AMTStandards.orgAviation maintenance

Tare weight

The weight of any chocks or devices used to hold an aircraft on scales when it is weighed. The tare weight must be subtracted from the scale reading to get the net weight of the aircraft.

Aviation Maintenance Technician Handbook — General, p. G-10

Also defined in 1 more source

The weight of any chocks or devices that are used to hold an aircraft on the scales when it is weighed. The tare weight must be subtracted from the scale reading to get the net weight of the aircraft.

Aircraft Weight and Balance Handbook, p. G-5