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.
By Anne-Marie Botek. This week, the Transportation Security Administration (TSA) will begin implementing new screening guidelines for the elderly. Starting March 19, air travelers who are at least 75 years old won't have to take off their shoes or light jackets as they go through security in certain airports. Additionally, seniors who set off a scanner will be allowed to go through again with the hopes of preventing an unnecessary pat-down.