International Journal of Academic and Applied Research (IJAAR)   Year: 2021 | Volume: 5 | Issue: 4 | Page No.: 3-14 The Impact of Accreditation on Laboratories Performance Regarding ISO/IEC 17025:2017 (A Case Study: Nano for Measurement and Calibration Center, Khartoum State- Sudan) Shareef Mohmoud Hassan Mohamed, Tayseer Elamin Mohamed Elfaki, Ammar M. S. Abdalla Abstract: This study aimed to assess the impact of accreditation on laboratories performance regarding ISO/IEC 17025:2017 in Nano for Measurement and Calibration Center, Khartoum State- Sudan. A descriptive case study was conducted during the period from November 2020 to March 2021. A questionnaire was used as data collection tool to achieve the study objective. Thirty four questionnaires were distributed to all laboratory employees in Nano for Measurement and Calibration Center, the laboratory employees were responded with percentage of (100.0%). The data were analyzed using Statistical Package for Social Sciences (SPSS); the methodology used was the descriptive correlation by using Chi-square test. The study showed that there was a statistically significant relationship between accreditation and validity of results issue by laboratory according to requirements of ISO/IEC17025:2017 in Nano for Measurement and Calibration Center. The study reflected that there was a statistically significant relationship between accreditation and the performance and efficiency of employees according to requirements of ISO/IEC17025:2017 in Nano for Measurement and Calibration Center. In addition to, there was a statistically significant relationship between accreditation and customer satisfaction according to requirements of ISO/IEC17025:2017 in Nano for Measurement and Calibration Center. The study revealed that there was a statistically significant relationship between accreditation and financial returned to the laboratory according to requirements of ISO/IEC17025:2017 in Nano for Measurement and Calibration Center. The study concluded that accreditation improved laboratories performance regarding ISO/IEC 17025:2017 in Nano for Measurement and Calibration Center, Khartoum State- Sudan.