Conformance

n. correspondence, similarity; adaptation; act of conforming, compliance, submission

Noun
1. correspondence in form or appearance
(synonym) conformity
(hypernym) agreement, correspondence
(hyponym) justness, rightness, nicety
(derivation) conform

(n.)
Conformity.
  

An affirmative indication or judgment that a product or service has met the requirements of a relevant specification, contract or regulation.

The condition established when an aircraft's actual position is within the conformance region constructed around that aircraft at its position, according to the trajectory associated with the aircraft's Current Plan.