Self-regulatory organization. This term means a contract market (as defined in 1.3), a swap execution facility (as defined in 1.3(rrrr)), or a registered futures association under section 17 of the Act.
17 CFR § 1.3
Words used in the singular form in the rules and regulations in this chapter shall be deemed to import the plural and vice versa, as the context may require. The following terms, as used in the Commodity Exchange Act, or in the rules and regulations in this chapter, shall have the meanings hereby assigned to them, unless the context otherwise requires: