; (ii) except in the case of a ballot marking device used exclusively to comply with the requirements of paragraph (3), is certified in accordance with section 232 as meeting the requirements of subparagraph (B); and (iii) meets the requirements of clauses (iii) through (viii) of section 301(a)(9)(B). (B) Requirements (i) In general A ballot marking device meets the requirements of this subparagraph if, during a double-masked test conducted by a qualified independent user experience research laboratory (as defined in section 232(b)(4)) of a simulated election scenario which meets the requirements of clause (ii), there is less than a 5 percent chance that an ordinary voter using the device would not detect and report any difference between the vote selection printed on the ballot by the ballot marking device and the vote selection indicated by the voter. (ii) Simulated election scenario A simulated election scenario meets the requirements of this clause if it is conducted with— (I) a pool of subjects that are— (aa) diverse in age, gender, education, and physical limitations; and (bb) representative of the communities in which the voting system will be used