Certificates are valid for one year from issuance. Renewals follow a streamlined re-application — the same scheme-specific form is used, with the bureau reviewing what has changed since the last audit and adjusting the audit scope accordingly.
At least one surveillance audit is conducted during the validity period — announced or unannounced, at the bureau's discretion — to confirm the system remains in conformance under real operating conditions.
Material changes must be declared promptly: new ingredients or suppliers, formulation revisions, a new facility or change of ownership. The bureau will determine whether a re-audit is required, and the UHB Quality Mark must not be applied to unverified changes.
Surveillance audits
≥ 1 per cycle