"This could mean action by the Commonwealth Government to impose nuclear power in WA."
Mr Logan said the new legislation would prohibit the construction or operation of a nuclear facility in WA.
It would also prohibit the transportation of certain material to a nuclear facility site, and prohibit connecting nuclear generation works to an electricity transmission or distribution system.
Companies or individuals who attempt to build or operate a nuclear power plant in WA would face fines of $500,000, he said.
The new laws will include a referendum trigger if the Commonwealth tries to override the new state laws.