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Referencing NVLAP Accreditation and

Use of the Accredited Laboratory Combined ILAC MRA Mark

NVLAP Policy for Referencing Accreditation

NVLAP controls the use of the term NVLAP, the NVLAP logo, the NVLAP symbol and the Accredited Laboratory Combined ILAC MRA Mark, and ensures that accredited laboratories express their accredited status in a manner that is clear, accurate, and not misleading.  This policy applies to test and calibration reports, letterheads, contracts, business cards, brochures, advertising, websites, and any other use not specified in NIST Handbook 150.

NVLAP meets the requirements of ILAC-P8, ILAC MRA Supplementary Requirements and Guidelines for the Use of Accreditation Symbols and for Claims of Accreditation Status by Accredited Laboratories and ILAC R7, Rules for the Use of the ILAC MRA Mark.

DefinitionsNVLAP logo:The graphic version of the NVLAP acronym. Use of the NVLAP logo alone is reserved for NVLAP. Accredited laboratories are permitted to use the NVLAP logo only as part of the NVLAP symbol. NVLAP symbol:The NVLAP logo combined with the NVLAP code and type of accreditation activity (testing or calibration). The NVLAP symbol is the graphical representation that an accredited laboratory is permitted to use in referencing its accredited status.


This page has been created to provide information about referencing NVLAP accreditation, including the conditions for using the NVLAP symbol and the term NVLAP.


NVLAP has a policy governing the protection and use of its accreditation symbol in accordance with ISO/IEC 17011, Conformity assessment – General requirements for accreditation bodies accrediting conformity assessment bodies, clause 8.3. NVLAP has published the requirements for referencing NVLAP accreditation in NIST Handbook 150, NVLAP Procedures and General Requirements, section 1.8 and Annex A, and Annex E.

NVLAP must also comply with the requirements found in the International Laboratory Accreditation Cooperation (ILAC) Mutual Recognition Arrangement (MRA) in order to be a signatory. This set of requirements is published in ILAC-P8, regarding the use of accreditation symbols and for claims of accreditation status by accredited laboratories, and ILAC-R7, regarding the use of the ILAC MRA Mark.

Apply for use of the Accredited Laboratory Combined ILAC MRA Mark

NVLAP has obtained approval from the International Laboratory Accreditation Cooperation (ILAC) for the use of the ILAC MRA Mark under the Rules for the Use of the ILAC MRA Mark, ILAC-R7;05/2015. This approval allows NVLAP to grant permission for its laboratories to use the Accredited Laboratory Combined ILAC MRA Mark for accreditation activities covered by the scope of NVLAP's ILAC MRA signatory status. Presently, this includes all the NVLAP Laboratory Accreditations Programs (LAP) except Voting System Testing LAP. The combined ILAC MRA Mark will not be available for accreditation activities covered by the scope of the Voting System Testing LAP as this program is not covered under the NVLAP signatory status.

Use of the combined ILAC MRA Mark is optional. Laboratories that wish to obtain approval for the use of the combined mark must complete an application request form and provide the additional supporting information. NVLAP's written approval must be issued to the applicant prior to any use.

Please contact the NVLAP Quality Manager at nvlap@nist.gov if you have any questions about Annex E requirements or information regarding a request for permission to use the Accredited Laboratory Combined ILAC MRA Mark.