External evaluations by an international committee of the scientific risk assessment and decision-making processes of the Netherlands Competent Authority for the authorisation of plant protection products and biocides (Ctgb) were conducted in 2013 and 2018. Based on the experience drawn from them, a general guidance for such visitations is suggested. An international visitation committee examined the structure and management of the Authority, its human resources and staff policy, the scientific processes and output, the documentation and communication of its decisions and the mechanisms for keeping up to date with international scientific developments. Attention was paid to the degree of openness and transparency throughout the organisation and in particular when dealing with confidential information. From the experience gained it can be concluded that visitations not aiming at finding mistakes and omissions but instead focusing on recommendations and constructive suggestions will result in cooperation, mutual trust and acceptance of the recommendations made. A follow-up visitation after a few years can be effective in maintaining a traceable, high-level scientific output. In view of the strong drive towards the European Union-wide harmonisation of the regulatory practices of hazardous chemicals, a voluntary evaluation of regulatory authorities’ scientific performance is recommended as a means for organisational learning.

一个国际委员会于 2013 年和 2018 年对荷兰主管当局批准植物保护产品和杀菌剂 (Ctgb) 的科学风险评估和决策过程进行了外部评估。根据从中获得的经验，总体建议对此类访问进行指导。一个国际访问委员会审查了管理局的结构和管理、其人力资源和工作人员政策、科学过程和产出、其决定的文件和交流以及跟上国际科学发展的最新机制。关注整个组织的公开和透明程度，特别是在处理机密信息时。从经验上可以看出，不以找错漏为目的的走访，而是以建议和建设性建议为目的的走访，会带来合作、互信和采纳建议的效果。几年后的后续访问可以有效地保持可追溯的高水平科学产出。鉴于在欧盟范围内统一危险化学品监管实践的强烈推动，建议对监管机构的科学绩效进行自愿评估，作为组织学习的一种方式。几年后的后续访问可以有效地保持可追溯的高水平科学产出。鉴于在欧盟范围内统一危险化学品监管实践的强烈推动，建议对监管机构的科学绩效进行自愿评估，作为组织学习的一种方式。几年后的后续访问可以有效地保持可追溯的高水平科学产出。鉴于在欧盟范围内统一危险化学品监管实践的强烈推动，建议对监管机构的科学绩效进行自愿评估，作为组织学习的一种方式。