Still working: heavy queries on the fallback index can run 20-40 seconds.
C.F.R.
»
Title 49
» CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION › SUBCHAPTER C—HAZARDOUS MATERIALS REGULATIONS › PART 180—CONTINUING QUALIFICATION AND MAINTENANCE OF PACKAGINGS › Subpart F—Qualification and Maintenance of Tank Cars