17 CFR §38.151

1. (a)Jurisdiction. Prior to granting any member or market participant access to its markets, a designated contract market must require that the member or market participant consent to its jurisdiction.
2. (b)Impartial access by members, persons with trading privileges and independent software vendors. A designated contract market must provide its members, persons with trading privileges, and independent software vendors with impartial access to its markets and services, including:
   1. (1)Access criteria that are impartial, transparent, and applied in a non-discriminatory manner; and
   2. (2)Comparable fee structures for members, persons with trading privileges and independent software vendors receiving equal access to, or services from, the designated contract market.
3. (c)Limitations on access. A designated contract market must establish and impartially enforce rules governing denials, suspensions, and revocations of a member's and a person with trading privileges' access privileges to the designated contract market, including when such actions are part of a disciplinary or emergency action by the designated contract market.