USPS set to make changes to its dimensional weight rules

Effective June 23, the United States Postal Service (USPS) will formally make a change in how it implements its dimensional weight rules. This will be done through lowering the dimensional divisor to 166 from its current level of 194, which is in line with the 139 dimensional divisor used by the parcel duopoly of UPS and FedEx.
Source: logistics Mgmt