Clearance can refer to: Engineering Engineering tolerance, a physical distance or space between two components Ride height (vehicle clearance) Hydraulic clearance Clearance in civil engineering Ground clearance, the amount of space between the base of an automobile tire and the underside of the chassis The difference between the loading gauge and the structure gauge, the amount of space between the top of a rail car and the top of a tunnel or the bottom of a rail car and the top of rail Air draft, applies to bridges across navigable waterways Clearance car, a type of railroad car used to check clearances around the tracks Finance and trade Intellectual property Collective rights management, the licensing of copyright and related rights Sample clearance, legal permission to re-use a recording in another work Other uses in finance and trade Cheque clearing, the process of transferring value on a cheque from one bank account to another The activity of a Clearing house (finance) where a variety of financial instruments are cleared through the issuing institution Customs clearance, in international trade, the movement of goods through customs barriers Market clearing or equilibrium price, the price at which quantity supplied is equal to quantity demanded Closeout (sale), in retail, the final sale of items to zero inventory Other uses Authorization or permission from an authority Air traffic control clearance in aviation Security clearance, a status granted to individuals allowing them access to classified information Clearance (pharmacology), the rate at which a substance is removed or cleared from the body by the kidneys or in renal dialysis Clearance rate, in criminal justice, the number of crimes "cleared" divided by the number reported Deforestation, the deliberate clearance of woodland or forest for human development A chess term for removal of pieces from a rank, file or diagonal so that a bishop, rook or queen is free to move along it The Highland Clearances, eviction of tenants in the Scottish Highlands during the 18th and 19th centuries The Lowland Clearances, eviction of tenants as part of the Scottish Agricultural Revolution in the Scottish Lowlands In Australian rules football, the clearing of the ball out of a ball-up situation See also Clear (disambiguation) Clearing (disambiguation)