Rule 11 Rail Rates Explained: Split-Rate Moves and How to BoL Them (2026)

If your move runs across two or more Class I railroads, you have a routing-and-rating choice. You can accept the originating carrier's joint through-rate (Rule 12 / single-factor), or you can structure the move as Rule 11 — each carrier prices its own leg, the rates publish independently, the BoL records each segment. For high-volume corridors that cross carrier boundaries, Rule 11 is often the cheaper option. Here's how it works.

What Rule 11 Actually Is

Rule 11 is an AAR rule (codified in the rail tariff publication system) that lets two or more railroads each publish their own independent rate for a leg of an interlined move. Each carrier handles its own pricing, billing, and customer relationship for the segment it controls. The shipper receives separate invoices from each carrier — or, in modern practice, a consolidated invoice from a logistics provider that pre-pays each carrier and rolls them up.

Compare this to a joint through-rate (the more traditional way of pricing interline moves), where the originating carrier publishes a single rate that covers the entire move and then settles internally with the delivering carrier via per-revenue-mile-allocation or interline accounting. The shipper sees one rate, gets one invoice, deals with one carrier customer service. Easier on paper, but the joint rate sometimes carries margin that the originating carrier extracts to cover the settlement risk.

Rule 11 vs Joint Through-Rate

Why Rule 11 Is Often Cheaper

Three drivers:

1. No through-rate margin

When the originating carrier publishes a joint through-rate, it often builds in an allowance for interline settlement risk and administrative overhead. Rule 11 removes that allowance — each carrier is paid directly by the shipper and doesn't absorb settlement risk for someone else's leg.

2. Shipper-controlled junction selection

On Rule 11, the shipper picks the junction. That matters because some junctions are cheaper than others — the carriers there have less competition, more capacity, or pre-existing reciprocal switching arrangements. The originating carrier on a joint rate routes through whatever junction minimizes its own internal cost, not yours.

3. Separate carrier negotiation

You can shop your origin-to-junction segment against multiple BNSF lanes, then independently shop your junction-to-destination segment against NS or CSX lanes. On a joint rate, you negotiate against one carrier and that's it.

Junction Selection Matters

Common high-volume interchange points:

• Memphis, TN — BNSF/UP west to NS/CSX east. One of the busiest reciprocal junctions in the system.
• St. Louis, MO — BNSF/UP/CPKC west to NS/CSX east.
• Chicago, IL — the great Class I crossroads. BRC and IHB switching add complexity but also competition.
• New Orleans, LA — gateway between BNSF/UP and NS/CSX with KCS connections.
• Birmingham, AL — NS/CSX with western connections via BNSF and UP.
• Kansas City, MO/KS — major BNSF/UP/CPKC hub.

Switching costs and dwell time at each junction vary. For a sensitive move, ask each carrier for an indicative rate at each candidate junction before locking the routing. Our free rail rate quote tool returns indicative carload estimates and supports Rule 11 routing scenarios.

Concrete Example: BNSF + NS at Memphis

Shipper moves 5 covered hopper cars of corn from Wichita, KS to Atlanta, GA — roughly 1,000 miles total. Carrier coverage: BNSF handles Wichita; NS handles Atlanta. Memphis is the natural junction.

Joint through-rate from BNSF: $4,800/car, single invoice.

Rule 11 alternative:

• BNSF: Wichita to Memphis, $2,400/car
• NS: Memphis to Atlanta, $2,000/car
• Total: $4,400/car — $400 (8%) cheaper than the joint rate

Over 60 cars/year, that's $24,000 in savings on a single lane. On busier corridors with higher volumes, the % savings can range higher.

Caveat: the Rule 11 number above assumes the shipper can secure the NS rate directly. Some shippers don't have NS direct accounts and have to route the Rule 11 through a 3PL or rail broker. That intermediation has its own cost (typically $50-150/car). When the volume is right, it still pencils out.

How to BoL a Rule 11 Move

The BoL for a Rule 11 move records each rate segment separately:

• Originating carrier SCAC + rate — in the example above: BNSF, $2,400/car, Wichita to Memphis
• Junction — Memphis, TN
• Delivering carrier SCAC + rate — NS, $2,000/car, Memphis to Atlanta
• Total charges — sum of segments
• Annotation — "RULE 11 SPLIT — SEE RATE SEGMENTS" in the freight terms block

The originating carrier's electronic waybill will reference the Rule 11 designation and the segment break at the junction. Each carrier issues its own invoice (or, for shippers using a 3PL, the 3PL pre-pays each and rolls up).

Trade-offs: Liability, Tracing, Demurrage

Rule 11 has costs not just savings:

• Liability gaps: on a joint through-rate, the originating carrier is generally liable for the entire move under Carmack. On Rule 11, liability splits at the junction — you may have to file a claim against the delivering carrier separately if damage occurs after handoff.
• Tracing complexity: two carrier customer service portals to monitor instead of one. Most 3PLs and rail logistics providers handle the unified tracing for shippers.
• Demurrage exposure: demurrage rules and free time may differ between carriers. If a car is held at the junction beyond the originating carrier's free time, you may incur demurrage on the BNSF segment even though the NS hasn't picked up yet. Our demurrage calculator models this exposure across multiple carrier rate structures.

Using the Free BoL Builder for Rule 11

The free Rail Bill of Lading Builder exposes a "Rule 11 Split" toggle in the freight-terms block. When enabled:

• The BoL renders a segment table with 2+ rows.
• Each row captures originating SCAC, delivering SCAC, junction, and rate.
• The PDF renders "RULE 11 SPLIT — SEE RATE SEGMENTS" in the freight terms block.
• The total charges line auto-sums across segments.
• Junction dropdown pre-populates with the high-volume interchange list.

For shippers comparing joint-rate vs Rule 11 quotes side-by-side, our free rail rate quote tool returns indicative estimates that you can stack against carrier-quoted joint rates. If you're running consistent volume across two carriers, the Rule 11 math is worth checking on every lane. Open the BoL Builder →