42 CFR § 136.56
Recordkeeping requirements
June 11, 2020
Documents required by §136.54 must be maintained for three years pursuant to the retention and custodial requirements for records at 45 CFR part 75.361.
[64 FR 58322, Oct. 28, 1999. Redesignated and amended at 67 FR 35342, May 17, 2002; 81 FR 3010, Jan. 20, 2016]