ISO 24671:2024

Overview

ISO 24671:2024 - Road vehicles - Qualification and certification of technical personnel dealing with natural gas vehicles (NGVs) - defines requirements for qualifying and certifying personnel who perform operations on natural gas vehicles and related fuelling systems. The standard targets the safety-driven competency levels required by different roles and specifies criteria for third‑party conformity assessment schemes. Certification at levels 3 and 4 is required (see ISO 23684 for the competence level definitions referenced in the standard).

Key topics and requirements

• Scope and responsibilities - Roles and duties for certification bodies, authorized qualification bodies, training providers, employers, applicants and examiners are defined.
• Qualification figures and levels - Classification of personnel roles and competency levels (Levels 1–4), with certification specifically required for Level 3 (fuelling station technical manager) and Level 4 (NGV technical manager).
• Eligibility and training - Requirements for eligibility, recognized training course formats, evidence of training, and minimum training duration (specified in the standard).
• Competence assessment - Combination of written theoretical exams, practical examinations and operational case assessments. Examinations include basic elements and role‑specific tests (e.g., fuelling station operations, NGV fuel-system tasks).
• Certification and recertification - Rules for certification administration, issuance, maintenance, renewal, suspension and withdrawal of certificates. The standard also sets out procedures for recertification and re‑examination.
• Record keeping and conformity assessment - Documentation requirements for certification bodies and employers; this document is oriented to third‑party schemes but can inform first‑ and second‑party arrangements.

Practical applications and who uses this standard

ISO 24671:2024 is used by organizations that need to ensure safe, standardized competence of NGV personnel:

• Certification bodies and conformity assessment organizations implementing third‑party NGV personnel certification schemes.
• Training providers designing NGV technician and manager courses to meet recognized competency criteria.
• NGV fleet operators, fuelling station owners, and maintenance workshops that employ or contract technicians for assembly, inspection, maintenance, repair and commissioning of NGVs and fuelling systems.
• Regulators and safety authorities adopting consistent competence requirements for NGV operations and infrastructure.
• Employers and HR teams using standardized certification to recruit, qualify and maintain a skilled NGV workforce.

Related standards

• ISO 23684 - Defines competence levels referenced by ISO 24671 for NGV personnel.
• ISO/IEC Directives are referenced for the development and maintenance approach of ISO documents.

Keywords: ISO 24671:2024, NGV certification, natural gas vehicles, technical personnel qualification, fuelling station technical manager, NGV technical manager, training and examination, competency standard.