Last-Mile Logistics Glossary
Plain-English definitions of the terms that matter most in parcel shipping — from surcharges and SLAs to zone skipping and proof of delivery.
27 terms
3PL (Third-Party Logistics)
A 3PL, or third-party logistics provider, is a company that manages outsourced logistics operations — warehousing, fulfillment, transportation, or some combination — on behalf of a shipper. Brands and retailers often use 3PLs to scale distribution without owning infrastructure. When a 3PL needs a parcel carrier, they work with networks like LMS on behalf of their shipper clients.
Address Correction Surcharge
An address correction surcharge is a fee assessed by a carrier when a recipient's address must be corrected mid-transit — for example, a wrong ZIP code or an undeliverable street address. Major carriers charge this fee per corrected shipment. LMS does not charge an address correction surcharge under its FinalFare pricing model.
DAS (Delivery Area Surcharge)
A Delivery Area Surcharge, commonly abbreviated DAS, is an extra per-package fee levied by carriers like FedEx and UPS when a parcel is delivered to a ZIP code they classify as 'extended' — typically lower-density or rural areas. DAS rates vary by carrier and ZIP code classification and are published and updated periodically. LMS does not charge a DAS under its all-in FinalFare pricing; the rate you see is the rate you pay.
Dimensional Weight (DIM Weight)
Dimensional weight, or DIM weight, is a pricing technique used by carriers to charge for the space a package occupies rather than just its actual weight. It is calculated by multiplying the package's length × width × height (in inches) and dividing by a DIM factor (typically 139 for domestic ground). Carriers bill the higher of actual weight versus DIM weight, meaning a large but light box is often billed at its DIM weight.
EDAS (Extended Delivery Area Surcharge)
An Extended Delivery Area Surcharge (EDAS) is a second-tier, higher-cost surcharge applied by major carriers to ZIP codes they consider even more remote than standard DAS zones. Like DAS, EDAS can add meaningful cost per shipment on top of the base rate and fuel surcharge. LMS's FinalFare pricing includes no DAS or EDAS charges of any kind.
FinalFare
FinalFare is LMS Core's all-in pricing model: on LMS Core, the rate quoted is the total rate billed — no fuel surcharge, no residential surcharge, no Delivery Area Surcharge (DAS), no Extended Delivery Area Surcharge (EDAS), and no peak or demand surcharge, ever. Shippers can forecast Core freight costs with certainty because there are no add-on line items after the base rate. (LMS Reach is priced on rate-shopped partner rates, which can carry their own surcharges; LMS Returns is a flat $4.99 per return.)
Fuel Surcharge
A fuel surcharge is a variable fee that carriers add to each shipment to recover fluctuating diesel and jet-fuel costs. Major parcel carriers adjust the surcharge weekly or monthly, tying it to published fuel-price indices. Because it moves independently of the base rate, shippers cannot accurately predict their total shipping cost week to week. LMS Core eliminates the fuel surcharge entirely through its FinalFare model; LMS Reach rates are partner-sourced and may carry a carrier fuel surcharge.
Induction
Induction is the act of entering parcels into a carrier's network at a specific facility — typically a hub, sort center, or regional depot. Shippers who bring freight to a carrier's induction point (rather than having it picked up) often qualify for lower rates. The induction point is where the carrier takes possession and the shipment's chain of custody begins.
Last Mile
Last mile refers to the final leg of a shipment's journey — from a distribution center or local depot to the recipient's door. Despite being the shortest segment geographically, last-mile delivery is typically the most expensive and time-sensitive stage of the supply chain, often accounting for 40–53% of total shipping cost. LMS specializes exclusively in last-mile parcel delivery across the Continental U.S.
Line Haul
Line haul is the long-distance transportation segment that moves freight between two hubs or distribution centers — distinct from the first-mile pickup or the last-mile delivery leg. In parcel networks, line haul is typically handled by truckload or intermodal carriers contracted by the parcel network. LMS uses efficient line-haul partners to move volume between its regional hubs before handing parcels off to its proprietary network for last-mile delivery.
LMS Core
LMS Core is Last Mile Solutions' flagship parcel delivery service, operating on LMS's proprietary network. Core delivers next-day to an expanding U.S. footprint with a 99% on-time delivery rate and photo proof-of-delivery on every parcel (1 oz–70 lb). All Core shipments are priced on FinalFare — one all-in rate with no fuel, residential, DAS, EDAS, or peak surcharges.
LMS Reach
LMS Reach is Last Mile Solutions' nationwide parcel service, providing reliable delivery to 100% of zip codes in the Continental United States. Reach is designed to complement LMS Core — the same shipper integration covers both networks, and LMS automatically routes each parcel between Core and Reach to optimize cost and performance. Reach makes it possible to ship everywhere in the Continental U.S. through a single carrier relationship.
LMS Returns
LMS Returns is Last Mile Solutions' national returns program — a flat-rate, label-less, box-less verified-intake model for reverse logistics. Customers drop off eligible soft goods and footwear with a digital authorization (no printed label, no carton); LMS visually verifies each return at intake, creates a digital intake record, then consolidates and line-hauls returns to the brand's processing facility. One flat national rate of $4.99 per return, no zone-based pricing.
Middle Mile
The middle mile is the transportation leg that connects a shipper's origin facility (or fulfillment center) to a regional carrier hub or distribution center, sitting between first-mile pickup and last-mile delivery. Improving middle-mile efficiency — through zone-skipping, direct injection, or dedicated lane agreements — reduces total transit time and cost. Many shippers use zone-skipping to bypass the middle mile entirely.
On-Time Delivery (OTD)
On-time delivery, often abbreviated OTD, is the percentage of shipments that arrive on or before the promised delivery date. It is the primary service-quality metric in parcel shipping. LMS Core delivers 99% on-time across its network — a metric LMS tracks and publishes rather than treating as a marketing claim.
Parcel
A parcel is a single packaged unit — a box, poly mailer, or tube — shipped individually through a carrier's sortation and delivery network. Parcels are distinct from freight shipments, which move on pallets or in truckload quantities. LMS Core handles parcels weighing 1 oz to 70 lb; LMS Reach extends that to 150 lb.
Peak Surcharge
A peak surcharge (sometimes called a demand surcharge) is a temporary per-package fee that major parcel carriers impose during high-volume periods such as the holiday shipping season, typically October through January. The surcharge can apply on top of fuel, residential, and DAS charges simultaneously, significantly increasing total shipping cost. LMS never charges a peak or demand surcharge under its FinalFare model.
Photo Proof of Delivery (Photo POD)
Photo proof of delivery is a delivery confirmation practice where the driver photographs the delivered package at the recipient's door or designated drop location, timestamped and GPS-tagged, as evidence of successful delivery. It reduces consumer claims of non-delivery and provides shippers with a visual record for dispute resolution. LMS captures a photo proof of delivery on every parcel across its Core network as standard.
Proof of Delivery (POD)
Proof of delivery (POD) is documentation confirming that a shipment reached its destination — this can take the form of a recipient signature, a timestamped scan, or a photo at the delivery location. POD is used by shippers and carriers to resolve delivery disputes, process claims, and verify SLA compliance. LMS provides photo proof of delivery on every Core parcel as a standard feature.
Residential Surcharge
A residential surcharge is an additional per-package fee that carriers like FedEx and UPS charge when delivering to a home address rather than a commercial location. Because residential stops are more dispersed and time-consuming than commercial stops, major carriers price them higher. LMS does not charge a residential surcharge — FinalFare pricing is the same regardless of whether the destination is a home or a business.
RTS (Return to Sender)
Return to sender, abbreviated RTS, occurs when a parcel cannot be delivered — due to an invalid address, unclaimed package, or recipient refusal — and is sent back to the originating shipper. RTS events generate additional handling and transportation costs for both the carrier and the shipper. Reducing RTS rates requires accurate address validation at the time of shipment creation.
Scan-to-Scan
Scan-to-scan refers to a carrier's practice of recording an electronic scan event at every major handling touchpoint in a parcel's journey — induction, sort, load, delivery attempt, and final delivery. The continuous scan chain creates a full chain of custody and provides both shippers and recipients with granular, real-time visibility. LMS maintains a scan-to-scan tracking record for every parcel moving through its network.
SLA (Service Level Agreement)
A service level agreement (SLA) in parcel shipping defines the committed delivery standard — typically a transit time (e.g., next-day) and a minimum on-time percentage — that a carrier guarantees to a shipper. SLAs are the contractual backbone of shipper-carrier relationships and the basis for service credits when performance falls short. LMS Core's published SLA commits to next-day delivery with a 99% on-time rate.
Sortation
Sortation is the process by which a carrier organizes inbound parcels by destination ZIP code, delivery route, or carrier zone for onward movement. In a parcel network, sortation happens at regional hubs and local depots, typically overnight, so drivers can depart loaded in the morning. Efficient sortation is one of the key operational factors behind high on-time delivery rates.
Verified Intake (LMS Returns)
Verified intake is the physical and digital confirmation step LMS performs at the drop-off point for every LMS Returns item. It includes: confirming the return authorization is valid and active, visually comparing the physical item against its reference image and description, confirming the consumer has physically surrendered the item, and creating a timestamped digital intake record. Verified intake does NOT include SKU-level scanning, condition grading, authentication of branded goods, fraud adjudication, or technical inspection — those are brand-side decisions made at the processing facility. LMS's role ends at verified intake; LMS does not adjudicate or approve refunds.
Zone
In parcel shipping, a zone is a geographic pricing band that a carrier uses to determine transit time and base rate — typically defined by the distance or travel days between the shipment's origin ZIP code and destination ZIP code. Most U.S. parcel carriers use Zones 2–8 (or similar), with Zone 2 being the closest and Zone 8 the most distant. Rates increase with zone because longer distances require more handling and line-haul capacity.
Zone Skipping
Zone skipping is a shipping strategy where a shipper transports consolidated freight inland — via truckload or air — closer to its destination before injecting parcels into a carrier's local network, thereby 'skipping' higher-priced zones. For example, a California-based shipper might truck a trailer of parcels to a Dallas hub and inject them into a regional carrier's network to achieve Zone 2 or Zone 3 rates on what would otherwise be Zone 6–8 shipments. Zone skipping can meaningfully reduce per-parcel cost for shippers with sufficient volume.
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