§397.203. Standards for determining preemption.
49 C.F.R. § 397.203
Any highway routing designation established, maintained, or enforced by a State, political subdivision thereof, or Indian tribe is preempted if—
Compliance with both the highway routing designation and any requirement under the Act or of a regulation issued under the Act is not possible;
The highway routing designation as applied or enforced creates an obstacle to the accomplishment and execution of the Act or the regulations issued under the Act; or
The highway routing designation is preempted pursuant to § 397.69(b) of this part.
[Reserved]
Notes, amendments, and revision history
Amendments
[57 FR 44132, Sept. 24, 1992, as amended at 59 FR 51834, Oct. 12, 1994]
Source
Source: 57 FR 44132, Sept. 24, 1992, unless otherwise noted.
Authority
Authority: 49 U.S.C. 322; 49 CFR 1.87. Subpart A also issued under 49 U.S.C. 5103, 31136, 31502, and 49 CFR 1.97. Subparts C, D, and E also issued under 49 U.S.C. 5112, 5125.
Source
Source: 36 FR 4876, Mar. 13, 1971, unless otherwise noted.
Amendments
[57 FR 44132, Sept. 24, 1992, as amended at 59 FR 51834, Oct. 12, 1994]