What does a blue stripe on an Airport ID Badge signify?

A blue stripe on an Airport ID Badge indicates authorization for taxi mechanics. This designation is critical in ensuring that only those who have received specific training and background checks are allowed in sensitive areas of the airport where they will be working on ground transportation vehicles. It signifies that the individual has met the necessary requirements and is trusted to perform duties related to the maintenance and operation of taxi services at the airport. This layer of identification helps maintain security protocols at the airport, ensuring that authorized personnel are easily recognizable.