GMP as a registration prerequisite

Thai FDA requires that every overseas manufacturing site producing a drug destined for the Thai market be formally accredited under Thai FDA's GMP framework before a marketing authorization can be granted. A manufacturing site that has never previously been registered with Thai FDA must complete the accreditation process before or in parallel with the drug registration dossier review.

In 2011, Thai FDA issued GMP regulations aligned with ASEAN GMP standards and the Pharmaceutical Inspection Co-operation Scheme (PIC/S). Thailand is a PIC/S member. The GMP clearance granted by Thai FDA carries the same validity period as the GMP certificate issued by the competent authority in the country of manufacture: typically 3 years from the date of issuance.

An expired GMP certificate is not a minor administrative gap. A manufacturing site whose GMP accreditation has lapsed cannot have its products approved or renewed by Thai FDA until the accreditation is reinstated. A dossier already in review will be suspended if the GMP certificate for the manufacturing site expires before approval is issued.

PIC/S membership: why it matters for Thai FDA

Thai FDA's GMP accreditation process applies different documentation requirements depending on whether the manufacturing site is in a PIC/S-member country. This distinction has a direct and significant impact on the volume of documentation required and the time needed to assemble the GMP submission.

PIC/S member countries
Manufacturers in PIC/S-member countries submit a GMP application using the PIC/S member checklist. This requires more than 100 documents, including the current GMP certificate from the home country competent authority, the most recent GMP inspection report, site master file, quality management system documentation, and relevant product-specific quality documentation. The PIC/S recognition means Thai FDA can rely on the inspection findings from the home authority rather than conducting an independent full inspection in most cases.
Non-PIC/S member countries
Manufacturers in countries not in PIC/S submit under the non-PIC/S checklist, which requires more than 200 documents. The additional documentation compensates for the absence of a mutually recognized inspection framework. Thai FDA may also be more likely to conduct its own site inspection for non-PIC/S manufacturers, particularly for new drug applications. Preparation time for a non-PIC/S GMP submission is substantially longer than for a PIC/S submission.
Current PIC/S members relevant to pharmaceutical export
PIC/S members include the competent authorities of the EU member states (via EMA), the United States (FDA), Japan (PMDA), Australia (TGA), Canada (Health Canada), South Korea (MFDS), Singapore (HSA), and numerous other jurisdictions. A full list is maintained by the PIC/S Secretariat. Manufacturers based in countries not on this list should plan for the non-PIC/S documentation pathway and its extended preparation timeline.

The GMP clearance application process

Thai FDA's GMP clearance application is submitted by the local registration holder (LAR) on behalf of the overseas manufacturer. The application is product-specific: each drug product must be linked to an accredited manufacturing site for each step of manufacture (active ingredient production, finished product manufacture, packaging). A site accredited for one product does not automatically carry accreditation for another product manufactured there.

Required documents (PIC/S pathway)
Core documents include: the current GMP certificate issued by the home country competent authority; the most recent GMP inspection report from that authority; the site master file (SMF) in the format specified by Thai FDA; quality management system documentation; manufacturing authorization; product-specific batch manufacturing records and validation reports; and, for sterile products, additional environmental monitoring and process validation documentation.
GMP certificate validity and renewal
The GMP accreditation granted by Thai FDA is valid for 3 years and mirrors the validity of the home country GMP certificate. Manufacturers must track this expiry date independently of their marketing authorization renewal (which runs on a 7-year cycle). A GMP certificate that expires before the MA renewal is filed will halt the renewal process. Renewal of the GMP accreditation requires a fresh application with updated documentation reflecting the site's current inspection status.
Site inspections by Thai FDA
Thai FDA retains the right to inspect overseas manufacturing sites directly, independent of PIC/S membership. Inspections are most commonly required for new drug applications and for manufacturing sites that have not previously been registered with Thai FDA. An inspection notice from Thai FDA typically allows 60 to 90 days for preparation, though this may vary. Sites should maintain current inspection readiness as part of their GMP compliance posture, not only when an inspection is anticipated.
Manufacturing changes post-accreditation
A significant change to the manufacturing site after accreditation, such as a facility expansion, a change in the manufacturing process, a transfer of production to a different site, or a change in the batch size beyond the approved range, typically requires notification to Thai FDA and may trigger a variation submission to the marketing authorization. Manufacturing changes that are not reported are a common cause of compliance findings during inspections and renewal reviews.

Maintaining GMP status through the product lifecycle

GMP compliance is not a registration-time event that can be completed and forgotten. It is an ongoing obligation that intersects with the marketing authorization at multiple points across the product's commercial life.

GMP inspection by the home authority
When the home country competent authority inspects the manufacturing site and issues a new GMP certificate, the updated certificate must be submitted to Thai FDA. Thai FDA's GMP clearance validity is tied to the home certificate: an inspection finding that results in a restricted or conditional GMP certificate in the home country may require immediate notification to Thai FDA and could affect the Thai marketing authorization.
Tracking parallel expiry dates
A foreign manufacturer with multiple products registered in Thailand may have GMP accreditation expiry dates, MA expiry dates, and annual import license renewal dates running on different cycles. Failure to manage these in parallel creates gaps in regulatory status. A product cannot be commercially imported into Thailand if any of these three authorizations has lapsed, even if the other two are current.
Deficiencies found during Thai FDA inspection
If Thai FDA conducts a site inspection and identifies deficiencies, the manufacturer must respond with a corrective action and preventive action (CAPA) plan within the timeframe specified by Thai FDA. Unresolved critical deficiencies can result in suspension of the GMP accreditation and, consequently, suspension of the marketing authorization for all products manufactured at that site.

The Vero Approach

GMP compliance management is part of every registration engagement we manage. We prepare the GMP clearance application, coordinate with the overseas manufacturer to gather the required site documentation, and submit through Thai FDA's system. We track GMP expiry dates alongside MA and import license cycles so nothing lapses unnoticed.

When Thai FDA schedules a site inspection, we prepare the manufacturer's documentation for the inspection, brief the site team on Thai FDA's inspection process and expectations, and manage the response to any findings. We have supported both PIC/S and non-PIC/S manufacturers through Thai FDA's accreditation process.

We tell manufacturers early when a GMP renewal needs to start. The documentation assembly for a non-PIC/S submission takes time that cannot be recovered at the end of a 3-year cycle. Planning the renewal in the second year of the accreditation period is the standard we hold ourselves to.

GMP Compliance
for Thai FDA Registration

GMP as a registration prerequisite

PIC/S membership: why it matters for Thai FDA

PIC/S member countries

Non-PIC/S member countries

Current PIC/S members relevant to pharmaceutical export

The GMP clearance application process

Required documents (PIC/S pathway)

GMP certificate validity and renewal

Site inspections by Thai FDA

Manufacturing changes post-accreditation

Maintaining GMP status through the product lifecycle

GMP inspection by the home authority

Tracking parallel expiry dates

Deficiencies found during Thai FDA inspection

The Vero Approach

The wrong start
costs a year. The right one
starts here.

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GMP Compliancefor Thai FDA Registration

GMP as a registration prerequisite

PIC/S membership: why it matters for Thai FDA

PIC/S member countries

Non-PIC/S member countries

Current PIC/S members relevant to pharmaceutical export

The GMP clearance application process

Required documents (PIC/S pathway)

GMP certificate validity and renewal

Site inspections by Thai FDA

Manufacturing changes post-accreditation

Maintaining GMP status through the product lifecycle

GMP inspection by the home authority

Tracking parallel expiry dates

Deficiencies found during Thai FDA inspection

The Vero Approach

Pharmaceutical Regulatory Guides

The wrong start costs a year. The right one starts here.

GMP Compliance
for Thai FDA Registration

The wrong start
costs a year. The right one
starts here.