Scottish Government

ADS

Air Discount Scheme

ARDF

Air Route Development Fund

BA

British Airways

CAA

Civil Aviation Authority

GDP

Gross Domestic Product

HIAL

Highlands and Islands Airports Limited

HIE

Highlands and Islands Enterprise

HITRANS

Highlands and Islands Transport Partnership

NTS

National Transport Strategy

PSO

Public Services Obligation

ZetTrans

Shetland Transport Partnership