Registration begins at noon on Wednesday, May 16, via Internet only.
Sights along the tour include Hanfords 100 and 300 Areas as well as the original Hanford town site.
Tours take place in the middle of June. They are free of charge and last about 4 hours.
Tour seekers must be U.S. citizens, 16 years of age and have proper photo ID.
Log on to http://www5.hanford.gov/publictours/ to register.