{"data":{"id":"us/49-cfr-397.221","jurisdiction":"us","citation":"49 CFR 397.221","heading":"Timeliness.","body":"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.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER III—FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER B—FEDERAL MOTOR CARRIER SAFETY REGULATIONS","PART 397—TRANSPORTATION OF HAZARDOUS MATERIALS; DRIVING AND PARKING RULES","Subpart E—Preemption Procedures"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"477f56851d2fee616fafbdfb6c63ca243c4cde73b32819de6304aa74002eb0f4","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-397.219","next":"us/49-cfr-397.223"},"notice":"GroundRules: Original legal text. Not legal advice."}