(a) RulemakingThe Commission shall—
not later than 90 days after the date of enactment of this section, initiate a rulemaking proceeding, including notice and opportunity for public comment, to be completed not later than 18 months after that date, to revise the design basis threats of the Commission; or
not later than 18 months after the date of enactment of this section, complete any ongoing rulemaking to revise the design basis threats.
(b) FactorsWhen conducting its rulemaking, the Commission shall consider the following, but not be limited to—
the potential use of explosive devices of considerable size and other modern weaponry;
the potential for theft and diversion of nuclear materials from such facilities.