Cfr part 1 July 8, 2019 16 32 64 128 Cfr part 11 Cfr part 1910 Cfr part 145 Cfr part 15 Cfr part 170 Cfr part 11 annex 11 Cfr part 11 implemented in year Cfr part 121 Cfr part 11 was implemented in Cfr part 135 Cfr part 141 Cfr part 11 docusign Cfr part 11 fda Cfr part 177 Cfr part 11 adobe sign