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Overview — QMS Ordinance (MO 169)

JP-unique

Ministerial Ordinance 169 (QMS Ordinance) is Japan's primary QMS standard for medical device manufacturers. Its full Japanese title is 医療機器及び体外診断用医薬品の製造管理及び品質管理の基準に関する省令. It aligns closely with ISO 13485 but has Japan-specific requirements — most notably around the MAH's quality oversight obligations — that have no equivalent in ISO 13485.

What MO 169 requires​

MO 169 establishes the quality management system requirements that all manufacturing sites (domestic and foreign) supplying devices to Japan must comply with. It covers:

  • Management responsibility — quality policy, management review, designating a quality management representative
  • Resource management — personnel competence and training, infrastructure
  • Product realisation — planning, design controls, purchasing, production and process controls
  • Measurement, analysis, and improvement — internal audits, monitoring and measurement, CAPA, complaint handling

Scope — which manufacturers must comply​

MO 169 applies to:

  • Domestic manufacturers holding a manufacturing business licence under the PMD Act
  • Foreign manufacturers registered under the FMR system (Foreign Manufacturer Registration)
  • MAHs — the MAH bears responsibility for ensuring its contracted manufacturers comply with MO 169

Relationship to the PMD Act​

MO 169 is issued under the authority of the PMD Act. PMDA and prefectural governments inspect manufacturing sites against MO 169 requirements as part of both pre-approval QMS inspections and routine surveillance inspections.

Key differences from ISO 13485​

While MO 169 and ISO 13485 cover substantially the same ground, MO 169 has some specific additions:

  1. MAH quality oversight obligations — MO 169 explicitly requires the MAH to oversee the quality management of its contracted manufacturers, including through periodic audits. This MAH-level quality oversight layer is not part of ISO 13485.

  2. GPSP integration — MO 169 requires the QMS to interface with the MAH's GPSP post-market surveillance obligations (complaint and adverse event data flow between the manufacturer and MAH).

  3. Labelling and approval document control — Japan-specific requirements for controlling the approved intended use and labelling as quality documents.

2021 revision — ISO 13485:2016 alignment​

MO 169 was revised in 2021 to align with ISO 13485:2016. Manufacturers previously certified to ISO 13485:2016 found the transition to updated MO 169 relatively straightforward, as the substantive requirements are closely harmonised.