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+---
+title: Attribution Factor
+---
+
+The proportion of an emission that is attributable in some circumstance, typically expressed as a percentage. It is used discretionally to calculate that value.
+
+A common example of its use might be in a "bring your own device" policy: if a laptop is provided by a worker and used during a working week for work but outside that time for other purposes, the attribution factor for its emissions would represent the proportion of time it is used for work.
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