If FAR Part 135 is meeting the same security requirements as the airlines — crew and passenger screening, baggage inspections, secured facilities and aircraft, etc. — why aren't charter operators conferred the same access to presidential Temporary Flight Restrictions (TFRs)?
Business aviation operators, both private and commercial, have the NBAA's Security Council, among other aviation advocacy entities, to thank for the currently harmonious relationship with the TSA.
The NBAA website contains a useful primer on the Twelve-Five Standard Security Program. Here is an excerpt providing a concise history of the security protocol: