The changes: 1) set the assumed annual rate of return to be used in assessing sufficiency of financial assurance of trust funds; 2) remove insurance or other guarantees as financial assurance options; 3) add a condition for termination of having sufficient financial assurance; 4) add an operating standard that requires that operations will be conducted to minimize introduction of residual radioactivity to the site; 5) require site surveys to include the subsurface; 6) change "necessary" to "reasonable"; and 7) set recordkeeping requirements for site surveys.