Responsible Professional and Legal Representative: Two Distinct Roles in the Dossier

1. Key takeaways

A Guatemalan registration dossier contains two roles that must never be conflated: the responsible professional (profesional responsable) and the legal representative (representante legal). The former is the technical signer: the application form and the change forms are signed and stamped by this person under Article 5.1.2 of NT-37 and the individual change items of Article 6. The latter is the legal actor and the issuer of sworn statements: the renewal sworn statement must be issued by the legal representative and notarised and authenticated under Article 9.2. NT-37 assigns each role its own change category, Article 6.8 for the responsible professional and Article 6.6 for the legal representative. Keeping the two roles distinct matters in practice because each carries a different kind of accountability, each has a different qualification threshold, and each is replaced through a different procedure, so treating them as interchangeable creates errors that surface precisely at signature-critical moments such as filing and renewal.

2. Legal basis

Basis: NT 37, Versión 5-2016 (2016-02-22) for devices and NT 40, Versión 3-2015 for reagents. The provisions above allocate signing authority, appointment authority and sworn-statement authority between the two roles, and define how each role is replaced when personnel change.

3. Expert insights

Insight 1: The two roles draw their qualifications from different sources. The threshold for the responsible professional is a professional licence, pharmaceutical chemist, relaxable on the reagent side to a chemical biologist, while the threshold for the legal representative is the position of legal representative of the company. The former carries technical responsibility; the latter carries legal responsibility. One person may hold both positions at once, but the two responsibilities cannot cover for each other. A company that substitutes one for the other, for example by letting the legal representative sign a technical form or by asking the professional to issue the sworn statement, produces documents that do not meet the standard, and the defect will only be discovered when the submission is reviewed or the renewal is processed, at which point the correction costs time.

Insight 2: Article 6.8.3 requires the appointment document for the new professional. Among the documents for a change of responsible professional is the Nombramiento del nuevo profesional responsable emitido por el Representante Legal, the appointment document issued by the legal representative. This provision ties the two roles together: replacing the technical signer requires an appointment issued by the legal representative, and neither can complete the change alone. In operational terms, a vacancy in either role blocks the replacement of the other. Companies should therefore never leave both positions vacant at the same time, and should confirm before any personnel transition that the remaining role-holder is available and willing to sign the appointment or authorisation that the change procedure requires.

Insight 3: The renewal sworn statement can only come from the legal representative. Article 9.2 for devices and Article 8.3 for reagents both require the legal representative to issue a sworn statement before a notary, confirming that the conditions of the original registration are maintained. The responsible professional cannot perform this function in the legal representative’s place. If a change of legal representative has occurred but the Article 6.6 change procedure was never completed, the renewal will find no qualified issuer for the statement. This is the kind of failure that remains invisible for years and then blocks a renewal at the deadline, so the status of the legal representative of record deserves periodic verification, not just attention at filing time.

Insight 4: The reagent side allows a wider pool of responsible professionals. Article 4.1.2 of NT-40 permits a Químico Farmacéutico or a Químico Biólogo. A reagent company whose technical staff have a chemical-biology background can therefore satisfy the signing requirement without hiring a pharmaceutical chemist in addition. This flexibility reduces staffing cost on the reagent side, but it applies only there: a device registration still requires the pharmaceutical chemist profile, so companies holding both device and reagent registrations cannot assume that one professional profile covers the whole portfolio. Verifying the credential against the applicable standard, product by product, is the safe approach.

4. Practical recommendations

• Confirm both roles at project initiation: the responsible professional for technical signing and the legal representative for legal acts and sworn statements.
• Verify the professional’s licence against the applicable pathway; on the reagent side the credential may be a chemical biologist.
• Route personnel changes through the corresponding change procedure, Article 6.8 for the professional or Article 6.6 for the legal representative, without mixing the two.
• When replacing the responsible professional, obtain the appointment document issued by the legal representative under Article 6.8.3.
• Before scheduling a renewal, confirm that the legal representative is in office and able to issue the notarised sworn statement.

5. Verification checklist

• □ The responsible professional’s licence has been verified against the applicable pathway
• □ The identity and status of the legal representative have been confirmed
• □ The two change provisions, Articles 6.6 and 6.8, are kept distinct in internal procedures
• □ Appointment documents for professional changes are issued by the legal representative
• □ Before renewal, the legal representative can issue the notarised sworn statement

Regulatory information verified as of 29 October 2026.

How GRZAN can help. GRZAN provides medical device and IVD registration, quality system, authorised representative and local testing support for the Guatemalan market. Our team manages Ministry of Public Health and Social Assistance (MSPAS) registrations, coordinates import and distributor requirements, and supports post-market vigilance obligations. Business enquiries: info@grzanglobal.com