Salt pork will last for up to 2 months in the fridge.
If you want to keep the salt pork longer than 2 months you should freeze the salt pork instead of refrigerating the salt pork.
When frozen the salt pork will last in the freezer for 6 months to a year.
It's best to use the salt pork within 6 months if frozen and it's best to use the salt pork within 1 month when refrigerating it.
However the salt pork will last for a couple of months even when refrigerated.
It will taste better if used and eaten within 1 month of refrigerating it.
If you leave the salt pork longer than 2 months in the refrigerator then it can go bad and grow bacteria and should be thrown out to prevent illness.
But in the freezer the salt pork can last up to a year but it's best used before the 6 months.