Overview
ISO 22552:2025 - Space systems - Manufacturing readiness review (MRR) sets out general requirements for conducting a Manufacturing Readiness Review (MRR) for deliverable space products. The standard defines the purpose, organisation and three-step process for MRR: initiation (document preparation and review-condition confirmation), implementation (document review, on‑site review, meeting review), and post‑review activities. It applies to qualification and flight models and requires a production baseline to be established before manufacturing can start.
Key topics and requirements
- Purpose of MRR: verify that product definition, manufacturing documentation, processes, personnel, materials, parts and facilities are ready for production and that manufacturing execution meets customer and project requirements.
- Three-step MRR process:
- Initiation: prepare the MRR report, manufacturing plan and manufacturing baseline; confirm product qualification and review readiness.
- Implementation: organise the review board (usually led by a product assurance expert); perform document review, on‑site review (personnel, equipment, environment, procured sources, procedures) and meeting review.
- After MRR: document outcomes and follow up on corrective actions; only when MRR is passed may manufacturing commence.
- Manufacturing baseline: a confirmed set of documents describing manufacturing status (design drawings, process documents, product assurance records).
- Risk evaluation: items not meeting criteria require assessment of project risk per ISO 17666.
- Scalability: MRR scope and rigor can be adjusted based on product complexity, maturity and criticality; periodic or batch MRRs are allowed for recurring production.
- Deliverables: Annex A (MRR report) and Annex B (manufacturing plan) provide informative guidance on documentation.
Applications and users
ISO 22552:2025 is intended for organisations involved in manufacturing deliverable space products, including:
- Suppliers and prime contractors conducting MRR prior to production start
- Manufacturing, design and product-assurance teams preparing and reviewing baselines, processes and qualifications
- Procurement and quality departments assessing material/component readiness and storage/inspection procedures
- Programme managers and auditors ensuring milestone compliance and risk mitigation
Practical benefits include improved production preparedness, reduced manufacturing risk, harmonised review practices for international cooperation and clearer evidence to support production start decisions.
Related standards
- ISO 10795 - Space systems - Programme management and quality - Vocabulary
- ISO 14300-1 - Space systems - Programme management - Structuring of a project
- ISO 17666 - Space systems - Programme management - Risk management
- ISO 21349 - Space systems - Project reviews
Keywords: ISO 22552:2025, Manufacturing Readiness Review, MRR, space systems, manufacturing baseline, production readiness review, supplier, product assurance, quality control.
