Sec rule 15c3-5 July 8, 2019 16 32 64 128 Sec rule 15c3 5 adopting release Sec rule 15c3 5 market access Sec rule 15c3-3 Sec rule 15c-3 Sec rule 15c3-1 Sec 15a-6 rule Sec rule 15c2-4
