<Li> Electronic signatures and controls </Li> <Li> Controls for identification codes / passwords </Li> <Ul> <Li> FDA Title 21 CFR Part 11: Electronic Records; Electronic Signatures; Final Rule (1997) </Li> </Ul> <Li> FDA Title 21 CFR Part 11: Electronic Records; Electronic Signatures; Final Rule (1997) </Li>

When did 21 cfr part 11 become effective