In rural areas of Western Australia below the 27th parallel, local governments nominate shop closing hours to the State government, which, if accepted, are implemented by ministerial order. Shopping hours in the state's capital, Perth, are regulated by laws similar to South Australia's. Trading hours are stipulated in law, and are based on size and product offer. As in South Australia, smaller, independently operated supermarket retailers are exempted. Chain supermarkets are required to close Monday to Friday at 9pm, Saturdays at 5pm, and are permitted to trade on Sundays and public holidays only from 11am to 5pm.