In general .—

establish a vendor peer group system;

in accordance with subparagraphs (B) and (C), establish competitive price criteria and allowable reimbursement levels for each vendor peer group; and

if the State agency elects to authorize any types of vendors described in subparagraph (D)(ii)(I)—

(aa) distinguish between vendors described in subparagraph (D)(ii)(I) and other vendors by establishing— (AA) separate peer groups for vendors described in subparagraph (D)(ii)(I); or (BB) distinct competitive price criteria and allowable reimbursement levels for vendors described in subparagraph (D)(ii)(I) within a peer group that contains both vendors described in subparagraph (D)(ii)(I) and other vendors; and

(bb) establish competitive price criteria and allowable reimbursement levels that comply with subparagraphs (B) and (C), respectively, and that do not result in higher food costs if program participants redeem supplemental food vouchers at vendors described in subparagraph (D)(ii)(I) rather than at vendors other than vendors described in subparagraph (D)(ii)(I).