The Bombardier Global Express, Airbus Corporate Jetliner, Boeing Business Jet and all other aircraft with a mtow of 95,000 lb or more and used in private charter operations are covered by new security rules, effective August 19, that require pre-boarding screening of passengers and property. Although comments may be submitted until July 19, the Transportation Security Administration rules were adopted last month with no advance notice of proposed rulemaking. The rule specifically mentions "private charter" operations and Part 121 and not "air taxi" operations, but TSA officials indicate that the rule is intended to apply to Part 135 on-demand air-taxi aircraft in this weight category as well. Specifically, each operator subject to this rule will need to "establish a program that provides for screening individuals and accessible property; training all employees with security-related duties; training all security coordinators and crewmembers; acknowledging receipt of, and distribution of, security directives and information circulars; and preparing, maintaining and accommodating modifications to a security program."