Inability of an individual or a group to perform the given tasks up to the established standards. http://www.businessdictionary.com/definition/deficiency-performance.html.
TSA Requirements. The TSA requires that adult passengers ages 18 and older show valid photo ID at the security checkpoint. Children, however, are not required to present such identification. This does not mean, however, that children will be able to fly without it.
You'll need to provide some proof of your identity, but it doesn't have to be a driver's license. Direct from TSA's website... Adult passengers (18 and over) are required to â¦ show a U.S. federal or state-issued photo ID in order to be allowed to go through the checkpoint and onto their flight.