§ Appendix C to Part 172 Appendix C to Part 172—Dimensional Specifications for Recommended Placard Holder
PART 172—HAZARDOUS MATERIALS TABLE, SPECIAL PROVISIONS, HAZARDOUS MATERIALS COMMUNICATIONS, EMERGENCY RESPONSE INFORMATION, TRAINING REQUIREMENTS, AND SECURITY PLANS, last amended 2016-08-15
Official text from eCFR.gov, up to date as of 2026-10-22. Checked for changes every day.