PCTs.
(ii) PCTs. All controlled participants must commit to, and in fact, engage in platform contributions transactions to the extent that there are platform contributions pursuant to paragraph (c) of this section. In a PCT, each other controlled participant (PCT Payor) is obligated to, and must in fact, make arm's length payments (PCT Payments) to each controlled participant (PCT Payee) that provides a platform contribution. For guidance on determining such arm's length obligation, see paragraph (g) of this section.