29 C.F.R. § 2570.50 Revocation or modification of exemptions.
Title 29 - Labor
(a) If, after an exemption takes effect, changes in circumstances, including changes in law or policy, occur which call into question the continuing validity of the Department's original conclusions concerning the exemption, the Department may take steps to revoke or modify the exemption. (b) Before revoking or modifying an exemption, the Department will publish a notice of its proposed action in the (c) Ordinarily the revocation or modification of an exemption will have prospective effect only.
Title 29: Labor
PART 2570—PROCEDURAL REGULATIONS UNDER THE EMPLOYEE RETIREMENT INCOME SECURITY ACT
Subpart B—Procedures for Filing and Processing Prohibited Transaction Exemption Applications
§ 2570.50 Revocation or modification of exemptions.