How accurate must I be in documenting any reduction in load carrying capacity?
When documenting a reduction in load carrying capacity, accuracy must be within one percent of scale reading. If I weigh vehicles to determine reduction in load carrying capacity does the scale have to be certified and legal for trade? No, but it must have a current calibration traceable to the National Institute of Standards and Technology (NIST, formerly the National Bureau of Standards). See http://www.nist.gov/.
