| Acronym |
Description |
| ABTA |
Association of British Travel Agents |
| ACFO |
Association of Car Fleet Operators |
| ACTE |
Association of Corporate Travel Executives |
| ADR |
Average daily room rate |
| APIS |
Advanced Passenger Information System |
| ATOC |
Association of Train Operating Companies |
| ATOL |
Air Travel Organisers' Licensing |
| BAPCO |
British Association of Professional Conference Organisers |
| BAR |
Best available rate |
| BTA |
Business travel agent |
| BTC |
Business travel centre |
| CDW |
Collision damage waiver |
| CRM |
Customer relationship management |
| CRO |
Central reservation office |
| CRS |
Central reservation system |
| CSR |
Corporate social responsibility |
| DDR |
Daily delegate rate |
| ETES |
End-to-end solution |
| ESTA |
Electronic System for Travel Authorisation |
| FFP |
Frequent flyer programme |
| GDS |
Global distribution system |
| GTMC |
Guild of Travel Management Companies |
| HBA |
Hotel booking agent |
| HBAA |
Hotel Booking Agents Association |
| IATA |
International Air Transport Association |
| ITM |
Institute of Travel & Meetings |
| ISO |
International Organisation for Standardisation |
| KPI |
Key performance indicators |
| LRA |
Last room availability |
| MI |
Management information |
| MIA |
Meetings Industry Association |
| MPI |
Meetings Professionals International |
| OTM |
Online travel management |
| PNR |
Passenger name record |
| RFP |
Request for proposal |
| ROI |
Return on investment |
| SBT |
Self-booking tool |
| SITE |
Society of Incentive & Travel Executives |
| SLA |
Service level agreement |
| SME |
Small and/or medium-sized business/es |
| TEM |
Travel and expense management |
| TMC |
Travel management company |
| TMPL |
Travel Management Partnership Limited |
| VWP |
Visa Waiver Program |
