CFR > Title 49 - Transportation > SUBTITLE B—Other Regulations Relating to Transportation > CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (Parts 105–199) > SUBCHAPTER C—HAZARDOUS MATERIALS REGULATIONS (Parts 171–181) > PART 180—CONTINUING QUALIFICATION AND MAINTENANCE OF PACKAGINGS > SUBPART D—Qualification and Maintenance of IBCs (§180.350 to §180.352)