ETOPS as a name doesn't exist now for quite a lot of states. ( at least in HK, HKCAD follows ICAO )
It's called EDTO
Extended Diversion Time Operations
There are now rules for 4 Eng A/C as well.
Extended Diversion Time Operations (EDTO) The following flights are considered EDTO flights:
• operations of a twin engined aircraft conducted over a route that contains a point further than 60 minutes flying time in still air, at the specified one engine inoperative cruising speed, from an adequate airport
• operations in a four engined aircraft conducted over a route that contains a point further than 180 minutes flying time in still air, at the specified all engine operative cruising speed, from an adequate airport.