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ISO/IEC 24727 – Identification Cards – Integrated Circuit Cards Programming
Interfaces [Parts 1-6]
This international standard is newly released, and defines a Service Access Layer Interface for Identity
(SALII). The SALII provides a generic and interoperable service layer for client applications to
communicate with a variety of integrated circuit cards (smart cards). The service layer application
programming interface is focused on interfacing with smart cards for the purposes of identity assurance;
but a variety of services are available to support obtaining data from the card, writing data to the card,
authentication, digital signing, key establishment and encryption.
Additional Requirements Imposed on Airport Security Systems
In addition to the standards indicated above, the U.S. federal government regulates various aspects of airport
operations. The Federal Aviation Administration (FAA) and the Transportation Security Administration
(TSA) both impose various regulations and security directives affecting design of airport security systems
Many airports are owned or managed by local, regional, or state governments, and therefore, there may be
local, regional, or state laws or policies that affect the design of airport security systems and processes. For
example, there may be record management (retention and distribution) requirements.
Approved Products List
As of the writing of this section of the document, there is no approved products list (APL) for the use of
products in the airport environment. However, such a program may be implemented in the future. The U.S.
federal government has such a program (managed by the General Services Administration (GSA)) that tests
and identifies products that correctly read and process data stored on the federal government PIV card.
Additionally, the TSA at one time implemented a Qualified Products List (QPL) [Refer: Appendix A:
References: Approved Products List] for additional details) to identify products that were tested to have
met the biometric requirements of the TWIC program. Therefore, it is possible that a similar program may
eventually be implemented for the airport security field, at which time it is expected that TSA will require
that software and hardware used for the purposes of implementing airport security will be listed on this
Environmental Impact to Airport PACS
Environmental impacts to PACS vary with airport geographic location. The first step in determining which
threats are applicable to a given situation is to conduct a risk/threat assessment. An impact assessment
considers the full spectrum of threats (i.e., environmental, accidental, etc.) for a given facility/location. The
assessment should examine supporting information to evaluate the likelihood of occurrence for each threat.
For environmental impacts, historic data concerning frequency of occurrence for given environmental
disasters such as tornadoes, hurricanes, floods, fire, volcanic, earthquakes or cyclones can be used to
determine the credibility of the given threat. However, it should be noted that environmental impacts do
not exist in a vacuum. An environmental incident can serve as a trigger event for criminal activity,
hazardous material discharges, explosions, fires, or transportation accidents, as well as medical
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