Global Requirements
The ICAO requirement from Jan 1 2005 is for ACAS II (read TCAS II) to be installed on any Turbine A/C with MTOW of 5,700kgs+ or 19+ Pax.
The US require 15,000kgs+ MTOW turbine powered a/c to have Mode S Transponder and TCAS II (Version 7). Aircraft with 10-30 pax require only TCAS I at a minimum.
Europe is in the process of complying with ICAO. Most states in Asia Pacific are ICAO compliant or are in the process of becoming so and yet Australia has no plan to do so.
The UK CAA identified that the cost of compliance with the ICAO standard for aircraft not yet fitted with ACAS/TCAS II would be between GBP 131,000 and 163,000.
Is an equivalent amount too costly for operators of 19-30 pax turbine a/c in this country? (This is a genuine question, not rhetorical)