DG Digest: USPS poised to overhaul rules for mailing liquids, Pub 52, including non-hazmat types

The week after the 4th of July holiday finds the nation settling into the typical summer period of somewhat lessened regulatory activity, with one major exception; the US Post Office has issued an NPRM that if adopted with impose major changes on its handling of non-hazardous liquids in the US Mail.  Many companies mail liquids