ValidityPeriod

Defines the time frame in which a functional object is available in the field (from first placing into service to final de-commissioning). Also used for setting the time frame in which a regulation or reference system is in force.

ValidityPeriod

Defines the time frame in which a functional object is available in the field (from first placing into service to final de-commissioning). Also used for setting the time frame in which a regulation or reference system is in force.