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This program licenses all individuals involved in weighing a commodity for commercial purposes where the gross, tare and net may be determined by use of a large capacity scale (scales that measure weights of greater than 1,000 pounds).  The public weighmaster's license is valid for two years from the date it is issued.  The fee for a public weighmaster's license is $60.  This fee shall be by check or money order made payable to the "Commonwealth of PA."  Commercial weighing is the buying or selling of any commodity, charging for a service or charging to do weighing.