This includes the Country week round.
In a statement released by the PNGRFL, the 2019 ISC was endorsed at the last CEOs meeting in Brisbane last month.
PNGRFL CEO Reatau Rau said the 12 of the 23 ISC matches, including the Round 18 Country Week round this July, will be played here in PNG.
The 14 team Intrust Super Cup 2019 competition kicks off on the weekend of March 9 and 10 with the SP Hunters playing Tweed Heads Seagulls away in Piggabeen Sports Complex in Brisbane.