Official PA daily uses non-recognition terminology: "The 1948 territories"
Official PA daily, Al-Hayat Al-Jadida - Mar. 24, 2017

 
     “The Israeli police for the first time in 18 years announced a rejection of the request for a permit [to hold] the Nakba (i.e., “the catastrophe,” Palestinian term for the establishment of the State of Israel) anniversary procession, which will be held in May in the Galilee within the 1948 territories (i.e., Israel).”

Palestinians commemorate Nakba Day on May 15, the day after Israeli Independence Day. On May 15, 1948, combined forces from Egypt, Jordan, Syria and Iraq joined Palestinian Arab forces in an attempt to eradicate the newly-established State of Israel. The
Nakba (i.e. "the catastrophe) refers to the displacement of Palestinians that occurred as a result of this Arab war of aggression against Israel.