There are two recent, noteworthy actions from the Financial Industry Regulatory Authority, Inc. (FINRA) regarding Rule 5250 and Rule 4530 that should be noted by market makers and other broker-dealers, as follows:

FINRA Rule 5250, which prohibits FINRA members from receiving payments for market making, has undergone a retrospective review.  https://www.finra.org/sites/default/files/2020-01/Regulatory-Notice-20-03.pdf.  Although many stakeholders suggested that the rule should be liberalized, FINRA has determined to make no changes to the rule.  As a result, any payments (particularly from issuers) to a FINRA member in connection with market making (including paying the costs of filing a Form 211) continue to be prohibited (with a few narrow exceptions).

Finra Rule 4530.  As part of its retrospective review program, FINRA is requesting comment on the operation of Rule 4530, generally known as the self-reporting rule.  Many firms agonize over whether they need to report violations that they discover internally.  https://www.finra.org/sites/default/files/2020-01/Regulatory-Notice-20-02.pdf