The Guyana National Bureau of Standards (GNBS), operating under the Ministry of Tourism Industry and Commerce is a semi-autonomous governmental organization responsible for Standards and Quality in Guyana.

GNBS was established in March 1985, under Act No. 11 of 1984. It has the legal status of a statutory corporation governed by a National Standards Council (NSC) appointed by the Minister of Tourism Industry and Commerce.

The GNBS is a revenue-generating agency funded by the Government of Guyana. It is the only National Standards Body in Guyana. It is also an ISO 9001:2015 certified and ISO/IEC 17025 accredited agency.

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