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ema entidad mexicana de acreditación, a.c., is the first non-government Accreditation Body in México, whose objective is to accredit the Conformity Assessment Bodies, which are test laboratories, calibration laboratories, clinical laboratories, verification units (inspection bodies) and inspection bodies. certification, Proficiency Testing Providers and Greenhouse Gas Emission Verification / Validation Bodies ( OVV GHG ) Producers of Reference Materials and the authorization of Good Laboratory Practices from the OECD.

Proudly, ema has received the highest international recognition, by the International Accreditation Forum (IAF) and International Laboratory Accreditation Cooperation (ILAC) and regional recognition by the Asia Pacific Accreditation Cooperation (APAC) and the Inter- American Accreditation Cooperation (IAAC), the above confirms that ema works in accordance with national and international standards. In the same way, ema has been awarded the Ethics and Values Award in 2005, 2012, 2015, 2017 and 2019 granted by Confederación de Cámaras de Industriales de los Estados Unidos Mexicanos (CONCAMIN), wich reinforces its quality as a team and commitment as an institution, ema has also obtained the Golden Elite Awards for Quality in 2015, a Socially Responsible Company in 2014 and a Family Responsible Company by promoting good labor practices in 2017 and for the period 2019 - 2022; Great Place To Work since 2014, 2016, 2018, 2019 and 2020 for being one of the best places to work in Mexico in terms of Diversity and Inclusion.


Act by which an accreditation body recognizes the technical competence and reliability of testing, calibration, and medical laboratories; as well as verification units (inspection bodies); and certification bodies for the Conformity Assessment


Our body has managed to fulfillits activities and objectives thanks to its financing sources, which are:
  1. Initial accreditation services.
  2. Accreditation renewal services.
  3. Surveillance services.
  4. Accreditation services.
  5. Accreditation monitoring.
  6. Testimonials from Conformity Assessment Agents.
  7. Fees and travel expenses.
  8. Courses.
  9. Associate fees.
  10. Investment income.
  11. Projects.
  12. Rate increase.
  13. Other income.


Formerly, Conformity Assessment Bodies were accredited by the Mexican federal government, more specifically through the Dirección General de Normas (DGN) (General Directorate of Standards) of the Secretaría de Comercio y Fomento Industrial (SECOFI) (Ministry of Commerce and Industrial Development), now known as the Ministry of Economy.
Given the changes in the foreign markets, the competitiveness required in a globalised commerce, and aiming to support the national productive plant, the Federal Law on Metrology and Normalization was reformed between 1992 and 1997. Because of this legal transformation, an impartial, inclusive, professional and privately managed body was created in order to perform this important task for Mexico’s productive sector. Thus, after the publication on the 15th of January 1999, in the Official Journal of the Federation of the Ministry of Commerce and Industrial Development’s authorization, ema begins to operate as the first accreditation body in Mexico.


ema’s organizational structure has been established in such a manner that in both, government and collegiate bodies, an impartial structure is kept to provide objectivity, transparency and reliability for accreditations and authorizations. Within this structure, participation of all sectors interested in the development of policies and principles related to contents and functions of the national accreditation system are considered, where no particular interests prevail.  This is properly documented.
All members of ema take the task of ensuring that the policies and procedures under which the body operates are administered in a non-discriminative manner. The services the ema offers are accessible to all applicants whose activities are within the field of consideration. There are no conditions, financial or other, that restrict participation. Access to the services provided by ema is not conditioned by the size of the applicant, nor by membership of any organization or group, nor by the number of already accredited Conformity Assessment Bodies.

ema ensures that its General Assembly, Board of Directors, personnel, assessment committees and subcommittees, technical opinion commissions, appeal commissions, and the technical/testifier evaluators/experts, act always in an objective manner and that they are not collaborating under any undue pressure, be it financial, commercial or conflict of interests that could make them act in a non impartial or discriminatory manner.

ema ensures that a competent Assessment Committee reaches every decision to determine each accreditation, and that every determination is made by different personnel from that who performed the assessment.

ema limits its requirements, evaluations, and decisions to matters related to accreditation, and doesn’t offer the conformity evaluation services that Conformity Assessment Bodies provide, nor counseling that might compromise the objectivity and impartiality in the processes of evaluation, and in the decision over accreditation and acknowledgement.

ema also requires that the accredited CAB’s and the recognized PTB’s, maintain impartiality and integrity in their activities within the field of accreditation and recognition.

ema ensures that the activities performed by its related bodies do not compromise confidentiality, objectivity or impartiality of accreditations. The bodyhas properly analyzed and documented its relationship to these organizations.



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