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 D—PIPELINE SAFETY › PART 193—LIQUEFIED NATURAL GAS FACILITIES: FEDERAL SAFETY STANDARDS › Subpart G—Maintenance