When the visibility drops below 800m or Runway Visual Range (RVR) drops below 550m, the CAT II/CAT Ill operations are commenced at the airports. The aerodromes certified for CAT II/CAT III operations are also required to have adequate infrastructure and instruments as per Directorate General of Civil Aviation (DGCA)/ International Civil Aviation Organization (ICAO) Standards such as Runway edge Lights, Runway Center Line Lights, Approach Lights, Runway TouchDown Zone Lights, Taxiway Center Line lights, Stopbars and CAT II/III Instrument Landing System (ILS).

Bureau of Civil Aviation Security (BCAS), the aviation security regulator of India envisages for installation of CTX at new and major airports so as not to divest electronic items from hand baggage during security check.

The Carbon Offsetting Reduction Scheme for International Aviation (CORSIA) scheme is applicable for international flights only. So far, no decision with respect to usage of Sustainable Aviation Fuel (SAF) in domestic flights has been taken. This has been stated by Union Minister of State for Civil Aviation Murlidhar Mohol in an answer to questions on status of sustainable aviation fuel asked by MP (Rajya Sabha) Sanjeev Arora in the ongoing Winter Session of Rajya Sabha.