This FAQ answers the most common questions about Good Manufacturing Practice (GMP) for manufacturers in pharmaceuticals, food, cosmetics, and medical devices. Use it as a quick reference before planning your certification or inspection.
Q: What is GMP?
A: GMP (Good Manufacturing Practice) is a quality assurance system that ensures products are consistently produced and controlled to quality standards appropriate to their intended use. It covers people, premises, equipment, materials, processes, and documentation.
Q: Is GMP mandatory?
A: For regulated products such as drugs, food, dietary supplements, and medical devices, GMP compliance is legally required. Cosmetics follow GMP through standards such as ISO 22716. Non-regulated products may adopt GMP voluntarily.
Q: What is the difference between GMP and cGMP?
A: “cGMP” stands for “current” Good Manufacturing Practice. The U.S. FDA uses CGMP to emphasize that manufacturers must apply up-to-date, science-based methods. Outside the U.S., “GMP” is the common term for the same concept.
Q: How do I get GMP certified?
A: The pathway is: identify the applicable framework, conduct a gap analysis, build documentation and training, implement process controls, run internal audits, then undergo external inspection by the authority or an accredited certification body.
Q: How much does GMP certification cost?
A: There is no fixed price. Cost depends on facility size, scope, readiness, the framework, and the certification body’s rates. Request itemized quotes from accredited bodies after defining your scope.
Q: How long does GMP certification take?
A: Timelines vary. Implementation can take several months, the on-site audit usually spans a few days, and the certification decision follows after the report is finalized. Your starting readiness is the biggest factor.
Q: Who enforces GMP?
A: GMP is enforced by authorities such as the U.S. FDA, the European Medicines Agency and national agencies, and PIC/S participating authorities. Voluntary standards like ISO 22716 are certified by accredited third-party bodies.
Q: Does GMP apply to cosmetics and medical devices?
A: Yes. Cosmetics follow ISO 22716; medical devices in the U.S. follow 21 CFR Part 820, which became the Quality Management System Regulation (QMSR) incorporating ISO 13485:2016, effective February 2, 2026.
Q: How often is GMP re-inspected?
A: Frequency depends on the product, risk, and authority. Routine surveillance audits and periodic re-inspections are standard, and significant changes to facilities or processes can trigger additional assessments.
Conclusion
GMP is the common language of product quality across regulated industries. If your question is not answered here, our team can help with facility-specific guidance.
Still have questions about GMP? Contact our GMP experts for answers.
References
- U.S. FDA. Current Good Manufacturing Practice (CGMP) Regulations. Retrieved from https://www.fda.gov/
- European Commission. EudraLex Volume 4 — Good Manufacturing Practice. Retrieved from https://health.ec.europa.eu/
- PIC/S. Pharmaceutical Inspection Co-operation Scheme. Retrieved from https://www.picscheme.org/
- ISO 22716:2007. Cosmetics — Good Manufacturing Practices (GMP) — Guidelines.
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