NORAMET is a regional cooperation in metrology, involving the national measurement laboratories of Canada, Mexico and the United States of America. Most of its current activities are focused on establishing and documenting the degree of equivalence of the calibration services offered by members. This will be done by comparisons of key standards and techniques and by exchanges of visits to establish mutual confidence. The purpose is to facilitate international trade by providing assurance that each country's measurement system is traceable to the SI units with stated uncertainties.