StacksVerified U.S. regulatory reference

49 CFR §555.15

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Subject to § 555.16, each temporary exemption granted by the Administrator under this subpart shall be in effect for a period of three years from the effective date. The Administrator shall identify each exemption by a unique number.