29 C.F.R. § 530.8 Preservation of individual homeworker certificates.
Title 29 - Labor
A copy of all certificates provided to the employer under this part shall be maintained for a period of at least three years after the last employment under the certificate. [49 FR 44271, Nov. 5, 1984]
Title 29: Labor
PART 530—EMPLOYMENT OF HOMEWORKERS IN CERTAIN INDUSTRIES
Subpart A—General
§ 530.8 Preservation of individual homeworker certificates.

