To amend the Radiation Exposure Compensation Act to include the Territory of Guam in the list of affected areas with respect to which claims relating to atmospheric nuclear testing shall be allowed, and for other purposes.

Amends the Radiation Exposure Compensation Act to include the Territory of Guam among the affected areas for which health claims relating to atmospheric nuclear testing are allowed.

Sets forth periods of required presence during testing periods for persons in Guam filing leukemia or specified disease claims.