The curfew had been in place in Port Moresby and its surrounding region for around a month as part of PNG's state of emergency provisions in response to Covid-19.
The NBC reports Emergency Controller David Manning saying markets, pharmacies, hotels and restaurants, banks, supermarkets and licensed wholesalers are allowed to trade.
All public gatherings remain banned, and public transport has resumed with limits on passenger numbers
Mr Manning has urged the public to continue observing social distancing and safe hygiene measures.
