely, 7 calibration laboratories and 37 testing laboratories. Each laboratory was assessed by comparing nonconformities identified during initial versus periodic assessments, providing insights into the impact of accreditation on the quality of the laboratory system. Statistical analysis was conducted using descriptive statistics, paired t tests, and effect size calculations to evaluate pre- and postaccreditation nonconformities. The results revealed a significant reduction in nonconformities for both laboratory types following accreditation. The calibration laboratories exhibited a 46% reduction in nonconformities, while the test laboratories demonstrated a 41% reduction. These findings affirm that SAAC accreditation significantly improves laboratory compliance, reduces nonconformities and enhances quality and reliability. The study concludes that SAAC accreditation plays a pivotal role in increasing operational excellence in laboratories across Saudi Arabia, supporting quality infrastructure and regulatory compliance.