(7)Furthermore, a NSE must provide members with impartial access to their markets and services. The access criteria must further be transparent, and must not be applied in an unfairly discriminatory manner. To this effect, a NSE is required to have rules in place that prescribe the means by which any registered broker-dealer may apply to become a member. The SEC, pursuant to Section 19(b) of the Exchange Act, reviews rules for admission to a NSE. While NSE must have reasonable standards for access, such standards should act to prohibit unreasonably discriminatory denials of access. A NSE must deny membership to any non-registered broker-dealer and may deny membership to any broker-dealer that is subject to a statutory disqualification.