At the end of the sentence, replace ASHRAE 62.2-2016 with ASHRAE 62.1-2016, so requirement reads:

Meet the requirements of ASHRAE 62.1-2016, Sections 4 and 6.5, and have an engineered natural ventilation system approved by the authority having jurisdiction (per exception 1 of ASHRAE 62.1-2016 section 6.4).