CFR > Title 49 - Transportation > SUBTITLE B—Other Regulations Relating to Transportation > CHAPTER III—FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (Parts 300–399) > SUBCHAPTER B—FEDERAL MOTOR CARRIER SAFETY REGULATIONS (Parts 350–399) > PART 397—TRANSPORTATION OF HAZARDOUS MATERIALS; DRIVING AND PARKING RULES > SUBPART E—Preemption Procedures (§397.201 to §397.225) > 397.221—Timeliness.

397.221—Timeliness.

If the Administrator fails to take action on the application within 90 days of serving the notice required by § 397.217(d), the applicant may treat the application as having been denied in all respects.