National Conference on Weights and Measures (NCWM)

The National Conference on Weights and Measures is a professional association of state and local weights and measures officials, federal agencies, manufacturers, retailers and consumers. NCWM has developed national weights and measures standards since 1905. Those standards are published in NIST Handbooks 44, 130 and 133 and are adopted by the states, territories, District of Columbia and Navajo Nation, bringing about national uniformity in commerce. NCWM also administers the National Type Evaluation Program (NTEP) for weighing and measuring devices and the Professional Certification Program for weights and measure officials.