The nine rules that matter, and what each controls
Most policy documents spend pages on conduct and almost nothing on the rules that move money. The table maps each module to the leak it closes and the setting top-quartile programs use. Savings are Business Travel Consulting 2026 benchmark estimates as a share of total annual T&E spend, measured against having no rule.
| Policy module | Recommended setting | Estimated saving | Leakage it controls |
|---|---|---|---|
| Advance purchase | 14 days domestic, 21 international | 0.5%–0.9% | Late-booking fare premiums |
| Cabin by flight duration | Premium economy over 6 hrs, business over 10 hrs | 0.6%–1.2% | Premium cabin on short flights |
| Lowest logical fare | ±2 hours, one connection maximum | 0.5%–0.8% | Loyalty-driven fare choice |
| City-tier hotel caps | Three tiers, caps from your own ADR data | 0.4%–1.3% | Hotels above market rate |
| Mandatory booking channel | Managed channel; agent for complex trips | 0.2%–1.1% | Out-of-channel bookings |
| Unused ticket credits | Credits used first, reapplied automatically | 0.1%–0.6% | Expired non-refundable value |
| Pre-trip approval | International and out-of-policy trips | 0.2%–0.5% | Unplanned high-cost trips |
| Ground transport | Intermediate car, rail under 4 hrs | 0.2%–0.3% | Upgrades, refuel and insurance charges |
| Out-of-channel reimbursement | Reimbursed at in-policy cost only | 0.1%–0.5% | Bookings made outside the program |
Air clauses: advance purchase, cabin class and lowest logical fare
Air rules work best expressed as measurable thresholds the booking tool can enforce: days before departure, scheduled flight time and a time window around the requested departure.
Policy 3.1 · Advance purchase
Domestic air travel shall be booked at least 14 days before departure and international air travel at least 21 days before departure. Bookings made inside these windows require approval in the booking tool, with a reason code, unless the trip responds to a client or operational emergency.
Policy 3.2 · Cabin class by flight duration
Economy class applies to all flights with a scheduled flight time of 6 hours or less. Premium economy may be booked for flights scheduled over 6 hours, and business class for flights scheduled over 10 hours. Flight time is measured per segment, excluding connection time.
Policy 3.3 · Lowest logical fare
Travelers shall book the lowest logical fare available within two hours either side of the requested departure time, with no more than one connection on domestic routes and no connection adding more than 90 minutes to total journey time. Choosing a higher fare for loyalty or personal preference requires a reason code and is reported monthly.
Carrier discounts only pay when travelers book the contracted carrier, so align lowest logical fare with preferred-carrier rules; see corporate airline sourcing.
Hotel clauses: city-tier caps and preferred properties
A single national hotel cap is too low for Manhattan and too high for most other cities. Three tiers solve that. Set each cap from your own 12-month ADR data and the negotiated rates in each city, not from a published average.
- Tier 1 cities are high-compression business districts, such as those in the corporate travel corridors index. Cap at about 110% of your negotiated ADR there, with a separate peak-season cap.
- Tier 2 cities are regular-use metros with moderate rates and seasonal peaks.
- Tier 3 covers all other locations at a single cap.
Policy 4.1 · Hotel caps by city tier
Hotel bookings shall not exceed the nightly cap for the city tier in Appendix B, excluding taxes. Where a preferred hotel with a negotiated rate is available within 3 miles of the business destination, travelers shall book it. A booking above the cap requires pre-trip approval unless no compliant room is available, in which case the booking tool records the lowest rate shown.
Caps only hold if the rates behind them survive compression. Negotiate LRA in Tier 1 cities, as explained in LRA vs. NLRA close-out math.
Channel clauses: mandatory booking tool, unused tickets and reimbursement
The channel rule is the one that makes every other rule enforceable. A policy applied only to bookings that happen to go through the TMC misses the trips most likely to break it.
Policy 2.1 · Mandatory booking channel
All air, hotel, car and rail bookings for business travel shall be made through the company’s designated online booking tool. Travelers may contact the travel agency for multi-destination international trips, group travel or bookings the tool cannot complete. Bookings made through any other channel are reimbursed only up to the in-policy cost shown in the booking tool for the same trip.
Policy 2.4 · Unused ticket credits
Before purchasing a new ticket, travelers shall use any unused ticket credit held with the same carrier. The travel agency applies eligible credits automatically. Credits held by departing employees are reviewed by the travel manager before the employee’s profile is closed.
Companies still moving off consumer sites should phase these clauses in alongside the 60-day managed travel roadmap.