Amazon is opening its partial-load shipping service to outside businesses, escalating competition with legacy freight carriers and sending shares of several of those companies lower.
The e-commerce giant said on June 10 that it is expanding its less-than-truckload, or LTL, service beyond its current inbound-only model to all destinations. LTL shipping is used for freight that is too large for small-parcel carriers but not large enough to fill a full-size trailer.





