The regions for the ANO 28 exemption were Highlands, Madang, Islands, Sepik, Western, Northern, Morobe and Milne Bay and if I recall I think it was 4 regions but had to include the Highlands. In 1981 the money wasn't much but went nicely on top of the cash fares to assist in keeping SP in business.
High 6
Welcome to Bull S--- Corner - hap bilong ol lapun!!
You obviously survived the Reunion!!!
Woomera