products. The Secretary shall carry out the program in accordance with this section, through one or more contracts with one or more online marketplace providers, and shall design the program to enable Department of Defense-wide use of such marketplaces. (b) Criteria for online marketplaces The Secretary shall ensure that an online marketplace used under the program established pursuant to subsection (a)— (1) is used widely in the private sector, including in business-to-business e-commerce